DIYLILCNC and Pinewood Derby

This topic contains 12 replies, has 5 voices, and was last updated by  ErrorF002 5 years, 11 months ago.

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  • #2413

    ErrorF002
    Participant

    I have been lurking about this project and I am excited about 2.0 coming out as this will probably be the trigger that gets me into building one of these kits. Questions:

    * When do you all think that 2.0 is due out?

    * Is there a software package out there that is easy enough for Cub Scouts to design their own cars? I think it would be a neat twist to throw some technology into the process. Most kids today get bored with all the sanding.

    * I am sure that I am missing some important part to make this idea a success. Please share your thoughts.

    Be gentle. I am not a maker (yet). Your input is appreciated.

    #3856

    Taylor
    Keymaster

    @ErrorF002,

    Pinewood derby would be a fantastic application! There’s no explicitly kid-friendly 3D modeler that I can think of, but we could do a tutorial on a general approach that kids could then modify with the help of an adult. Send us some general specs on the derby (car size/weight/material limits) and I’ll do a little youtube video for you.

    I don’t think you’ve left anything out. In fact, you could do pinewood derby with lil’ CNC version 1 if you’re chomping at the bit. We hope to release v2 in the next six months.

    #3857

    ErrorF002
    Participant

    Wow that would be awesome!

    Here are the general rules most packs go buy.

    http://www.pinewoodpro.com/pinewood-derby-cars-rules.htm

    If I do 1.0 and then 2.0 comes out, how left out will I feel with the new features? I know this is an approximation at best.

    #3858

    Taylor
    Keymaster

    Here are two quick videos about making digital 3D models of pinewood derby cars. I forgot that you posted the specs above, but I believe I wound up in derby-legal territory.

    #3859

    Taylor
    Keymaster

    @ErrorF002,

    In answer to your second question, v2 will be pretty different. We’re making a lot of changes to help folks build abroad – both in terms of metric hardware and in countries where the industrial supply chain isn’t as robust as in the states. v1, on the other hand, is ready to do derby cars right now with no modifications. So pick your poison!

    T

    #3860

    T4b
    Participant

    @Taylor: I’m running Linux, do you have any suggestions for a good free 3d modeling tool? It looks like Rhino3D doesn’t run on Linux and it is too expensive for me anyway. Maybe at the students price, but that would still be a lot of money.

    #3861

    T4b
    Participant

    Ah and I’ve already tried Blender numerous times and was never able to use it, it’s really complicated, in my opinion (respectively just not easy to learn, probably it isn’t complicated anymore when you get used to it).

    But I guess if there’s nothing else I could learn it.

    #3862

    Ming
    Participant

    It’s possible to run Sketchup on Linux using Wine. I have no idea how stable it is but both Wine and Sketchup are free.

    http://wiki.winehq.org/GoogleSketchup

    #3863

    Taylor
    Keymaster

    @T4b,

    Here’s a thread with a couple of suggestions. I’m afraid I’m no Linux genius, and I must admit that I model in more typical Mac/PC environments. Blender is mentioned a lot, but there are other options on that link too if you look closely.

    #3864

    russfromnh
    Participant

    This would be fun for a no-rules or adult race. But I would never let my kids use it for an official race. In my district it would be disqualified anyway. It is important for the boys to learn how to use their hands to create.

    But… I could see this being used as a ways to earn the Robotics Merrit Badge. or even as a great deomstration for the kids…

    #3865

    Taylor
    Keymaster

    Keep in mind that this CNC comes it kit form. Thus, kids would still have to do a lot of hand-building to get to this point. Not that one should replace the other… I do love the idea of an anything-goes derby!

    #3866

    T4b
    Participant

    @Taylor: I’m giving Blender an other try… Don’t think one of the others mentioned there are really easier.

    I watched a few tutorials on http://cgcookie.com/blender/ and I think I can do a few things with Blender now, at the moment I’m trying to make a 15 puzzle (I think that’s what it’s called) to make with my school’s cnc mill.

    #3867

    ErrorF002
    Participant

    First off,

    @Taylor Thank you for making these videos. This is simply amazing stuff.

    @russfromnh I don’t see where in the rules a car made CNC is grounds for disqualification. You can compete with premade cars (most likely CNC’d) and no one knows the difference. The point is to have the car in spec. Where as I understand that there is a “spirit” to PWD, I like the idea that the kids can get some science and technology learning on (more applicable for the future than learning how to use a coping saw). They design the car, it gets milled before their eyes, they weight, sand, paint, and mount wheels and axles. All the while observing the weight and dimension restrictions. I may only do this with my Webelos. The younger ones will still have the old fashioned experience. This makes the process new and fresh for the Webelos.

    I am totally down with the spirit of Scouting. Especially the motto “Be Prepared.” I just like to add “for the Future” in there where I can.

    It is unfortunate that Rhino is too expensive for our budget and limited use. I will have to see if Blender will work for us.

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