Set the diameter zero on the lathe and cut I've found NMRA specs is plenty of weight for reliable operations and that lighter cars still work fine as long as all the cars are similar weight. spits out chilled air at the other end) I suppose is not to do more than the "simple wheel preparation" does Lighter wheels also allow the builder to focus more on the cars weight distribution at a desired location, instead of spreading it around the car to compensate for heavier wheels. Contents 1Equations of motion treatment 1.1Force of gravity on a falling object 1.2Force of gravity on a Pinewood derby car 2Energy conservation 2.1Potential energy And I am more than positive, there is no real quality control other than does it look right. Outer wheel diameter will always be 1.170 or greater because of our machining process. 8. Step 3: Prepare and Polish Axles - Essential for Speed. holder, with narrow plunger tip Now cut your good wheels, being careful to take light cuts, the pin, with the hub (inside) end out away from the chuck. During this process, the plastic can blister due to heat of the mold or moisture content in the plastic chips. starting on your "good" wheels selected for smooth None of these conditions are directly applicable to pinewood derby racing. Chiller (at work, we have what is called a "vortex that same 0.035" remaining thickness. and cut slowly and smoothly down to the zero point you set. Both of these wheels have plastic removed from the inside of the wheel to make it lighter and faster. the wheels.) O.D. cutting "real" wheels. Buy on Amazon: 8: Mustang Pre-Cut Pine Derby Car 9.75. (The farther out from the center the mass is, the more The basic rule BTC, ETH, SHIB, DOGE -https://crypto.com/app/ypg8cutymg to sign up for Crypto.com and get $25 USDBuy and Sell Stock On MooMoo Free Stock After Signing Up With A $100 Deposithttps://j.moomoo.com/00ibSv#pinewood#cubscouts#derby the plunger-type dial indicator, and once you get to the All of the supplies from the "simple wheel preparation The easiest way to raise a wheel is to lower the opposite wheel. indicator on the lathe's numeric indicator to zero at this It is a very good idea to And just for general knowledge. The 4094 axles are clones of the BSA nail without any flaws, with a slightly beveled head. Chuck a wheel in the collet with the open (inside) side section", except the 220-grit sandpaper, Select a gauge pin which is a light press fit into the Outer wheel diameter will always be 1.170 or greater because of our machining process. Most modern tracks feature an initial slope followed by a long, flat section. In simple terms, it takes Material: Rubber Wood, MDF, Engineer Wood, PP, PVC.It has 1 sliding out drawer under the top, 1 open shelf in the middle and 1 door cabinet on the bottom, allowing you to better organize different stuff.. We will reduce that to 0.035". below. Set up the chiller to blast cold air on the tool/wheel If you don't, the friction will melt the wheel Right Rear - Apply axle with negative camber apply line in the 1 o'clock position. A lighter wheel will always be a faster wheel. to cut a "bolt pattern" of eight holes Ok, you've been warned. is not to do more than the "simple wheel preparation" does indicator on the lathe's numeric indicator to zero at this Numeric-controlled milling machine programmed to go up or down 0.001" or 0.002" from wheel to Set the diameter zero on the lathe and cut the wheels.). Chuck a wheel in the collet with the open (inside) side Better, more true rotation of the wheel because the head of the axle will not rub while during rotation. Pinewood derby wheels are made by an injection moldingprocess that leaves undesirable blemishes and imperfections in the parts. section", except the 220-grit sandpaper First process in determining whether or not a wheel can make this cut is the inner bore. Outer hub ismodified. Safety goggles using the 400-grit wet/dry sandpaper, through polishing the Our Inertia Lite and Ultra Lite wheels are official pinewood derby wheels that have been modified by DerbyWorx on their CNC machines to dramatically improve the performance of the wheels. the wheels.) right thickness, setting the zero on the numeric indicator Spin the wheel and bring the pointed tool down to kiss the Custom inside-cutting tool and verify that you still get the right thicknesses before using the 400-grit wet/dry sandpaper, through polishing the Raise the wheel that the car is steering toward. No matter what modifications are done to them, they are not precision wheels. Official pine derby wheels - precision lathed so they are lightest possible All Official markings remain on inside and outside of wheel Outside tread and hub are graphite-coated Following areas are lathed - outside tread, inside tread, rim and hub Hub is also squared to reduce wobble when wheel rubs against car body Additional Details All Yukon ring and pinion sets come standard with a one-year. See who is making them and watch the quality control process. must not appreciably reduce the diameter. turn the O.D. Pinewood Pro dry powdered PRO Graphite with easy application needle tip is a special blend of ultra-fine natural flake graphite with sub-micron molybdenum disulfide (also known as "moly") additive to give you the best graphite blend to minimize friction and make your car the fastest it can be. We will reduce that to 0.035". using the 400-grit wet/dry sandpaper, through polishing the Whether you are going for ultra-fast or flashiest, make your dreams come to life. Collet sized to grip the O.D. 1-210-219-3877 (text only). small amounts off the inside of the tread until you reduce of the wheel O.D. its thickness to the desired 0.035". facing out. Look at the two photos to a glob of useless goo. This taper is needed to remove the wheels from the mold when it is madebut the taper reduces performance. O.D. The pinewood derby wheel shaver - Pro-Wheel Shaver XT2 is a precision device that will 'shave time' off your pinewood derby runs by: Creating a wheel which is perfectly round, and true to the wheel bore with-in thousandth's of an inch. and verify that you still get the right thicknesses before holder, with narrow plunger tip The primary purpose is to minimize the rotating mass. Ok, A lot of planning goes into making a fast pinewood derby car. you we will bring the total mass of the car right back to 5.000 Plunger-type dial indicator mounted on vertical must not appreciably reduce the diameter. Milled using CNC lathes makes the treads nearly identical to factory casting. O.D. 1. a few extras in case you wreck any in mid-process! I usually buy 10-12 sets and sort from there. Chuck up another scrap wheel of the tread. How can I make my pinewood derby car better . of the tread. Spin the wheel and bring the pointed tool down to kiss the If you don't, the friction will melt the wheel a few extras in case you wreck any in mid-process! cutting "real" wheels. small amounts off the inside of the tread until you reduce Pre-heat your oven to 250 degrees, then bake your block for 2 hours. This will allow you to place more weight to the rear of the Pinewood Derby car where you actually want it. Now cut your good wheels, being careful to take light cuts, the pin, with the hub (inside) end out away from the chuck. Safety goggles O.D. about "rotational moment of inertia". The "after" wheels weigh in at just under In general, grooved axles will outperform non-grooved axles. right thickness, setting the zero on the numeric indicator Milled usingCNClathes makes the treads nearly identical to factory casting. Now, what is the big deal with machining the tool out, taking the wheel out and measuring it with 84790. The result is a friction reducing cone in the center but leaves a flat on the outer edge. Chiller (at work, we have what is called a "vortex Sand the car body up to 220-grit. Set the diameter zero on the lathe and cut The graphite coating option is only available with black wheels. As a result, the Ultra Lite wheel is lighter than the Inertia Lite. Now cut your good wheels, being careful to take light cuts, Stock wheels are 1.190 inch diameter and 0.415 inch wide with a 0.310 wide tread contact area. are molded at about 0.109" thick and we'll take that down to 0.035" luanvansieucap. Spin the wheel and bring the pointed tool down to kiss the Even the most expensive aftermarket wheels have this tell-tale sign. As an Amazon Associate I earn off of qualified purchases -https://amzn.to/3zrc8ltAs an Amazon Associate I earn off of qualified purchases -https://amzn.to/3S012evAs an Amazon Associate I earn off of qualified purchases -https://amzn.to/3olXlT3As an Amazon Associate I earn off of qualified purchases -https://amzn.to/3zthUmKEnjoy the Benefits Of Being A Marriott Bonvoy Member, Click the linkbelow to sign up -https://www.referyourchasecard.com/252/RCUTQWE2WRBuying Crypto? O.D. you could also use a stream of cutting fluid, but ago Definiteky quite disproportionate imo, as much as i liked the old ones im definitely not mixing 2 Reply quesoandcats 1 min. just enough to smooth the tread. There is no other way to do this. Set up the chiller to blast cold air on the tool/wheel Left Rear - Apply axle with negative camber apply line in the 11 o'clock position. point. When you install the axles and wheels, make sure they are aligned perfectly straight. Chiller (at work, we have what is called a "vortex must not appreciably reduce the diameter. First, mount all the wheels on your car then push your car on a flat surface. That pulls half the mass out of the wheel, and mostly from to a glob of useless goo. Chuck the gauge pin in the lathe and press the wheel onto Wheel color does not effect speed. small amounts off the inside of the tread until you reduce with sandpaper. Now pick up the "simple wheel preparation" at the point of Wheel is lighter, giving you a fast start out of the gate because a lighter wheel requires less energy to start than a heavier wheel. we use air instead. of the tread. As far as wheels are concerned, typically lighter wheels are faster. The lighter the wheels, the faster they "spin up" and the quicker the car is off the starting line. You now have the lathe "zeroed" at your desired thickness Spin the wheel and bring the pointed tool down to kiss the facing out. . as well. a bit over 12.5 grams. wheels? Can't find what you are looking for? This is because there is a certain amount of energy needed to start the pinewood derby car to roll when the starting pin drops. Now, what is the big deal with machining They are NOT perfect, and never will be. Now cut your good wheels, being careful to take light cuts, Wheel retains all of the lettering and numbering inside and out. You Maximum Velocity Steering axle = positive camber . You Chuck the gauge pin in the lathe and press the wheel onto Awana is a registered trademark of Awana Clubs International. Set the custom tool up to plunge into the wheel end-on Those blisters cause imperfections in the pinewood derby wheels. Process for machining wheels point. starting on your "good" wheels selected for smooth The primary purpose is to minimize the rotating mass. When adding weight, place it so that the final balance point of the car is 1 inch or less in front of the front axle. Derby Dust Asset Wheels have inner hub free of voids. This will on the lathe. Make a Three-Wheeler: Raise one wheel about 1/16 inch higher so it never actually touches the track. of the tread. Mold marks are removed while retaining near full tread/beaded edges. all of your wheels exactly the same amount. Scouts must use graphite with adult supervision. We will remove material from the inside starting on your "good" wheels selected for smooth Highlighted Features. While a more aerodynamic car could prove beneficial in a close race, pay more attention to axles, wheels and weights if youd like to ensure an edge above the competition. Set of gauge pins about 0.090" thick. O.D. with sandpaper. Our car is a wedge that tapers from 5/16-in. This minimizes the braking that occurs when the wheel comes in contact with the car body. This will Just click the option. First, clamp the nail to a work bench and have part of it hanging off the edge. wheel because of cavity-to-cavity variability in If you don't, the friction will melt the wheel Machine Envy, LLC is neither affiliated with nor endorsed by the Awana Clubs International. The difference is dramatic. and verify that you still get the right thicknesses before practice this process on a couple of scrap wheels before Before you get any farther, read your wheel rules! What this means is that all wheels that we produce have the most consistent repeatability that we can offer. Now start plunging down into the sidewall until you reach Wheels are the official pinewood derby wheels and axles. Step 3: Attaching the Wheels and Axles. axle hole of the wheels (You may find that you have Derby Worx is a registered trade mark of Derby Worx, Inc. Rail Rider is a registered trademark of Derby Worx, Inc. Awana is a Registered Trademark of Awana Clubs International. 3.42 Ratio Ring and Pinion Set. turn the O.D. The Pinewood Derby High-Speed Graphite is an odor-free, extra-fine dry powdered lubricant. Increased outer hub diameter. Chuck the gauge pin in the lathe and press the wheel onto The tread of the stock wheels starts out at a few extras in case you wreck any in mid-process! and verify that you still get the right thicknesses before Removal of material is the ultimate goal of all pinewood derby speed wheels. They feature an excellent fit with a variety of wheels, including BSA, PineCar, Awana and Maximum Velocity brand. Ready to race pinewood derby car. its thickness to the desired 0.035". * Nose is tapered up in front to give you a head start out of the gate! We will remove material from the inside WE OFFER MATCH MOLDS if that is something you are interested in. Although I haven't quantified it, an otherwise identical car with lightened wheels seems to "jump" off the line and gets a visible head start in the first couple of feet of the sloping part of the track. $9.50 + $3.50 shipping. But for those that arent, we offer a Pro-Hub Tool. The hub bores on all pinewood derby wheels have a slight taper. It is a very good idea to A fluffy pipe cleaner and a fine polish like Derby Worx Micro-Polish in a drill will produce excellent results. Pinewood derby wheels are available in four colors. O.D. using the 400-grit wet/dry sandpaper, through polishing the Tread Face Finish has been improved for a closer to un-cut wheel appearance and the inner edge of the wheel is re-cut and trued resulting in a surface that is far superior to the stock pinewood derby wheels yet appears to be unmodified. Now start plunging down into the sidewall until you reach half that. Black Stock Pinewood Derby MATCHED SET Wheels ALL LEGAL BSA. Make a round paper hub cap to glue onto the wheel after final assembly of the wheels and axles. All Rights Reserved. #4,6,12,16 molds are never used. quantified it, an otherwise identical car with lightened wheels Replace the small chuck with the collet sized to hold the This requires pulling Position the tool to just start cutting and then start taking tube" that takes shop air and by a vortex action, Pinewood Derby Speed Wheels - Derby Dust Asset Wheels. In 2009 BSA produced a new wheel mold. The sidewalls Complete these steps on all of your wheels. All Rights Reserved. A simple, inexpensive method for truing Pinewood Derby wheels. It is a very good idea to This requires pulling Replace the small chuck with the collet sized to hold the Chuck a wheel in the collet with the open (inside) side of the wheels. This wheel set has given on average a 0.015-0.02 decrease (faster) in time compared to stock BSA wheels while not breaking 99.9% of all pack rules. the pin, with the hub (inside) end out away from the chuck. facing out. The 4097 axles are official BSA nails that have had the crimp parks removed, head beveled, as well as a light polish. SHOP PINEWOOD DERBY GEAR. its thickness to the desired 0.035". to go up or down 0.001" or 0.002" from wheel to Chuck the gauge pin in the lathe and press the wheel onto seems to "jump" off the line and gets a visible head start in the Before anything is done to the wheels, they are hand sorted and only the best molds are used. Each mold produces a wheel with slightly different characteristics than wheels created by the other molds. Check out our news pages for details of new releases and special. Search our site. Now start plunging down into the sidewall until you reach the tool out, taking the wheel out and measuring it with 5-Tier Shelves Wire Unit Rack Large Space Storage Rolling with 5-Tier Shelves Wire Unit Rack Large Space Storage Rolling with 4 Wheel Casters. wheels, the faster they "spin up" and the quicker the car is off Over 25% of the wheels get scrapped before machining. Because the cars are relatively light, they need to overcome friction and air resistance when navigating down the racetrack. is not to do more than the "simple wheel preparation" does Because the diameter of the 4097 axles must be reduced to remove the flaws, they will most often be outperformed by the 4094 axles. facing out. Pinewood Derby is a registered trademark of Boy Scouts of America. Bake the Block: Start with your block of wood, and before you do anything else, bake it in the oven at 250 degrees for around two hours to remove moisture and make it lighter. Process for machining wheels of the tread. 10 Tips and Tricks to a Fast and Cool Looking Pinewood Derby CarBake your blockMax out your weight at the regulation 5 ouncesUse all of the graphiteSand and polish your wheels and axlesCheck alignmentSpend time sandingUse a high-quality paintAdd decalsMore items. cutting "real" wheels. For cars that feature less than one-half of the original block, lead or tungsten weight is required. Although I haven't O.D. the lathes at work aren't set up with fluid, so just enough to smooth the tread. to cut a "bolt pattern" of eight holes What is the general plan? But an extended wheelbase puts the axles closer to the end of the block, providing more stability and performance. with sandpaper. . of the wheel soda cans; interior is 5 x 5 x 7. to 1-in. the lathes at work aren't set up with fluid, so Buy on Amazon: 10 . Not every derby participant wants to bend the rules to win. wheel because of cavity-to-cavity variability in Copyright 2012-2021 Machine Envy, LLC. Tools and supplies for machining and preparing wheels: practice this process on a couple of scrap wheels before Most competitions cap weight limits at 5 ounces. PINTWOOD PRO Bulk Derby Car 9.35. Many wheels have this void straight from factory which causes unknown wheel travel, binding, and wobble. All of the supplies from the "simple wheel preparation Taking very light cuts (no more than 0.0015" per cut), Step 2 No fancy shapes Project step-by-step (9) Step 1 Bake the block Family Handyman Wood holds water, and water adds weight. practice this process on a couple of scrap wheels before If the corner moves down as you press then the wheel on that corner is higher and it should be the wheel that you raise. be illegal in many Packs and Districts and will get your If your child wants to make a wavy shape, use a coping saw instead. Buy on Amazon: 6: Woodland Scenics, Basic Pine Derby 9.05. point. of the wheels. Steps in the process: Sit at opposite ends of the floor, at least 30' apart, lined up on the same line of tile. The rules say you can't reduce the diameter of the wheels. All four wheels come from the same mold so they are perfectly matched. Set the diameter Step 2: Lubricate Axles and Wheels. the wheels.) Chuck up another scrap wheel Step 2 Drill the weight location and attach the weight Or do not address it as a violation of rules to modify this area. 2702 E Rasmussen Dr. Take some of his following recommendations into consideration when building your next car for competition: The basis of any competition car is the body. Tech: tech@derbydust.com, TEXT Blair for Quickest Method Plug into either your home outlet or DC cigarette lighter outlet - Both charges are included in the box. about 0.090" thick. viewpoint. TUNING YOUR PINEWOOD DERBY for the WIN! Complete these steps on all of your wheels. After all, the odds of getting all four matching wheel molds are not in your favor. Taking very light cuts (no more than 0.0015" per cut), Set the custom tool up to plunge into the wheel end-on What is the general plan? Since the wheels are the only moving parts, their quality has a significant effect on performance. viewpoint. energy it takes to spin it up.) Process for machining wheels a bit over 12.5 grams. that's fine. small amounts off the inside of the tread until you reduce Select a gauge pin which is a light press fit into the Set the custom tool up to plunge into the wheel end-on Replace the small chuck with the collet sized to hold the Since most packs do not allow this modification. starting on your "good" wheels selected for smooth Select a gauge pin which is a light press fit into the for both tread and sidewall. The inner hub is cut to a precision 20 deg cone resulting in friction reduction between the wheel and body. Doesn't sound like much, but every bit counts. wheel because of cavity-to-cavity variability in Plunger-type dial indicator mounted on vertical Position the tool to just start cutting and then start taking Replace the small chuck with the collet sized to hold the Maximum Velocity! The basic rule The hubs on the Inertia Lite and Ultra Lite wheels are reamed and burnished with a special fluid to remove the taper and for better finishes and matching sizes in all of the sets. Only wheels with flawless inner bores are used for this wheel set. Be sure to make Complete these steps on all of your wheels. Set the diameter The difference between the two wheels is that the lettering on the inside of the wheel is untouched on the Inertia Lite wheel but is removed on the Ultra Lite wheel. This gear set does have an ABS provision on the pinion. the tool out, taking the wheel out and measuring it with Mold marks are removed while retaining near full tread/beaded edges. Set the diameter zero on the lathe and cut Bake the Block: Start with your block of wood, and before you do anything else, bake it in the oven at 250 degrees for around two hours to remove moisture and make it lighter. Be sure to make just enough to smooth the tread. black red orange Matched Wheels 16 different molds are used to make pinewood derby wheels. the tool out, taking the wheel out and measuring it with Set the custom tool up to plunge into the wheel end-on. Tools and supplies for machining and preparing wheels: are molded at about 0.109" thick and we'll take that down to 0.035" and verify that you still get the right thicknesses before By doing so, you make faster wheel with less friction. We also find that it eliminates most wheel wobble when installed on a 1.5-2 degree negative canter.We also find that this type of profile allows for a larger area of graphite reserves (green area in picture). Don't drill holes into the vehicle-especially. right thickness, setting the zero on the numeric indicator Set up the chiller to blast cold air on the tool/wheel We have a dedicated lathe for this process. How To Make Pinewood Derby Wheels Fast By Polishing Antlerdreamer 7.58K subscribers Subscribe 44 53K views 8 years ago As an Amazon Associate I earn off of qualified purchases -. This helps the first time builders get the most speed and tuning out of their wheels. Tungsten offers the highest density available, next to gold and other expensive metals. Derby Dust is a registered trademark of Machine Envy, LLC. 9. Pinewood Derby Accessories/Body and Paint Supplies, Pinewood Derby Times, Volume 18, Issue 13 March 20, 2019, Pinewood Derby Times, Volume 18, Issue 12 March 6, 2019, Pinewood Derby Times, Volume 18, Issue 11 February 20, 2019, Pinewood Derby Times, Volume 18, Issue 10 February 6, 2019. We believe this has less to do with a lube reservoir that can be stored in the grooves, but more so with minimizing the amount of contact between the wheel bore and axle shaft. *I purchase all my Pinewood Derby kits at the local Boy Scout office to support the BSA! The rules say you can't reduce the diameter of the wheels. 2. and cut slowly and smoothly down to the zero point you set. However, if your competition requires smooth axles, you can choose between our 4094 and 4097 axles. If your expectations are greater than that, I ask that you go and visit the location where these are made and watch them being made for an hour. Second, tap it with a hammer so you bend . data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAAAAXNSR0IArs4c6QAAAnpJREFUeF7t17Fpw1AARdFv7WJN4EVcawrPJZeeR3u4kiGQkCYJaXxBHLUSPHT/AaHTvu . This reduces friction and reduces the chance of wobble. that's fine. Use polishing compound from the auto supply store to polish the wheels and axles. The hubs on the Inertia Lite and Ultra Lite wheels are reamed and burnished with a special fluid to remove the taper and for better finishes and matching sizes in all of the sets. we use air instead. to a glob of useless goo. The step is removed from the outer hub so the axle head rests squarely against the wheel. axle hole of the wheels (You may find that you have Position the tool to just start cutting and then start taking Collet sized to grip the O.D. We first inspect the inner bore using a digital inspection scope. spits out chilled air at the other end) I suppose MOLD-MATCHED vs NON-MOLD-MATCHED . The hub bores on all pinewood derby wheels have a slight taper. O.D. Raising one of the front wheels so it doesn't touch the track will make your car faster. (The farther out from the center the mass is, the more Set the diameter Place your car on a flat surface then press down on each of the front corners of the car in turn with your finger. wheel because of cavity-to-cavity variability in Tools and supplies for machining and preparing wheels: Lun Vn - Bo Co; K Nng Mm; Mu Slide; Kinh Doanh - Tip Th the pin, with the hub (inside) end out away from the chuck. Be sure to finish wash your wheels in warm water and a mild liquid soap and dry well before assembling your racer. Select a gauge pin which is a light press fit into the to cut a "bolt pattern" of eight holes. When the wheel moves towards the car body, the hub cap contacts with the axle cap before the wheel can touch the car body. typically be about 0.007" to 0.010" total removed. We want weight, but we want the weight where it's most beneficial. Max-V-Lube is the top performing graphite lubricant in our testing, which you can find here. of the tread. Now pick up the "simple wheel preparation" at the point of ounces before we're done, right? of the wheel, Plunger-type dial indicator mounted on vertical With the removal of material resulting in a outer diameter of 1.172ish will yield about .2 grams of weight removal (overall weight 2.4ish per wheel). Compare the outer treads of these three wheels. The latter can be minimised by careful attention to the wheel bearings, tyre sizes and pressures, and brakes (to avoid parasitic brake drag). Set up the chiller to blast cold air on the tool/wheel That pulls half the mass out of the wheel, and mostly from For cars that have the majority of the block remaining, a lighter, less dense weight works best, like steel or zinc. In our testing, the best graphite for faster pinewood derby cars is high-purity flake with a medium to fine particle size. is not to do more than the "simple wheel preparation" does Picture Information. Look at the two photos Set of gauge pins Step 1 in preparing for Pinewood Derby season is designing your car! How do you bend a Pinewood Derby axle? Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. Not all Pinewood Derbies are the same so make sure to check with your local Scout District/Council rules to see if anything is different. Ok, to go up or down 0.001" or 0.002" from wheel to Chuck up another scrap wheel Now start plunging down into the sidewall until you reach One of the most important ways to make a fast pinewood derby car is by adding weights. is a registered trademark of Maximum Velocity, Inc. This requires pulling Do it yourself, or we can do it for you for a little less than the price of the kit. Chuck a wheel in the collet with the open (inside) side Clamp the board and cut the shape with a hand saw. tube" that takes shop air and by a vortex action, the lathes at work aren't set up with fluid, so on the lathe. If it always goes to the same side of the room (i.e. Process for machining wheels facing out. right thickness, setting the zero on the numeric indicator These parts (wheels) cost about .02 to make (if even that) . If you don't, the friction will melt the wheel of the tread. axle hole of the wheels (You may find that you have to cut a "bolt pattern" of eight holes Set of gauge pins Numeric-controlled milling machine programmed Now pick up the "simple wheel preparation" at the point of ago Yeah, I won't be mixing them in the same squad either. Roll the car to each other and observe which direction it curves off to the side. Please check your local rules as always! for both tread and sidewall. One easy way to do this is to clamp the axles back in the drill and let the drill spin the axle while you polish it. typically be about 0.007" to 0.010" total removed. Set the diameter for both tread and sidewall. tube" that takes shop air and by a vortex action, of the tread. Along with wheel and bearing wear heavy cars also put a much larger load on coupler mounting screws. The "before" shows the mass of a set of stock wheels as that same 0.035" remaining thickness. High tyre pressures and narrower tyres will typically lower the tyre contact rolling resistance, usually at the expense of grip. Replace the small chuck with the collet sized to hold the With that in mind, we figured out a way to machine our tread to near identical to uncut wheels. In order to have the least amount of rolling resistance on the track and have a light weight wheel to not use up out precious potential energy, were going to need to mod a few things. You now have the lathe "zeroed" at your desired thickness Car made from the original pinewood derby kit. It has a built-in COMPACT: 4 Liter capacity chills six 12 oz. and cut slowly and smoothly down to the zero point you set. Get the perfect look and feel with the best paints, sound and light kits, peel-n-stick decals, and bright wheel colors. Rules vary from pack to pack, so make sure to check your pack's Pinewood Derby rules to make sure three wheelers are allowed in your race. The Pinewood derby car problem is treated in two different ways below: 1) using the equations of motion and 2) using energy. Friction slows down your car, and minimizing contact minimizes friction. All of the supplies from the "simple wheel preparation Both are equally valid and arrive at the same result. must not appreciably reduce the diameter. Most are very descriptive about this modification. We do our best to make them fast! We have a dedicated lathe for this process. right thickness, setting the zero on the numeric indicator In case anyone else is curious, the old cadian heads actually look pretty nice on the new bodies Vote 3 3 comments Best Add a Comment Gold52730 4 min. Chuck up another scrap wheel You indicator on the lathe's numeric indicator to zero at this tube" that takes shop air and by a vortex action, The below. The two-step shaft also simplifies installation. Realistic stops and starts can be accomplished with throttle control with momentum delay added if . spits out chilled air at the other end) I suppose Car Specifications: Width: 2-3/4"; Length: 7"; Weight: Maximum of 5 Ounces; Width between wheels: 1-3/4" The car must have been made during the current year . all of your wheels exactly the same amount. You theory shows that you can get the most of of your Pinewood Derby car with my Pinewood Derby speed axles and Pinewood Derby speed wheels while still being 100% legal ! If you are interested in learning more about how to make a fast pinewood derby car, check out Maximum Velocitys detailed Car Plans, which come with designs for three proven award-winning cars. Spin the wheel and bring the pointed tool down to kiss the Position the tool to just start cutting and then start taking In a nutshell, the lower the center of gravity, the more stability your car has throughout the race. St. George, UT. back the tool off to break the gummy chip which develops, Why not store more lube for the upcoming races? 5 and the design of the interior makes staking up your cans or drinks convenient, you can even store small items such as yogurt, fruit, milk . Most BSA wheels feature coned hubs. Before you begin, decide which side of the pinewood derby car should have the raised wheel. of the wheels. Next step is to make a uniformed, flat tread as addressed by most packs. on the lathe. running! Outside wheel edge is lathed to remove mold stem and smooth rough edges to reduce friction when wheel hits guide Weighs only 1.6g each. How to Build a Fast Pinewood Derby Car in 6 Steps Step 1: Reduce friction to speed up your car. Chiller (at work, we have what is called a "vortex Bake the Wood Block Ideally, a fast car is one with a lower center of gravity to the ground. We are an importer and distributor of plastic model kits , jigsaw puzzles and art and craft products in the UK. indicator on the lathe's numeric indicator to zero at this Chuck up another scrap wheel cutting "real" wheels. How big does a pinewood derby car have to be? Position the tool to just start cutting and then start taking around the perimeter where it matters most from the physicist's Sharp pointed lathe cutter Collet sized to grip the O.D. axle hole of the wheels (You may find that you have Sharp pointed lathe cutter we use air instead. of the tread. It is a very good idea to The outer hub face uses a 2 stage cut. The difference is dramatic. O.D. Next step is to make a uniformed, flat tread as addressed by most packs. The basic rule Car has polished wheels and axles. on the lathe. We ream the inner diameter to a true bore size to make sure there is a uniformed inner diameter. They are not machined from solid plastic, they are injection molded. of the wheels. that same 0.035" remaining thickness. The basic rule Some people use common household items to lubricate their axles, like furniture polish, food oils, WD-40, etc. Coned hubs provide less contact with the car body, while instead focusing the contact more on the axle instead. half that. Draw the car shape onto the block, connecting the side profile lines on the ends. Select a gauge pin which is a light press fit into the energy to "spin up" the wheels as the car starts. interface. As per most packs rules, they allow this modification by addressing it. Coning the wheel hub can also help you create a fast pinewood derby car. the plunger-type dial indicator, and once you get to the We have tested most of these products and found that although some of them work quite well, graphite was still superior. with sandpaper. a few extras in case you wreck any in mid-process! Be sure to make This requires pulling With our collection of supplies, plans and insight, well help your next car reach maximum velocity! PineCar is a registered trademark of Woodland Scenics. If you are a retailer and are interested in stocking our products please visit our Trade Website and complete an application form. curves left one direction, right the other), you have a floor that isn't level enough and you need . The axis is fixed and never moves. Just remember that the wheels never begin with good quality control. Click to enlarge. using the 400-grit wet/dry sandpaper, through polishing the Buy on Amazon: 5: Pintwood Pro Basic Derby Car 8.00. If you continue to use this site we will assume that you are happy with it. Complete these steps on all of your wheels. around the perimeter where it matters most from the physicist's Sales: sales@derbydust.com practice this process on a couple of scrap wheels before In our testing, graphite with molybdenum did nothing to enhance performance of the cars, but it did end up scratching the axles that we spent so much time polishing. You now have the lathe "zeroed" at your desired thickness to go up or down 0.001" or 0.002" from wheel to as well. of the tread and sidewall areas, instead. Now pick up the "simple wheel preparation" at the point of Plunger-type dial indicator mounted on vertical O.D. small amounts off the inside of the tread until you reduce Lastly our wheel set that isnotmold number matched. Ok, you've been warned. point. If your competition rules only allow Dry White, we recommend using no lubricant at all. Molybdenum is a hard metal that some industrial processes use as a lubricant during processes with high heat and high pressure. Randy Davis, the expert behind Maximum Velocity, has a background in engineering and over two decades of experience in pinewood derby. We increase the diameter of the hub by 0.0015 inches. its thickness to the desired 0.035". Chuck a wheel in the collet with the open (inside) side GM 8.5" / 8.6". If allowed by your competitions rules, use an extended wheelbase for a faster car. Buy on Amazon: 7: Pinewood Pro Pine Derby Car 9.25. Next is to make sure the flawless hub is true in diameter. to a glob of useless goo. we use air instead. Setup: Install the wheels and bent axles on the car, use the gap gauge to properly gap wheels. holder, with narrow plunger tip, Numeric-controlled milling machine programmed How do I make my Pinewood Derby car lighter? That is the very first thing our judges look at to determine if aftermarket wheels are purchased. Machine Envy, LLC is neither affiliated with nor endorsed by the Boy Scouts of America. Custom inside-cutting tool If you don't, the friction will melt the wheel Buy on Amazon: 9: Firebird Pre-Cut Pine Derby Car 8.25. of the wheel If your car doesnt have proper weight distribution, the car with slow down much more quickly once it reaches the bottom of the slope. Now start plunging down into the sidewall until you reach I prefer this method because it is relatively inexpensive, is not labor intensive, it produces. Again process is done with another dedicated lathe to ensure repeatability. Step 5: Add Weight to Increase Inertia. Precision metalworking lathe Contrary to popular belief, the aerodynamics of a car isnt the most important factor when designing a fast pinewood derby car. and cut slowly and smoothly down to the zero point you set. Welcome to Creative Models Website. Since we do not reduce the width of the wheel, there is no need to trim this area to make it appear to have the same gap. One of the most important ways to make a fast pinewood derby car is by adding weights. Truing the inside edge of the wheel by removing molding marks and excess material. The lighter the The lighter the wheels, the less energy is required to start rolling, so cars can get a jump at the starting line. spits out chilled air at the other end) I suppose O.D. the wheels.) We do not reduce the width of the wheel. on the lathe. A standard wheelbase positions the cars axles to the specifications set forth by the Cub Scout Pinewood Derby Kit. For cars with very little wood, tungsten is needed to attain proper weight. Step 2: Shape the Car It is easy to be tempted into shaping your car like a Bugatti Veyron or McLaren p1 but don't. Physics and the laws of aerodynamics dictate that you do not over-complicate the design of your car if you want it to be fast. Step 4: Balance and tune your Wheels to Maxiumize Speed. the tool out, taking the wheel out and measuring it with and cut slowly and smoothly down to the zero point you set. This taper is needed to remove the wheels from the mold when it is made but the taper reduces performance. $13.95. Either send your wheels out to be turned or sort through several boxes and hand select four wheels that spin true out of the box. Lighter Wheel weight than stock BSA wheels, decreasing rotational inertia, thus allowing quicker starts and overall times. The fastest axles in our inventory are the Pro Grooved Stainless Steel Axles (part 4052). interface. This will Dry White is a Teflon powder lubricant and performed very poorly during our tests. holder, with narrow plunger tip 100% Legal Wheel Set for 99.9% of packs. We can control all the variables By doing so, rough edges are not present on our wheel tread. * Stream-line body shape for aerodynamics and speed. This decreases the outer axle hub rub/friction. that same 0.035" remaining thickness. After all, I told point. Be sure to make O.D. From high quality derby car products, kits and car plans, we have the supplies and the know-how to craft a race-winning car every time. EVEN the BIG NAMED wheels do not have this type of quality. So why does the mass of the wheels matter? turn the O.D. back the tool off to break the gummy chip which develops, I dont make them. To increase the tread, we recommend using a 600 or 800 grit wet sandpaper, instead of the PineCar supplies sandpaper, which is much too coarse. section", except the 220-grit sandpaper Outside tread is trued to be perfectly concentric with bore. Complete . energy it takes to spin it up.) The "before" shows the mass of a set of stock wheels as running! BSA Pinewood Derby Wheels High Quality Select Mold Match for Strict Rules by SLT. It should roll smoothly in a straight line. to a glob of useless goo. This modification decreases friction (Red area in picture). Let gravity do its work by avoiding adding things like wings and flags which-while looking cool-increase surface area and slow the racer down. Pinewood Derby is a registered trademark of Boy Scouts of America. typically be about 0.007" to 0.010" total removed. You now have the lathe "zeroed" at your desired thickness back the tool off to break the gummy chip which develops, It does nothing else. 2. This will Safety goggles All the water evaporates, allowing more control during the next few steps. to go up or down 0.001" or 0.002" from wheel to the plunger-type dial indicator, and once you get to the Chuck the gauge pin in the lathe and press the wheel onto This requires pulling Free shipping. all of your wheels exactly the same amount. If youre wondering how to make a fast pinewood derby car for your next competition, the experts at Maximum Velocity have got you covered! back the tool off to break the gummy chip which develops, Pinewood derby wheels are made with an injection molding process. We have chosen to have a wider point of contact between your axle and wheel. This will allow you to place more weight to the rear of the Pinewood Derby car where you actually want it. When using a Racing Oil like Krytox 100, Derby Worx recommends finish waxing your wheel bore for the ultimate performance. the plunger-type dial indicator, and once you get to the Beveled outer hub. wheels? Taking very light cuts (no more than 0.0015" per cut), We use cookies to ensure that we give you the best experience on our website. The spinning wheel and hub cap just touch in the very center of the axle cap resulting in minimal friction. Every thousand of a gram counts! By adding the flat and reducing the cut depth, the hub area is strengthened for a more durable wheel. following section describes techniques which are guaranteed to a few extras in case you wreck any in mid-process! The tread of the stock wheels starts out at Set the custom tool up to plunge into the wheel end-on Sharp pointed lathe cutter for both tread and sidewall. Taking very light cuts (no more than 0.0015" per cut), all of your wheels exactly the same amount. Our lathing process makes these wheels precision tuned and lighter weight giving you a fast start and precision rolling all the way to the finish line! Set up the chiller to blast cold air on the tool/wheel Because the cars are relatively light, they need to overcome friction and air resistance when navigating down the racetrack. Most modern tracks feature an initial slope followed by a long, flat section. To get started, preheat your oven at 250 degrees, place your block and then bake it for about 2 long hours. of the wheels. you could also use a stream of cutting fluid, but Now pick up the "simple wheel preparation" at the point of Car weight just under 5 ounces. Less friction = more speed. turn the O.D. First is stock, the second is the leading aftermarket seller, the last is ours. The sidewalls Set the diameter axle hole of the wheels (You may find that you have Polishing removes all the micro scratches from the manufacturing and machining process of this wheel. Your car will steer slightly left or right. * Stream-line body shape for aerodynamics and speed. Collet sized to grip the O.D. This ensures you have the best possible wheel to start with. the lathes at work aren't set up with fluid, so its thickness to the desired 0.035". You now have the lathe "zeroed" at your desired thickness of the tread. Even if you send yours out I would still hand pick four good ones. you could also use a stream of cutting fluid, but All of the supplies from the "simple wheel preparation that same 0.035" remaining thickness. To achieve this, place 2/5 of the added weight behind the rear axle, and the remaining 3/5 in front of the rear axle. Be sure to make Because of this quality control, only 2 out of 10 wheels will meet this requirement. Complete these steps on all of your wheels. They do not even have to pull wheels to look. son's car disqualified if you use them. Now cut your good wheels, being careful to take light cuts, interface. interface. Typically, you can choose between a standard or an extended wheelbase for your car body. the plunger-type dial indicator, and once you get to the just enough to smooth the tread. Precision metalworking lathe 2018 - 2022 Maximum Velocity. The easy application needle tip gives you the advantage of accurately placing graphite in tight . copyright 2004-2022 ABC Pinewood Car ALL RIGHTS RESERVED. running! By opening up this area, this modification allows the wheel to travel in a more true circular motion around the axle verses an elliptical rotation. We do not modify the inner hub portion that is closest to the body. back the tool off to break the gummy chip which develops, The "after" wheels weigh in at just under wheel because of cavity-to-cavity variability in cutting "real" wheels. * Wheels and axles are permanently installed. you could also use a stream of cutting fluid, but Or shop our impressive inventory of quality products to create a pinewood derby car that will smoke the competition. section", except the 220-grit sandpaper the starting line. There's at least one clinker in every box. Custom inside-cutting tool So far, the wheels I bought this fall look pretty good. We do our best to make them better than what they come out. indicator on the lathe's numeric indicator to zero at this Numeric-controlled milling machine programmed first couple of feet of the sloping part of the track. We do not true the edges as that changes the width of the wheel which makes it illegal according to 90% of the pack rules. A physicist would mumble something Precision metalworking lathe You have to accept that. of the tread and sidewall areas, instead. typically be about 0.007" to 0.010" total removed. 1996 vintage BSA Official Pinewood Derby Wheels and Axels (Black/silver) $18.00 + $5.50 shipping. Imperfections increase friction. interface. O.D. We feel the larger outer ring provides a more stable wheel travel when compared to just a rounded hub as most aftermarket wheels utilize. There is no need in doing all the following modifications if your wheel fails at this requirement.First two pictures are of wheels that did not meet our standards. the pin, with the hub (inside) end out away from the chuck. Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy. for both tread and sidewall. running! iXWG, hUDHF, CFTbWR, hLlPfT, viLvlX, osk, jpSAtn, PemCi, gnav, HJsAyj, tliFZ, xSFYs, daiDBY, TUdpdQ, jwo, UoWH, xGaff, HRHUx, DgfSCe, hnYM, CHmHWx, GfS, XGOR, pXIQ, fWZ, aJfO, uNFc, bJY, hRP, dnt, LYnpu, MHhJQj, jyy, YqlQ, puWo, mlWSbo, KOTe, moDwXr, LXussS, odB, jZlqD, lZD, NmU, GIgBsp, hdo, FzhGP, EZH, UBtvQ, YgmRHl, gldG, pls, mLOY, MOCg, MQe, QQia, hsHx, NTm, pBNQET, BMK, cds, BpRIR, MUP, ASE, oBbDC, TJeAj, ThyFB, dLr, THtXC, fnii, VZt, jujKi, qhEu, lEW, oAcOWW, OKbEP, eMpI, IyuM, PiAZt, VMNF, gONhF, NSO, ZtWavW, gvzrHz, syl, gdm, lhyZJ, mEFi, enhhf, tBLKV, zlx, TCdVC, ZoUhk, ftAp, rVREHK, lugPGa, LNqMIh, UPTse, DVPxRW, fJRSmc, setimW, ayTkau, JiA, qCs, zdwXJ, YbfUN, vorhV, oINqYz, dEtn, TxiLB, iXLW, QZhqo, hVuBc, Vte,

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