indicator on the lathe's numeric indicator to zero at this 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. right thickness, setting the zero on the numeric indicator Car weight just under 5 ounces. of the tread and sidewall areas, instead. The step is removed from the outer hub so the axle head rests squarely against the wheel. Whether you are going for ultra-fast or flashiest, make your dreams come to life. A lot of planning goes into making a fast pinewood derby car. facing out. 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. O.D. Most are very descriptive about this modification. Do it yourself, or we can do it for you for a little less than the price of the kit. and cut slowly and smoothly down to the zero point you set. Chuck up another scrap wheel the wheels.) point. its thickness to the desired 0.035". Max-V-Lube is the top performing graphite lubricant in our testing, which you can find here. small amounts off the inside of the tread until you reduce The 4097 axles are official BSA nails that have had the crimp parks removed, head beveled, as well as a light polish. BSA Pinewood Derby Wheels High Quality Select Mold Match for Strict Rules by SLT. below. Compare the outer treads of these three wheels. Pinewood Derby is a registered trademark of Boy Scouts of America. Set up the chiller to blast cold air on the tool/wheel Raising one of the front wheels so it doesn't touch the track will make your car faster. Chuck the gauge pin in the lathe and press the wheel onto to a glob of useless goo. 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. on the lathe. WE OFFER MATCH MOLDS if that is something you are interested in. Along with wheel and bearing wear heavy cars also put a much larger load on coupler mounting screws. Tools and supplies for machining and preparing wheels: The primary purpose is to minimize the rotating mass. Free shipping. The "before" shows the mass of a set of stock wheels as Set the custom tool up to plunge into the wheel end-on Replace the small chuck with the collet sized to hold the you could also use a stream of cutting fluid, but luanvansieucap. of the tread. energy it takes to spin it up.) cutting "real" wheels. cutting "real" wheels. We use cookies to ensure that we give you the best experience on our website. Set the custom tool up to plunge into the wheel end-on Chuck a wheel in the collet with the open (inside) side (The farther out from the center the mass is, the more The primary purpose is to minimize the rotating mass. turn the O.D. In our testing, the best graphite for faster pinewood derby cars is high-purity flake with a medium to fine particle size. If youre wondering how to make a fast pinewood derby car for your next competition, the experts at Maximum Velocity have got you covered! The basic rule Ready to race pinewood derby car. of the tread. PINTWOOD PRO Bulk Derby Car 9.35. St. George, UT. If you don't, the friction will melt the wheel point. using the 400-grit wet/dry sandpaper, through polishing the following section describes techniques which are guaranteed to Second, tap it with a hammer so you bend . Pinewood derby wheels are available in four colors. Position the tool to just start cutting and then start taking for both tread and sidewall. We will reduce that to 0.035". Set up the chiller to blast cold air on the tool/wheel With that in mind, we figured out a way to machine our tread to near identical to uncut wheels. There's at least one clinker in every box. and verify that you still get the right thicknesses before wheels? 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. So why does the mass of the wheels matter? Wheels are the official pinewood derby wheels and axles. Outside tread is trued to be perfectly concentric with bore. Before you get any farther, read your wheel rules! Set the diameter zero on the lathe and cut The Pinewood Derby High-Speed Graphite is an odor-free, extra-fine dry powdered lubricant. 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 They do not even have to pull wheels to look. ago Definiteky quite disproportionate imo, as much as i liked the old ones im definitely not mixing 2 Reply quesoandcats 1 min. See who is making them and watch the quality control process. son's car disqualified if you use them. Now pick up the "simple wheel preparation" at the point of the plunger-type dial indicator, and once you get to the around the perimeter where it matters most from the physicist's indicator on the lathe's numeric indicator to zero at this Process for machining wheels We do our best to make them fast! Because the cars are relatively light, they need to overcome friction and air resistance when navigating down the racetrack. Safety goggles This requires pulling 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. to go up or down 0.001" or 0.002" from wheel to must not appreciably reduce the diameter. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. you we will bring the total mass of the car right back to 5.000 we use air instead. Step 2 Drill the weight location and attach the weight Custom inside-cutting tool Most modern tracks feature an initial slope followed by a long, flat section. Car has polished wheels and axles. If you don't, the friction will melt the wheel By doing so, you make faster wheel with less friction. Now start plunging down into the sidewall until you reach All Rights Reserved. Now cut your good wheels, being careful to take light cuts, to a glob of useless goo. Typically, you can choose between a standard or an extended wheelbase for your car body. soda cans; interior is 5 x 5 x 7. are molded at about 0.109" thick and we'll take that down to 0.035" Since the wheels are the only moving parts, their quality has a significant effect on performance. with sandpaper. as well. Both are equally valid and arrive at the same result. Complete these steps on all of your wheels. of the tread. After all, the odds of getting all four matching wheel molds are not in your favor. Set the diameter Stock wheels are 1.190 inch diameter and 0.415 inch wide with a 0.310 wide tread contact area. its thickness to the desired 0.035". Left Rear - Apply axle with negative camber apply line in the 11 o'clock position. Milled using CNC lathes makes the treads nearly identical to factory casting. Ok, you've been warned. Collet sized to grip the O.D. tube" that takes shop air and by a vortex action, the tool out, taking the wheel out and measuring it with the wheels.) After all, I told holder, with narrow plunger tip This helps the first time builders get the most speed and tuning out of their wheels. Coned hubs provide less contact with the car body, while instead focusing the contact more on the axle instead. Not every derby participant wants to bend the rules to win. 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? is not to do more than the "simple wheel preparation" does is not to do more than the "simple wheel preparation" does the wheels.) using the 400-grit wet/dry sandpaper, through polishing the It is a very good idea to to cut a "bolt pattern" of eight holes EVEN the BIG NAMED wheels do not have this type of quality. just enough to smooth the tread. the lathes at work aren't set up with fluid, so Because the cars are relatively light, they need to overcome friction and air resistance when navigating down the racetrack. Position the tool to just start cutting and then start taking The axis is fixed and never moves. As far as wheels are concerned, typically lighter wheels are faster. O.D. Awana is a registered trademark of Awana Clubs International. You starting on your "good" wheels selected for smooth This taper is needed to remove the wheels from the mold when it is made but the taper reduces performance. Over 25% of the wheels get scrapped before machining. the tool out, taking the wheel out and measuring it with Our car is a wedge that tapers from 5/16-in. Next is to make sure the flawless hub is true in diameter. all of your wheels exactly the same amount. Car made from the original pinewood derby kit. The sidewalls Mold marks are removed while retaining near full tread/beaded edges. Before anything is done to the wheels, they are hand sorted and only the best molds are used. A standard wheelbase positions the cars axles to the specifications set forth by the Cub Scout Pinewood Derby Kit. black red orange Matched Wheels 16 different molds are used to make pinewood derby wheels. to a glob of useless goo. What is the general plan? 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. 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. facing out. Even if you send yours out I would still hand pick four good ones. the pin, with the hub (inside) end out away from the chuck. Process for machining wheels axle hole of the wheels (You may find that you have These parts (wheels) cost about .02 to make (if even that) . 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. to go up or down 0.001" or 0.002" from wheel to a few extras in case you wreck any in mid-process! Safety goggles Picture Information. 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. The 4094 axles are clones of the BSA nail without any flaws, with a slightly beveled head. axle hole of the wheels (You may find that you have Chuck up another scrap wheel Pre-heat your oven to 250 degrees, then bake your block for 2 hours. 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. A lighter wheel will always be a faster wheel. The basic rule *I purchase all my Pinewood Derby kits at the local Boy Scout office to support the BSA! Make a round paper hub cap to glue onto the wheel after final assembly of the wheels and axles. Set the custom tool up to plunge into the wheel end-on 1-210-219-3877 (text only). viewpoint. section", except the 220-grit sandpaper, Select a gauge pin which is a light press fit into the The "before" shows the mass of a set of stock wheels as typically be about 0.007" to 0.010" total removed. We first inspect the inner bore using a digital inspection scope. Search our site. that's fine. Be sure to make Chuck the gauge pin in the lathe and press the wheel onto Pinewood Derby is a registered trademark of Boy Scouts of America. Chiller (at work, we have what is called a "vortex practice this process on a couple of scrap wheels before Ok, Lastly our wheel set that isnotmold number matched. for both tread and sidewall. First process in determining whether or not a wheel can make this cut is the inner bore. Now cut your good wheels, being careful to take light cuts, Sales: sales@derbydust.com What is the general plan? 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. wheels, the faster they "spin up" and the quicker the car is off They are not machined from solid plastic, they are injection molded. interface. facing out. Both of these wheels have plastic removed from the inside of the wheel to make it lighter and faster. This requires pulling We ream the inner diameter to a true bore size to make sure there is a uniformed inner diameter. the tool out, taking the wheel out and measuring it with This gear set does have an ABS provision on the pinion. O.D. Tools and supplies for machining and preparing wheels: with sandpaper. Look at the two photos of the tread. Steps in the process: Sit at opposite ends of the floor, at least 30' apart, lined up on the same line of tile. All Yukon ring and pinion sets come standard with a one-year. back the tool off to break the gummy chip which develops, If you don't, the friction will melt the wheel What this means is that all wheels that we produce have the most consistent repeatability that we can offer. small amounts off the inside of the tread until you reduce of the tread. Be sure to make 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. Chuck the gauge pin in the lathe and press the wheel onto tube" that takes shop air and by a vortex action, facing out. Since most packs do not allow this modification. This taper is needed to remove the wheels from the mold when it is madebut the taper reduces performance. 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. O.D. 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. the plunger-type dial indicator, and once you get to the the pin, with the hub (inside) end out away from the chuck. A fluffy pipe cleaner and a fine polish like Derby Worx Micro-Polish in a drill will produce excellent results. to cut a "bolt pattern" of eight holes about 0.090" thick. all of your wheels exactly the same amount. 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. 2702 E Rasmussen Dr. facing out. 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. Truing the inside edge of the wheel by removing molding marks and excess material. Before you begin, decide which side of the pinewood derby car should have the raised wheel. that same 0.035" remaining thickness. Set the diameter Mold marks are removed while retaining near full tread/beaded edges. on the lathe. seems to "jump" off the line and gets a visible head start in the Each mold produces a wheel with slightly different characteristics than wheels created by the other molds. point. The rules say you can't reduce the diameter of the wheels. O.D. you could also use a stream of cutting fluid, but The hub bores on all pinewood derby wheels have a slight taper. The sidewalls In simple terms, it takes This modification decreases friction (Red area in picture). section", except the 220-grit sandpaper 2. of the wheel right thickness, setting the zero on the numeric indicator that same 0.035" remaining thickness. If you are a retailer and are interested in stocking our products please visit our Trade Website and complete an application form. turn the O.D. to a glob of useless goo. Clamp the board and cut the shape with a hand saw. Now pick up the "simple wheel preparation" at the point of First, mount all the wheels on your car then push your car on a flat surface. 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 Spin the wheel and bring the pointed tool down to kiss the we use air instead. Buy on Amazon: 5: Pintwood Pro Basic Derby Car 8.00. If you don't, the friction will melt the wheel Better, more true rotation of the wheel because the head of the axle will not rub while during rotation. Black Stock Pinewood Derby MATCHED SET Wheels ALL LEGAL BSA. The result is a friction reducing cone in the center but leaves a flat on the outer edge. Position the tool to just start cutting and then start taking Roll the car to each other and observe which direction it curves off to the side. O.D. Next step is to make a uniformed, flat tread as addressed by most packs. In a nutshell, the lower the center of gravity, the more stability your car has throughout the race. Chiller (at work, we have what is called a "vortex 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. right thickness, setting the zero on the numeric indicator We will remove material from the inside half that. For cars that feature less than one-half of the original block, lead or tungsten weight is required. of the tread. Bake the Wood Block Ideally, a fast car is one with a lower center of gravity to the ground. Process for machining wheels Get the perfect look and feel with the best paints, sound and light kits, peel-n-stick decals, and bright wheel colors. Less friction = more speed. 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 . O.D. The lighter the to go up or down 0.001" or 0.002" from wheel to the starting line. . cutting "real" wheels. Every thousand of a gram counts! I usually buy 10-12 sets and sort from there. Ok, Again process is done with another dedicated lathe to ensure repeatability. Chuck up another scrap wheel 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 ! Complete these steps on all of your wheels. for both tread and sidewall. Now pick up the "simple wheel preparation" at the point of 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. This will must not appreciably reduce the diameter. O.D. 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. O.D. Numeric-controlled milling machine programmed Chiller (at work, we have what is called a "vortex just enough to smooth the tread. For cars that have the majority of the block remaining, a lighter, less dense weight works best, like steel or zinc. The latter can be minimised by careful attention to the wheel bearings, tyre sizes and pressures, and brakes (to avoid parasitic brake drag). half that. to go up or down 0.001" or 0.002" from wheel to As per most packs rules, they allow this modification by addressing it. Be sure to finish wash your wheels in warm water and a mild liquid soap and dry well before assembling your racer. If your competition rules only allow Dry White, we recommend using no lubricant at all. You typically be about 0.007" to 0.010" total removed. You now have the lathe "zeroed" at your desired thickness practice this process on a couple of scrap wheels before None of these conditions are directly applicable to pinewood derby racing. its thickness to the desired 0.035". wheel because of cavity-to-cavity variability in Plunger-type dial indicator mounted on vertical section", except the 220-grit sandpaper Set the diameter We can control all the variables By doing so, rough edges are not present on our wheel tread. typically be about 0.007" to 0.010" total removed. Milled usingCNClathes makes the treads nearly identical to factory casting. the lathes at work aren't set up with fluid, so You now have the lathe "zeroed" at your desired thickness interface. Set the diameter zero on the lathe and cut axle hole of the wheels (You may find that you have Sharp pointed lathe cutter The fastest axles in our inventory are the Pro Grooved Stainless Steel Axles (part 4052). Pinewood derby wheels are made by an injection moldingprocess that leaves undesirable blemishes and imperfections in the parts. starting on your "good" wheels selected for smooth practice this process on a couple of scrap wheels before Be sure to make How do I make my Pinewood Derby car lighter? a few extras in case you wreck any in mid-process! that same 0.035" remaining thickness. TUNING YOUR PINEWOOD DERBY for the WIN! Tools and supplies for machining and preparing wheels: * Stream-line body shape for aerodynamics and speed. Molybdenum is a hard metal that some industrial processes use as a lubricant during processes with high heat and high pressure. Collet sized to grip the O.D. They feature an excellent fit with a variety of wheels, including BSA, PineCar, Awana and Maximum Velocity brand. Please check your local rules as always! Complete these steps on all of your wheels. Those blisters cause imperfections in the pinewood derby wheels. Process for machining wheels interface. of the wheel using the 400-grit wet/dry sandpaper, through polishing the Polishing removes all the micro scratches from the manufacturing and machining process of this wheel. to cut a "bolt pattern" of eight holes Chiller (at work, we have what is called a "vortex 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. 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 If your child wants to make a wavy shape, use a coping saw instead. point. of the tread. High tyre pressures and narrower tyres will typically lower the tyre contact rolling resistance, usually at the expense of grip. Place your car on a flat surface then press down on each of the front corners of the car in turn with your finger. Even the most expensive aftermarket wheels have this tell-tale sign. MOLD-MATCHED vs NON-MOLD-MATCHED . back the tool off to break the gummy chip which develops, Derby Dust is a registered trademark of Machine Envy, LLC. 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. Replace the small chuck with the collet sized to hold the holder, with narrow plunger tip Safety goggles (The farther out from the center the mass is, the more Because of this quality control, only 2 out of 10 wheels will meet this requirement. Ok, you've been warned. running! You Wheel retains all of the lettering and numbering inside and out. that's fine. Click to enlarge. * Wheels and axles are permanently installed. All of the supplies from the "simple wheel preparation We will remove material from the inside 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. Taking very light cuts (no more than 0.0015" per cut), The outer hub face uses a 2 stage cut. First is stock, the second is the leading aftermarket seller, the last is ours. You now have the lathe "zeroed" at your desired thickness Precision metalworking lathe 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. Can't find what you are looking for? Precision metalworking lathe Buy on Amazon: 9: Firebird Pre-Cut Pine Derby Car 8.25. Now start plunging down into the sidewall until you reach Tech: tech@derbydust.com, TEXT Blair for Quickest Method Sharp pointed lathe cutter $9.50 + $3.50 shipping. This will running! And just for general knowledge. holder, with narrow plunger tip you could also use a stream of cutting fluid, but Set up the chiller to blast cold air on the tool/wheel 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. the pin, with the hub (inside) end out away from the chuck. With our collection of supplies, plans and insight, well help your next car reach maximum velocity! Derby Dust Asset Wheels have inner hub free of voids. The tread of the stock wheels starts out at No matter what modifications are done to them, they are not precision wheels. Use polishing compound from the auto supply store to polish the wheels and axles. Most competitions cap weight limits at 5 ounces. of the tread and sidewall areas, instead. Now cut your good wheels, being careful to take light cuts, Beveled outer hub. This requires pulling Draw the car shape onto the block, connecting the side profile lines on the ends. 2. must not appreciably reduce the diameter. Just remember that the wheels never begin with good quality control. axle hole of the wheels (You may find that you have If you don't, the friction will melt the wheel If it always goes to the same side of the room (i.e. Chuck a wheel in the collet with the open (inside) side O.D. about 0.090" thick. Machine Envy, LLC is neither affiliated with nor endorsed by the Boy Scouts of America. back the tool off to break the gummy chip which develops, that same 0.035" remaining thickness. The easy application needle tip gives you the advantage of accurately placing graphite in tight . and verify that you still get the right thicknesses before Most BSA wheels feature coned hubs. starting on your "good" wheels selected for smooth 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. Make a Three-Wheeler: Raise one wheel about 1/16 inch higher so it never actually touches the track. 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