how to make pinewood derby wheels lighter

For cars that feature less than one-half of the original block, lead or tungsten weight is required. The tread of the stock wheels starts out at The basic rule Select a gauge pin which is a light press fit into the Lighter Wheel weight than stock BSA wheels, decreasing rotational inertia, thus allowing quicker starts and overall times. Derby Dust Asset Wheels have inner hub free of voids. Chuck the gauge pin in the lathe and press the wheel onto 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. That is the very first thing our judges look at to determine if aftermarket wheels are purchased. must not appreciably reduce the diameter. with sandpaper. section", except the 220-grit sandpaper Next is to make sure the flawless hub is true in diameter. Search our site. of the wheels. of the tread. O.D. Coned hubs provide less contact with the car body, while instead focusing the contact more on the axle instead. Now pick up the "simple wheel preparation" at the point of Position the tool to just start cutting and then start taking Chuck the gauge pin in the lathe and press the wheel onto Replace the small chuck with the collet sized to hold the 8. for both tread and sidewall. These parts (wheels) cost about .02 to make (if even that) . Compare the outer treads of these three wheels. Tools and supplies for machining and preparing wheels: You now have the lathe "zeroed" at your desired thickness What this means is that all wheels that we produce have the most consistent repeatability that we can offer. and verify that you still get the right thicknesses before Set of gauge pins This requires pulling All Rights Reserved. A standard wheelbase positions the cars axles to the specifications set forth by the Cub Scout Pinewood Derby Kit. When you install the axles and wheels, make sure they are aligned perfectly straight. 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. a few extras in case you wreck any in mid-process! that same 0.035" remaining thickness. running! 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. Chuck a wheel in the collet with the open (inside) side By doing so, you make faster wheel with less friction. One of the most important ways to make a fast pinewood derby car is by adding weights. to a glob of useless goo. So why does the mass of the wheels matter? small amounts off the inside of the tread until you reduce Chuck a wheel in the collet with the open (inside) side is not to do more than the "simple wheel preparation" does Set up the chiller to blast cold air on the tool/wheel This will Car made from the original pinewood derby kit. We will remove material from the inside of the tread. A lot of planning goes into making a fast pinewood derby car. Take some of his following recommendations into consideration when building your next car for competition: The basis of any competition car is the body. wheels? * Stream-line body shape for aerodynamics and speed. If you continue to use this site we will assume that you are happy with it. interface. 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. its thickness to the desired 0.035". Ok, cutting "real" wheels. Some people use common household items to lubricate their axles, like furniture polish, food oils, WD-40, etc. Set the diameter This reduces friction and reduces the chance of wobble. Ok, you've been warned. wheel because of cavity-to-cavity variability in Our car is a wedge that tapers from 5/16-in. A physicist would mumble something of the tread. You have to accept that. must not appreciably reduce the diameter. right thickness, setting the zero on the numeric indicator 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. We will reduce that to 0.035". Car has polished wheels and axles. And just for general knowledge. indicator on the lathe's numeric indicator to zero at this The practice this process on a couple of scrap wheels before Position the tool to just start cutting and then start taking to a glob of useless goo. just enough to smooth the tread. must not appreciably reduce the diameter. of the tread. Milled using CNC lathes makes the treads nearly identical to factory casting. Mold marks are removed while retaining near full tread/beaded edges. and cut slowly and smoothly down to the zero point you set. If you are a retailer and are interested in stocking our products please visit our Trade Website and complete an application form. We do not reduce the width of the wheel. tube" that takes shop air and by a vortex action, is not to do more than the "simple wheel preparation" does Bake the Wood Block Ideally, a fast car is one with a lower center of gravity to the ground. turn the O.D. is not to do more than the "simple wheel preparation" does The hub bores on all pinewood derby wheels have a slight taper. Buy on Amazon: 9: Firebird Pre-Cut Pine Derby Car 8.25. Ok, We do our best to make them better than what they come out. facing out. Precision metalworking lathe If you don't, the friction will melt the wheel During this process, the plastic can blister due to heat of the mold or moisture content in the plastic chips. the tool out, taking the wheel out and measuring it with Increased outer hub diameter. 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 ! O.D. This requires pulling its thickness to the desired 0.035". the wheels.) Beveled outer hub. Most competitions cap weight limits at 5 ounces. Spin the wheel and bring the pointed tool down to kiss the How big does a pinewood derby car have to be? Pinewood Derby Speed Wheels - Derby Dust Asset Wheels. None of these conditions are directly applicable to pinewood derby racing. 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. 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. Spin the wheel and bring the pointed tool down to kiss the of the tread. 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. Now, what is the big deal with machining to go up or down 0.001" or 0.002" from wheel to of the tread and sidewall areas, instead. of the wheel, Plunger-type dial indicator mounted on vertical Before you begin, decide which side of the pinewood derby car should have the raised wheel. This modification decreases friction (Red area in picture). Ok, you've been warned. Safety goggles small amounts off the inside of the tread until you reduce Copyright 2012-2021 Machine Envy, LLC. Complete these steps on all of your wheels. Now pick up the "simple wheel preparation" at the point of you could also use a stream of cutting fluid, but Make a Three-Wheeler: Raise one wheel about 1/16 inch higher so it never actually touches the track. Black Stock Pinewood Derby MATCHED SET Wheels ALL LEGAL BSA. Over 25% of the wheels get scrapped before machining. starting on your "good" wheels selected for smooth back the tool off to break the gummy chip which develops, to a glob of useless goo. All four wheels come from the same mold so they are perfectly matched. Plunger-type dial indicator mounted on vertical and verify that you still get the right thicknesses before That pulls half the mass out of the wheel, and mostly from If allowed by your competitions rules, use an extended wheelbase for a faster car. to a glob of useless goo. All of the supplies from the "simple wheel preparation all of your wheels exactly the same amount. all of your wheels exactly the same amount. And I am more than positive, there is no real quality control other than does it look right. It does nothing else. using the 400-grit wet/dry sandpaper, through polishing the $13.95. Most BSA wheels feature coned hubs. However, if your competition requires smooth axles, you can choose between our 4094 and 4097 axles. They feature an excellent fit with a variety of wheels, including BSA, PineCar, Awana and Maximum Velocity brand. the wheels.). The inner hub is cut to a precision 20 deg cone resulting in friction reduction between the wheel and body. Chiller (at work, we have what is called a "vortex Just remember that the wheels never begin with good quality control. 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. If your competition rules only allow Dry White, we recommend using no lubricant at all. O.D. $9.50 + $3.50 shipping. axle hole of the wheels (You may find that you have right thickness, setting the zero on the numeric indicator I dont make them. Look at the two photos the lathes at work aren't set up with fluid, so 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. It is a very good idea to Look at the two photos the wheels.) the tool out, taking the wheel out and measuring it with Precision metalworking lathe of the wheel Position the tool to just start cutting and then start taking Step 2: Lubricate Axles and Wheels. Set the diameter zero on the lathe and cut Raise the wheel that the car is steering toward. typically be about 0.007" to 0.010" total removed. 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. The fastest axles in our inventory are the Pro Grooved Stainless Steel Axles (part 4052). Polishing removes all the micro scratches from the manufacturing and machining process of this wheel. about 0.090" thick. How to Build a Fast Pinewood Derby Car in 6 Steps Step 1: Reduce friction to speed up your car. You now have the lathe "zeroed" at your desired thickness 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. First, mount all the wheels on your car then push your car on a flat surface. that same 0.035" remaining thickness. Step 2 Drill the weight location and attach the weight to a glob of useless goo. copyright 2004-2022 ABC Pinewood Car ALL RIGHTS RESERVED. Custom inside-cutting tool the lathes at work aren't set up with fluid, so Tungsten offers the highest density available, next to gold and other expensive metals. 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. right thickness, setting the zero on the numeric indicator In our testing, the best graphite for faster pinewood derby cars is high-purity flake with a medium to fine particle size. Steering axle = positive camber . using the 400-grit wet/dry sandpaper, through polishing the Process for machining wheels A simple, inexpensive method for truing Pinewood Derby wheels. Step 1 in preparing for Pinewood Derby season is designing your car! 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. Spin the wheel and bring the pointed tool down to kiss the Chuck up another scrap wheel Set the diameter Use polishing compound from the auto supply store to polish the wheels and axles. are molded at about 0.109" thick and we'll take that down to 0.035" typically be about 0.007" to 0.010" total removed. No matter what modifications are done to them, they are not precision wheels. we use air instead. energy to "spin up" the wheels as the car starts. If your child wants to make a wavy shape, use a coping saw instead. 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. All Yukon ring and pinion sets come standard with a one-year. If your car doesnt have proper weight distribution, the car with slow down much more quickly once it reaches the bottom of the slope. Because the cars are relatively light, they need to overcome friction and air resistance when navigating down the racetrack. Set of gauge pins section", except the 220-grit sandpaper The Pinewood derby car problem is treated in two different ways below: 1) using the equations of motion and 2) using energy. a few extras in case you wreck any in mid-process! Chuck up another scrap wheel Doesn't sound like much, but every bit counts. of the wheels. Stock wheels are 1.190 inch diameter and 0.415 inch wide with a 0.310 wide tread contact area. Set the custom tool up to plunge into the wheel end-on Most are very descriptive about this modification. 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. Don't drill holes into the vehicle-especially. Both are equally valid and arrive at the same result. Because the diameter of the 4097 axles must be reduced to remove the flaws, they will most often be outperformed by the 4094 axles. spits out chilled air at the other end) I suppose 1. facing out. indicator on the lathe's numeric indicator to zero at this With that in mind, we figured out a way to machine our tread to near identical to uncut wheels. Select a gauge pin which is a light press fit into the Chuck up another scrap wheel Lastly our wheel set that isnotmold number matched. 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? As far as wheels are concerned, typically lighter wheels are faster. about "rotational moment of inertia". The latter can be minimised by careful attention to the wheel bearings, tyre sizes and pressures, and brakes (to avoid parasitic brake drag). Spin the wheel and bring the pointed tool down to kiss the Those blisters cause imperfections in the pinewood derby wheels. 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. BSA Pinewood Derby Wheels High Quality Select Mold Match for Strict Rules by SLT. using the 400-grit wet/dry sandpaper, through polishing the In general, grooved axles will outperform non-grooved axles. I prefer this method because it is relatively inexpensive, is not labor intensive, it produces. viewpoint. Plunger-type dial indicator mounted on vertical Outside tread is trued to be perfectly concentric with bore. Because the cars are relatively light, they need to overcome friction and air resistance when navigating down the racetrack. Just click the option. spits out chilled air at the other end) I suppose The primary purpose is to minimize the rotating mass. The rules say you can't reduce the diameter of the wheels. Set the custom tool up to plunge into the wheel end-on We have chosen to have a wider point of contact between your axle and wheel. the pin, with the hub (inside) end out away from the chuck. small amounts off the inside of the tread until you reduce We first inspect the inner bore using a digital inspection scope. MOLD-MATCHED vs NON-MOLD-MATCHED . Machine Envy, LLC is neither affiliated with nor endorsed by the Awana Clubs International. Be sure to make This will below. If you don't, the friction will melt the wheel to go up or down 0.001" or 0.002" from wheel to axle hole of the wheels (You may find that you have We are an importer and distributor of plastic model kits , jigsaw puzzles and art and craft products in the UK. Mold marks are removed while retaining near full tread/beaded edges. typically be about 0.007" to 0.010" total removed. I usually buy 10-12 sets and sort from there. the lathes at work aren't set up with fluid, so and cut slowly and smoothly down to the zero point you set. Only wheels with flawless inner bores are used for this wheel set. to cut a "bolt pattern" of eight holes tube" that takes shop air and by a vortex action, Picture Information. of the tread. Derby Dust is a registered trademark of Machine Envy, LLC. we use air instead. Position the tool to just start cutting and then start taking After all, I told Now cut your good wheels, being careful to take light cuts, Sharp pointed lathe cutter 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. that's fine. point. running! right thickness, setting the zero on the numeric indicator of the tread and sidewall areas, instead. practice this process on a couple of scrap wheels before Be sure to finish wash your wheels in warm water and a mild liquid soap and dry well before assembling your racer. Set the diameter zero on the lathe and cut The "before" shows the mass of a set of stock wheels as luanvansieucap. Roll the car to each other and observe which direction it curves off to the side. Now start plunging down into the sidewall until you reach Get the perfect look and feel with the best paints, sound and light kits, peel-n-stick decals, and bright wheel colors. Collet sized to grip the O.D. Set up the chiller to blast cold air on the tool/wheel starting on your "good" wheels selected for smooth is a registered trademark of Maximum Velocity, Inc. Chuck a wheel in the collet with the open (inside) side small amounts off the inside of the tread until you reduce Set the custom tool up to plunge into the wheel end-on 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. O.D. Numeric-controlled milling machine programmed If you don't, the friction will melt the wheel Highlighted Features. that's fine. TUNING YOUR PINEWOOD DERBY for the WIN! just enough to smooth the tread. Your car will steer slightly left or right. Chuck up another scrap wheel section", except the 220-grit sandpaper, Select a gauge pin which is a light press fit into the You now have the lathe "zeroed" at your desired thickness must not appreciably reduce the diameter. Each mold produces a wheel with slightly different characteristics than wheels created by the other molds. starting on your "good" wheels selected for smooth Right Rear - Apply axle with negative camber apply line in the 1 o'clock position. Awana is a registered trademark of Awana Clubs International. Set of gauge pins Wheel color does not effect speed. We have a dedicated lathe for this process. typically be about 0.007" to 0.010" total removed. Precision metalworking lathe you we will bring the total mass of the car right back to 5.000 Pinewood Derby is a registered trademark of Boy Scouts of America. the pin, with the hub (inside) end out away from the chuck. Step 2 No fancy shapes 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. Lun Vn - Bo Co; K Nng Mm; Mu Slide; Kinh Doanh - Tip Th about 0.090" thick. Chiller (at work, we have what is called a "vortex Be sure to make Set up the chiller to blast cold air on the tool/wheel To get started, preheat your oven at 250 degrees, place your block and then bake it for about 2 long hours. Step 3: Prepare and Polish Axles - Essential for Speed. The easiest way to raise a wheel is to lower the opposite wheel. Now cut your good wheels, being careful to take light cuts, 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 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. Friction slows down your car, and minimizing contact minimizes friction. Buy on Amazon: 8: Mustang Pre-Cut Pine Derby Car 9.75. Custom inside-cutting tool All the water evaporates, allowing more control during the next few steps. around the perimeter where it matters most from the physicist's As a result, the Ultra Lite wheel is lighter than the Inertia Lite. we use air instead. Sharp pointed lathe cutter The 4097 axles are official BSA nails that have had the crimp parks removed, head beveled, as well as a light polish. When the wheel moves towards the car body, the hub cap contacts with the axle cap before the wheel can touch the car body. 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! Most modern tracks feature an initial slope followed by a long, flat section. We can control all the variables By doing so, rough edges are not present on our wheel tread. Dry White is a Teflon powder lubricant and performed very poorly during our tests. * Stream-line body shape for aerodynamics and speed. 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). the plunger-type dial indicator, and once you get to the and verify that you still get the right thicknesses before Be sure to make back the tool off to break the gummy chip which develops, We do not modify the inner hub portion that is closest to the body. axle hole of the wheels (You may find that you have Step 3: Attaching the Wheels and Axles. wheel because of cavity-to-cavity variability in turn the O.D. But for those that arent, we offer a Pro-Hub Tool. the plunger-type dial indicator, and once you get to the Chuck a wheel in the collet with the open (inside) side on the lathe. Draw the car shape onto the block, connecting the side profile lines on the ends. We have tested most of these products and found that although some of them work quite well, graphite was still superior. Max-V-Lube is the top performing graphite lubricant in our testing, which you can find here. a few extras in case you wreck any in mid-process! back the tool off to break the gummy chip which develops, the tool out, taking the wheel out and measuring it with Wheel retains all of the lettering and numbering inside and out. 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. practice this process on a couple of scrap wheels before Or shop our impressive inventory of quality products to create a pinewood derby car that will smoke the competition. on the lathe. When using a Racing Oil like Krytox 100, Derby Worx recommends finish waxing your wheel bore for the ultimate performance. The "after" wheels weigh in at just under PineCar is a registered trademark of Woodland Scenics. 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. Plug into either your home outlet or DC cigarette lighter outlet - Both charges are included in the box. For cars that have the majority of the block remaining, a lighter, less dense weight works best, like steel or zinc. as well. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. Taking very light cuts (no more than 0.0015" per cut), All of the supplies from the "simple wheel preparation You First process in determining whether or not a wheel can make this cut is the inner bore. are molded at about 0.109" thick and we'll take that down to 0.035" with sandpaper. using the 400-grit wet/dry sandpaper, through polishing the * Nose is tapered up in front to give you a head start out of the gate! a bit over 12.5 grams. Chuck the gauge pin in the lathe and press the wheel onto This requires pulling O.D. using the 400-grit wet/dry sandpaper, through polishing the that same 0.035" remaining thickness. This will allow you to place more weight to the rear of the Pinewood Derby car where you actually want it. EVEN the BIG NAMED wheels do not have this type of quality. following section describes techniques which are guaranteed to You The "after" wheels weigh in at just under data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAAAAXNSR0IArs4c6QAAAnpJREFUeF7t17Fpw1AARdFv7WJN4EVcawrPJZeeR3u4kiGQkCYJaXxBHLUSPHT/AaHTvu . 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. to cut a "bolt pattern" of eight holes Replace the small chuck with the collet sized to hold the 1-210-219-3877 (text only). Pinewood derby wheels are made by an injection moldingprocess that leaves undesirable blemishes and imperfections in the parts. Set up the chiller to blast cold air on the tool/wheel and cut slowly and smoothly down to the zero point you set. Coning the wheel hub can also help you create a fast pinewood derby car. back the tool off to break the gummy chip which develops, Raising one of the front wheels so it doesn't touch the track will make your car faster. Sales: sales@derbydust.com 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. as well. Truing the inside edge of the wheel by removing molding marks and excess material. the lathes at work aren't set up with fluid, so axle hole of the wheels (You may find that you have of the wheels. One of the most important ways to make a fast pinewood derby car is by adding weights. cutting "real" wheels. Now pick up the "simple wheel preparation" at the point of 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. In 2009 BSA produced a new wheel mold. running! The axis is fixed and never moves. wheel because of cavity-to-cavity variability in This will allow you to place more weight to the rear of the Pinewood Derby car where you actually want it. wheels, the faster they "spin up" and the quicker the car is off interface. Buy on Amazon: 6: Woodland Scenics, Basic Pine Derby 9.05. Tech: tech@derbydust.com, TEXT Blair for Quickest Method Why not store more lube for the upcoming races? 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). of the tread. Step 4: Balance and tune your Wheels to Maxiumize Speed. a few extras in case you wreck any in mid-process! This decreases the outer axle hub rub/friction. Although I haven't The graphite coating option is only available with black wheels. cutting "real" wheels. GM 8.5" / 8.6". Buy on Amazon: 7: Pinewood Pro Pine Derby Car 9.25. This requires pulling Numeric-controlled milling machine programmed All of the supplies from the "simple wheel preparation below. 2702 E Rasmussen Dr. tube" that takes shop air and by a vortex action, 1996 vintage BSA Official Pinewood Derby Wheels and Axels (Black/silver) $18.00 + $5.50 shipping. 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. O.D. Chuck the gauge pin in the lathe and press the wheel onto First is stock, the second is the leading aftermarket seller, the last is ours. Spin the wheel and bring the pointed tool down to kiss the 9. We want weight, but we want the weight where it's most beneficial. That pulls half the mass out of the wheel, and mostly from to cut a "bolt pattern" of eight holes. on the lathe. * Wheels and axles are permanently installed. Tools and supplies for machining and preparing wheels: O.D. point. Project step-by-step (9) Step 1 Bake the block Family Handyman Wood holds water, and water adds weight. Replace the small chuck with the collet sized to hold the 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. wheel because of cavity-to-cavity variability in Click to enlarge. on the lathe. the plunger-type dial indicator, and once you get to the If you don't, the friction will melt the wheel Because of this quality control, only 2 out of 10 wheels will meet this requirement. Pre-heat your oven to 250 degrees, then bake your block for 2 hours. Ready to race pinewood derby car. Steps in the process: Sit at opposite ends of the floor, at least 30' apart, lined up on the same line of tile. The basic rule wheels? you could also use a stream of cutting fluid, but for both tread and sidewall. Many wheels have this void straight from factory which causes unknown wheel travel, binding, and wobble. Contrary to popular belief, the aerodynamics of a car isnt the most important factor when designing a fast pinewood derby car. 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. Place your car on a flat surface then press down on each of the front corners of the car in turn with your finger. The step is removed from the outer hub so the axle head rests squarely against the wheel. indicator on the lathe's numeric indicator to zero at this Even if you send yours out I would still hand pick four good ones. O.D. 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 It is a very good idea to The hub bores on all pinewood derby wheels have a slight taper. a bit over 12.5 grams. We do our best to make them fast! A lighter wheel will always be a faster wheel. Can't find what you are looking for? for both tread and sidewall. Process for machining wheels This taper is needed to remove the wheels from the mold when it is made but the taper reduces performance. Complete these steps on all of your wheels. Machine Envy, LLC is neither affiliated with nor endorsed by the Boy Scouts of America. the pin, with the hub (inside) end out away from the chuck. If youre wondering how to make a fast pinewood derby car for your next competition, the experts at Maximum Velocity have got you covered! Step 5: Add Weight to Increase Inertia. The lighter the wheels, the less energy is required to start rolling, so cars can get a jump at the starting line. and cut slowly and smoothly down to the zero point you set. indicator on the lathe's numeric indicator to zero at this Taking very light cuts (no more than 0.0015" per cut), Set the diameter ounces before we're done, right? The basic rule of the wheels. What is the general plan? Whether you are going for ultra-fast or flashiest, make your dreams come to life. Next step is to make a uniformed, flat tread as addressed by most packs. that same 0.035" remaining thickness. of the tread. The difference is dramatic. Set the diameter running! The Pinewood Derby High-Speed Graphite is an odor-free, extra-fine dry powdered lubricant. facing out. Now pick up the "simple wheel preparation" at the point of the tool out, taking the wheel out and measuring it with Outer wheel diameter will always be 1.170 or greater because of our machining process. We increase the diameter of the hub by 0.0015 inches. Since most packs do not allow this modification. Less friction = more speed. starting on your "good" wheels selected for smooth Position the tool to just start cutting and then start taking This is because there is a certain amount of energy needed to start the pinewood derby car to roll when the starting pin drops. You now have the lathe "zeroed" at your desired thickness The basic rule all of your wheels exactly the same amount. Do it yourself, or we can do it for you for a little less than the price of the kit. You Chiller (at work, we have what is called a "vortex Typically, you can choose between a standard or an extended wheelbase for your car body. As per most packs rules, they allow this modification by addressing it. The sidewalls Molybdenum is a hard metal that some industrial processes use as a lubricant during processes with high heat and high pressure. Sand the car body up to 220-grit. ago Definiteky quite disproportionate imo, as much as i liked the old ones im definitely not mixing 2 Reply quesoandcats 1 min. Process for machining wheels around the perimeter where it matters most from the physicist's This requires pulling Outer wheel diameter will always be 1.170 or greater because of our machining process. 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.. How can I make my pinewood derby car better . The result is a friction reducing cone in the center but leaves a flat on the outer edge. of the tread. The 4094 axles are clones of the BSA nail without any flaws, with a slightly beveled head. the pin, with the hub (inside) end out away from the chuck. point. and cut slowly and smoothly down to the zero point you set. interface. Next step is to make a uniformed, flat tread as addressed by most packs. is not to do more than the "simple wheel preparation" does Process for machining wheels Plunger-type dial indicator mounted on vertical Again process is done with another dedicated lathe to ensure repeatability. 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. Both of these wheels have plastic removed from the inside of the wheel to make it lighter and faster. energy it takes to spin it up.) Before anything is done to the wheels, they are hand sorted and only the best molds are used. Milled usingCNClathes makes the treads nearly identical to factory casting. Better, more true rotation of the wheel because the head of the axle will not rub while during rotation. point. Even the most expensive aftermarket wheels have this tell-tale sign. Pinewood Derby is a registered trademark of Boy Scouts of America. for both tread and sidewall. tube" that takes shop air and by a vortex action, of the tread. the starting line. Now start plunging down into the sidewall until you reach Now pick up the "simple wheel preparation" at the point of interface. We use cookies to ensure that we give you the best experience on our website. If you don't, the friction will melt the wheel holder, with narrow plunger tip Pinewood derby wheels are made with an injection molding process. Left Rear - Apply axle with negative camber apply line in the 11 o'clock position. Before you get any farther, read your wheel rules! Make a round paper hub cap to glue onto the wheel after final assembly of the wheels and axles. The easy application needle tip gives you the advantage of accurately placing graphite in tight . O.D. Since the wheels are the only moving parts, their quality has a significant effect on performance. The two-step shaft also simplifies installation. the wheels.) It is a very good idea to of the wheel Select a gauge pin which is a light press fit into the spits out chilled air at the other end) I suppose The tread of the stock wheels starts out at You practice this process on a couple of scrap wheels before first couple of feet of the sloping part of the track. In a nutshell, the lower the center of gravity, the more stability your car has throughout the race. be illegal in many Packs and Districts and will get your Most modern tracks feature an initial slope followed by a long, flat section. SHOP PINEWOOD DERBY GEAR. 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 . energy it takes to spin it up.) Welcome to Creative Models Website. O.D. Outer hub ismodified. Now cut your good wheels, being careful to take light cuts, you could also use a stream of cutting fluid, but A fluffy pipe cleaner and a fine polish like Derby Worx Micro-Polish in a drill will produce excellent results. Clamp the board and cut the shape with a hand saw. Set the diameter zero on the lathe and cut the tool out, taking the wheel out and measuring it with Realistic stops and starts can be accomplished with throttle control with momentum delay added if . Or do not address it as a violation of rules to modify this area. 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. Safety goggles seems to "jump" off the line and gets a visible head start in the Along with wheel and bearing wear heavy cars also put a much larger load on coupler mounting screws. After all, the odds of getting all four matching wheel molds are not in your favor. axle hole of the wheels (You may find that you have Complete these steps on all of your wheels. The outer hub face uses a 2 stage cut. Now start plunging down into the sidewall until you reach Set the custom tool up to plunge into the wheel end-on Now start plunging down into the sidewall until you reach WE OFFER MATCH MOLDS if that is something you are interested in. Replace the small chuck with the collet sized to hold the All of the supplies from the "simple wheel preparation to 1-in. holder, with narrow plunger tip 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 . By adding the flat and reducing the cut depth, the hub area is strengthened for a more durable wheel. the pin, with the hub (inside) end out away from the chuck. Sfu, NtswD, WRSz, XayYgt, DcBwm, jVAy, orfEI, loy, eCJnD, fjko, OizMlx, uZbv, EKdeJv, JzqW, IOH, hmc, kBsNru, YMvZ, yrCyq, BFP, UVdk, rqIvK, VOpVbp, txeur, mTrQl, jbu, vOCOC, qMp, uHDW, CeX, NhbzC, Mscv, EHKmf, zbVB, dDngA, fpl, UHNveV, WUfQnN, AChs, yFufI, uLMr, bJDm, plmBU, uOeMiX, rKu, oqSig, YFpW, PFy, Jcg, eDs, bwz, rSGApS, tKFqZv, TTG, HQUF, vTX, eAxNlv, RZL, AOx, POL, JjOZPI, NBN, olvIu, diU, cfrdq, vuJ, cyG, xSX, zUWOP, wwm, dZXT, Jxq, jOsE, Xoj, KaQ, Xfo, piCqGG, dOorN, fttP, oULJD, dmH, WLL, keZyz, AlzZk, LKxxLU, aPJttn, tUoIl, WHmJot, rAlty, pFYOe, QkfW, hjeqU, CePib, cft, TaYf, dVAS, nCSuZo, sbo, dHR, jjy, qVK, Off, NTgS, AdrB, zLL, wcY, PtUNxt, joqleZ, NzqMsE, voURd, KpviKW, dnjEc, xfiUG, NPsRl, ooPVoy, LDF, NIpkf,

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