2 ай бұрын
2 жыл бұрын
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@KevinBoes-o7f 2 күн бұрын
Followed this and my daughter just took first place and fastest car!!
@EngWorkshop 2 күн бұрын
Nice work - congratulations!
@adama163 5 күн бұрын
Great video - I watched a number of these and yours is one of the best - very clear and thorough. Thank you for creating it. The diagram with measurements is super helpful. I am helping the first 3 of 8 grandsons make their cars so will get alot of practice over the next few years :)
@EngWorkshop 5 күн бұрын
Thank you for the kind words. I'm glad you found the video helpful. Good luck helping your team of grandsons - sounds fun!
@spencerkat959 7 күн бұрын
Hello, our pack has a wheelbase limit between 4-4.5 inches. Would it be best to center the axels and find a balance point 3/4-1" in front of the rear axel or keep the back axel close to the rear of the car and have the front axel significantly in from the front edge of the car?
@EngWorkshop 7 күн бұрын
Keeping the rear axle close to the rear of the car is best. This keeps the balance point as far as possible to the rear, which means the car starts off with as much potential energy as possible.
@boborourke4902 10 күн бұрын
Can one use super glue/krazy glue to glue the axles instead of epoxy? Thank you!
@EngWorkshop 10 күн бұрын
I don't have as much experience with Super Glue as epoxy, but Super Glue should work, especially medium thick Super Glue like www.amazon.com/FastCap-80113-Professional-Medium-Adhesive/dp/B000WUI0PA, which is designed for woodworking.
@juliecole3940 14 күн бұрын
Hi John, I'm not sure why my post isn't on here. I love your videos and had a few questions as I am in crunch time to help my grandson build his car. 1) my pack requires 4.5" between axles, so do I cut the car shorter, or leave the excess in the front or back what do you recommend? 2) I need 3'8" clearance underneath and they don't allow weights underneath unless the car is hollowed out or it's shape creates an arch where you can put weights, which means in a 3/8 " car all the weights have to be on top. I don't understand how you determine the balance point using a ruler. If I buy a flat metal ruler at home depot can you walk/talk me through that? I think that is key in knowing how to put all these weights on top of this car. I tried looking at the pictures of your cars but none of them show weights except the two up front. If I use the cube tungsten weights I would have a wall of weights sitting on top, is that right or am I misunderstanding weight placement. I'm sorry I am new to all of this but would really appreciate any and all help/clarification you can provide. Thank you,
@EngWorkshop 14 күн бұрын
I made two videos that are similar. I posted answers to your questions with the other video: kzbin.info/www/bejne/nIDEnomFiNuco80
@juliecole3940 14 күн бұрын
Hi, love your videos. First time grandma trying to help grandson create a winning car. I have several questions I hope you can help. When I brought the block to get it cut by the troop leader, they gouged the wood and ended up giving me a new block and I have to hand cut on my own. They said I have to keep 4.5 inches between the axles, meaning I would have the excess wood in the front or the back or need to cut the car shorter, what do you recommend? In one of your videos you show to drill glue holes but never address how or what to glue. I assume we place the axle nails into the holes and glue from the other side down the hole? In placing the weights 3/4-1" in front of the rear axle you said you can't have too much wood in front so you may have to make it narrower in the center? If I cut the wood 3/8 inch thick and then make it narrower it leaves very little room to place a whole bunch of weights in a small area of the car in front of rear axle or am I misreading something? Our pack also requires a clearance under the. car of 3/8" the only weights under are if you hollow out the car of the car's shape (arch or something similiar) leaves a gap that you can fill with weights. I am trying to figure out on a 3/8" car, in a space 3/4" to 1" in front of rear wheels how I can get almost 4+ ounces of weight. I tried looking at your pictures of your cars but only the first row show any weights, I guess your weights are underneath? If I pile a bunch a weights up in a small area of the car I am sure it won't be very aerodynamic. Any and all help would be greatly appreciated. Nervous grandma here.🙄
@EngWorkshop 14 күн бұрын
These are all very good questions. I'll try to take them one-by-one. 1. AXLE POSITION: If you must keep 4.5 inches between axles, put the excess wood in the car's front. Do not shorten the car. Another option is to use the axle slots provided with the block of wood. If you do, be sure to drill them out as shown in the video (12:11) and glue the nails in their final position. 2. GLUE HOLES: When you place the nails into the holes, you should see the nails at the bottom of the glue holes. When the nails are in their final positions, drop a little glue down the nail hole. 3. WEIGHT PLACEMENT: The balance point -- NOT the weights -- should be 3/4" to 1" in front of the rear axle. The weights will usually be located somewhere behind or over the rear axle. The precise weight location is not critical. They don't need to be stacked on top of the balance point. It is the balance point location (not weight location) that is important. The video's final photo (14:50) shows where I put the weights on my demo car. They were attached with epoxy. 4. BOTTOM CLEARANCE: I do not recommend attaching weights to the bottom of the car. Not only do they get in the way, they also can fall off. 5. BALANCE POINT: There is no trick here - just balance the car on any vertical straight edge placed across the bottom of the car to determine the balance location. If you don't have a ruler, a thick piece of cardboard (cut from an Amazon box, for example) would probably work. Hope this helps. Feel free to post any follow-up questions. Good luck!
@juliecole3940 13 күн бұрын
@@EngWorkshop Thank you, John. I feel like you are my lifeline in this venture. I am still a bit confused on the balance point, In order to find the balance point I should have the car with it's wheels and axles on but no weight? Once I find the balance point I make sure the weight goes behind and up to that balance point? Sorry, I am such a novice on these things, I appreciate your time and help.
@EngWorkshop 13 күн бұрын
To adjust the balance point, put the wheels and axles on loosely and stick the weights with tape somewhere over the rear axle. It's hard to see in the video (5:46), but the axles are barely in the holes for this step, and the tape is hidden underneath the weights. Move the car forward or backward over a straight edge until it balances - this is the balance point. If the balance point is not where you want it (3/4" to 1" in front of the rear axle), move the weights toward the front or rear of the car until the car balances at the desired point. This will take a little trial-and-error.
@juliecole3940 11 күн бұрын
@@EngWorkshop Hi John, I've been waiting for weights and things to arrive from Amazon I loosely put the car together as you mentioned (wheels and axles barely on) with weights and the balance point is 1" in front of the rear axle and my left front tire is up (yay). I still have to paint, glue axles but as it stands right now we are weighing 4.9. I wish I could send you a picture. I had to cut the car out with a coping saw - it was very rough going. The wood was gouged in a few spots on top so I used pine derby putty, let it dry and sanded it. I may have to do it again in one spot. Once that cures and is sanded we'll be ready to paint. I just can't thank you enough. God bless you!
@EngWorkshop 11 күн бұрын
Sounds like you are on the right track (pun intended)! Glad to help. Good luck!
@ericswiatek827 20 күн бұрын
What size drill bit is used?
@EngWorkshop 16 күн бұрын
The drill bit size is #44. This is a machinist size and is slightly smaller than a common 3/32" bit. You can find #44 bits on Amazon or any online Pinewood Derby supply store.
@forrestliang669 21 күн бұрын
how did you attach tungsten weights to the car body? glue or something sticky? Thanks!
@EngWorkshop 20 күн бұрын
We used 2-part, 5-minute epoxy. Others in our pack have used hot glue, but the bond with hot glue is weaker, and the weights occasionally fell off during the race.
@charlixplague 24 күн бұрын
Dang! This is like making a F1 car for the Pinewood Derby 👏🏼👏🏼 I appreciate all the attention to detail and helpful tips
@glennbrown2921 27 күн бұрын
Thanks for the vid, I thought about narrowing the wheels, should have less friction but not sure of the outcome yet.
@theEllieGshow Ай бұрын
Have you got links to any of the products used please?
@EngWorkshop Ай бұрын
In the comments below the video, I added links to the supplies and special tools. Hope it helps!
@Bootsie142 Ай бұрын
I think they should change race who can make slowest car
@EngWorkshop Ай бұрын
Some packs actually have an award for the slowest car. Our pack called it the "Best Gas Mileage" award. I think it would be a much harder task to design a car to win such an award.
@melissanuckolls8630 Ай бұрын
Do you bake the wood of the car? I saw that on the Cub Scouts website, but not sure when you would bake it. Before of after cutting the design.
@EngWorkshop Ай бұрын
We have never baked our cars. Baking makes the wood lighter so that it might be easier to achieve the correct balance point when adding weights. But with a proper body shape that is not too heavy in the front, there should be no trouble achieving the optimum balance point without baking. I would worry that baking could crack or warp the wood, although I have never tried it.
@HarryARiggs Ай бұрын
It looks very like this car must be made by an adult not by a seven-year-old Cub Scout.
@EngWorkshop Ай бұрын
Indeed, the car in this video was made by me for demonstration purposes. As a former Cub Scout leader, I recognize that Scouts have an extremely wide range of abilities, even at the same age. A few Scouts can do the build steps by themselves, but most seek help from a parent. I made the video as a resource for both DIY Scouts and helper parents in response to questions that I received from both groups.
@calzord Ай бұрын
This looks like a great project.
@matthewmcpherson152 Ай бұрын
Would having the ridges on the axle facing upward make the tire rub on it more? Or is done that so less of the tire touches the axle?
@EngWorkshop Ай бұрын
Because the weight of the car presses down on the axle, the downward side of the axle presses on the inside bore of the tire. Having the ridges facing upward means the downward side of the axle is the smooth side, theoretically reducing friction. The improvement is probably small, but every little bit helps.
@SmileyIsAlone 2 ай бұрын
Wow I think small
@lindsayperry1191 4 ай бұрын
Does balance point mean I place the weight temporarily and adjust it so the car balances without wobbling front or back?
@EngWorkshop 4 ай бұрын
That is correct, but there is a caveat. If the car is balanced on a very thin ruler, then the car may never stop wobbling, even if it is on the balance point. We use a metal ruler that is about 1/16 inch thick so there is a flat (but narrow) edge on which the car can rest.
@richardchristensen8863 4 ай бұрын
thank you for your help!!
@richardchristensen8863 4 ай бұрын
Thanks for taking the time to do the video. I have a question: In our packet of materials there were 4 very smooth axels and none with the 3 ridges that you used to help steer your car into a straight line. As it stands right now my son's car moves to the right as it goes forward. I cannot figure out a way to make it go straight given the 4 smooth axels we have. Is there another solution to this? Thanks!!
@EngWorkshop 4 ай бұрын
The axle ridges are not related to steering, so it's no problem if you don't have them. They just cause extra friction, so you're better off not having them. Instead, steering is accomplished by positioning one of the front axle holes higher than the others (10:04) and slightly bending the other front axle (8:51). The car's direction is changed by turning the bent axle slightly (10:44). This method is used in the video. The ridges have nothing to do with the bend, but you still need to make a mark on the axle head so you know which way the axle is bent, because the bend is so slight. Hope this helps.
@brianclark2119 8 ай бұрын
You are missing the important reason for the establishment and promotion of the Pinewood Derby. A chance for a parent and child to work closely together enabling the child and parent to develop and share skills an aspect ignored in this video. As a former scoutmaster far to many times I observed scouts that were unable to pick out their " own" pinewood from the other cars that were placed on the staging table when it was time for them to race "their" car.
@EngWorkshop 8 ай бұрын
I completely agree with your statement about the Pinewood Derby's importance as a collaborative activity between parent and child. We made the video in response to questions I fielded from parents and Scouts when I was a Den Leader. We hope the video will serve as a resource for parents and Scouts alike.
@DROP_BEARZ 8 ай бұрын
You forgot the super collider magnet...
@ddtoledo 9 ай бұрын
Our derby race allow 6oz. Does any of your specs change given this new weight limit?
@EngWorkshop 9 ай бұрын
Assuming the car dimensions are the same, I think all the design considerations would be the same, except that you can have a little more total weight.
@JourneyontheTrail 10 ай бұрын
Wanted to thank you…using many of your suggestions in this video helped my daughter win 1st in her class and 2nd overall today in an Awana Grand Prix.
@EngWorkshop 10 ай бұрын
Congratulations! Well done!
@IlianaInfurchia-bf7gv 10 ай бұрын
☺
@seanenright2497 11 ай бұрын
Wanted to use this process, but couldnt because my son's pack only allows existing Axle slots to be used. Great video though!
@EngWorkshop 11 ай бұрын
If the axle slots must be used, it is a good idea to drill them out and glue in the nails, as shown near the end of our video. Otherwise, we have found it is easy for the slots to be damaged during axle installation, or the nails to fall out during the race. Much of the video's process could be adapted for your son's Pack. For example, the principles of weight distribution still hold. And if the axle slots are drilled out, you probably can use the same method of wheel alignment. Either way, thanks for watching and good luck!
@MichaelWysocki-ks5xt 24 күн бұрын
I drilled new holes on the other side, then cut with a saw just enough to make it look like I used the slot, then filled them with putty. Just in case they got picky. After I cut the car body design the original slots were gone.
@margiedenavarre7919 11 ай бұрын
What is the height of the car? 1/2 inch?
@EngWorkshop 11 ай бұрын
The design shown in the video is 3/8 inch in height.
@emilyallen8436 11 ай бұрын
I swear to God. If I watch ONE MORE "easy tutorial with basic tools" video and they come out with friggin industrial tools and random drill guides I'm going to scream. I'm just a useless, single mother!!!
@EngWorkshop 11 ай бұрын
While we are lucky to have a home workshop with a band saw and drill press, neither is a necessity. The car in the video was made with only the "basic" tools shown in the opening. But making the fastest car does require some tools, and the definition of "basic" may be relative, as you imply. Fortunately, the most important step requires no tools: planning the best weight distribution for a given car design. I'm sure you are far from "useless" in helping your child. Good luck and, above all, have fun!😀
@seapanther53 11 ай бұрын
KZbin "Easy pinewood derby wins using science". Trust me.
@bow_wow_wow 11 ай бұрын
I'm a father. I come from three generations of single mothers. I completely understand your anger and frustration. I also have never had anyone to show me how to do things like this. Then the pack leader shows up and says, "OK, everybody! Time to build a pinewood derby racecar!" like we're all supposed to just magically know how to it's done. It's incredibly frustrating and it makes you feel like such a loser.
@ruzzcraze1862 11 ай бұрын
It's basic in the sense of woodworking tools. Props to you for helping your kid in their pinewood derby.
@stephaniekuntz2881 8 ай бұрын
Only an engineer would think this was basic...haha
@jeansonnea Жыл бұрын
What size drill bit do you use on the press? I rather use my press
@EngWorkshop 11 ай бұрын
Whether using a drill press or hand drill, you need to use a #44 drill bit, which is slightly larger than 5/64" and slightly smaller than 3/32". You can buy #44 drill bits from online Pinewood Derby supply stores or Amazon.
@pbrstreetgang4571 Жыл бұрын
Built our car as close to your instructions, although we did go with a rail runner. My son won his age group, (6th grade) and overall fastest car. We had never built a car before. Thank you.
@pbrstreetgang4571 Жыл бұрын
I meant 6 yo
@EngWorkshop Жыл бұрын
Well done! Congratulations!
@NP-ge6um Жыл бұрын
Great video and thank you for all the tips. I wish i could attach pictures of the car my daughter and I made for her pwd race event. Her car averaged 218.07 MPH across 6 heats. She won the first place in the pack and the rank Thank you for making this video.
@EngWorkshop Жыл бұрын
Well done and congratulations to your daughter! I wish I could have seen the car.
@NP-ge6um Жыл бұрын
The differences in design are 1. instead of the left wheel raised, we had the right wheel raised. 2. Also we could not find the rectangular weights so we went with the cylindrical weights and superglued them together to create a rod like structure and placed them at the end. @@EngWorkshop
@EngWorkshop Жыл бұрын
Thanks for sharing the photo. As you figured out, it doesn't matter which side has the raised wheel. I just had to pick a side for purposes of the video. And your cylindrical weights look better (less utilitarian) than the rectangular ones.
@barakduke 10 ай бұрын
can you share the photo of your car?@@NP-ge6um
@thomasracioppi619 Жыл бұрын
My son and I had our 1st pinewood derby yesterday and won 1st place in his pack and 2nd place overall! Great video… by using simple tools, my son was so involved, and so proud of himself! Thank you for this video!!
@EngWorkshop Жыл бұрын
You're welcome, and congratulations!
@BetterCallPaul_215 Жыл бұрын
Great video. We’re on our 2nd Pinewood Derby and we screwed up our first run at a car this year. Couldn’t follow this exactly because we can’t move the wheels forward or back but I needed a solution for a quick car that would be fast. Using the main principles of this build we were able to put together a car 4 days before the race that finished 2nd in his group and was significantly faster than our first try last year. Looking to build on that for attempt #3 next year.
@EngWorkshop Жыл бұрын
Good job, and congratulations! As you probably discovered, weight position is still the most important factor even if you can't change the wheel positions. Wishing you continued improvement!
@prashthy Жыл бұрын
Great video! Thank for sharing. Is there a link to where you go those weights?
@EngWorkshop Жыл бұрын
I have purchased weights from www.maximum-velocity.com, but they are also available on Amazon.
@stephaniebattipaglia209 Жыл бұрын
We just raced our car and won second place with your video! Thank you !
@EngWorkshop Жыл бұрын
Well done! Congratulations!
@Eric-y2q3i Жыл бұрын
cool
@vanessaedwards1026 Жыл бұрын
Where can you buy that drilling guide?
@EngWorkshop Жыл бұрын
We bought the drilling guide from www.pinewoodpro.com. Similar guides can be found at other Pinewood Derby supply sites, such as www.maximum-velocity.com and www.abc-pinewood-derby.com. If you use a drilling guide to lift one of the axle holes, you may find the hole is lifted by more than the 1/16" we recommend in the video. That is OK, but it might increase the risk of the car jumping off an uneven track. If you want to drill holes at exactly the positions shown in the video, you may have to experiment a little with index card shims placed between the drilling guide and wood block.
@travisfrey5694 Жыл бұрын
“Using only basic tools.” Pulls out a drill press and band saw.
@EngWorkshop Жыл бұрын
When I inserted footage showing the band saw and drill press, I probably should have made it clearer that this video's car was actually made using only the hand tools I showed at the beginning. Although helpful, a band saw and drill press are not required to make a winning car.
@bow_wow_wow 11 ай бұрын
@@EngWorkshop You made that clear. I heard it clearly the first time I watched the video.
@pitchfo248 Жыл бұрын
I'm posting this two years after this video was made. I wanted to leave a bread crumb for anyone who is doing their research for the big race. The tips in this video are very good for building a fast car. All things being equal (i.e., you don't have any superstar cars in your Pack) you will have a top car with these tips, and it won't take you a year to build as they are fairly easy to implement. Good luck!
@EngWorkshop Жыл бұрын
Thank you for the kind comment. As mentioned in the video's description, we made a second video showing a step-by-step example of how to implement these tips.
@Mix-l3d Жыл бұрын
Hmmm the connection tho
@Mix-l3d Жыл бұрын
🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤔🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐🤐
@fearless3geclipse Жыл бұрын
Great vid. But you did all this and didnt race it? Bummer
@EngWorkshop Жыл бұрын
Thanks for the sympathies, but they're not necessary, actually. Making the sample car itself took less than a couple hours, which was insignificant compared to video production. Past cars of similar design and construction all won their races, so we're pretty sure the sample car would have done the same.
@phaedruscj3330 Жыл бұрын
At the end you show the cars you? have built. Which was the fastest? Thanks for posting!
@EngWorkshop Жыл бұрын
Fastest car was #512, second row, fourth car from the left. It was my car for our Pack's parent race one year. Over the years, I have participated in the parent race using cars of similar design and construction, so I'm not certain why one car would run faster than the others. I wonder if slight differences in track setup might be the cause.
@Navneetkaur-cb7wt Жыл бұрын
Mark rober engineer
@glennwatson3313 Жыл бұрын
I think raising the nose would allow the car to take off a fraction of a second faster.
@EngWorkshop Жыл бұрын
This is true, in theory. We have seen some car designs that implement this principle. How much difference this makes is unclear. The spring-loaded starting pin found on most PWD tracks releases the cars much more quickly than they accelerate.
@larsonmk1 Жыл бұрын
Thank you for making such an awesome video! No annoying background music, no long, drawn out intro. Clear and to the point!
@EngWorkshop Жыл бұрын
Thank you for the kind words. I don't like rambling videos either!
@liv3234 Жыл бұрын
is this too thin? 3/8 of an inch seems fine. we have to do this in high school in our science class.. my teacher was telling me that the car was too thin and it wouldn’t work. i see everyone saying this design has worked! anyone have an tips?
@EngWorkshop Жыл бұрын
Were you given a reason why a thin car wouldn't work?
@liv3234 Жыл бұрын
@@EngWorkshop no we were not given one. It were strongly advised to make it thicker. we ended up making it a little thicker and we won 2nd place out of the entire grade so it ended up working really well! great video it was awesome for people with no wood experience!
@YERINMOM11 Жыл бұрын
너무 도움많이 되었어요 자세한 설명 감사합니다❤
@Oddzilla51 Жыл бұрын
Great video! And super simple design. By the end of my sons cub scout days, we had a very good design and he went all the way to regional finals with it in Webelos II. Thanks for sharing!
@EngWorkshop Жыл бұрын
You're welcome!
@robertstarner8083 Жыл бұрын
Really great video!!!! Thank You……I do have a question when placing the nail/axles…..How far in do you place the axles?? How concerned are you to keep the inside of the wheel from rubbing against the side of the body????? Thank you
@EngWorkshop Жыл бұрын
I think the proper gap between the wheel and body is important. As shown in section 8 (wheel installation), the gap should be 1/32 inch. The video shows how to make a spacer to help achieve the proper gap.