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Thread: 3D printing of parts

  1. #11
    LS1 DMC Nicholas R's Avatar
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    Quote Originally Posted by David T View Post
    3D printing is OK for prototypes but it is not very durable. IMHO it would not hold up well especially when it gets hot. 3D printed parts don't do well over 100 degrees and in a hot car it can get to over 150 degrees especially the dashboard. I made some parts for ignition wire clips (not a Delorean) and they shriveled right up. They were on the motor and it was around 180 degrees.
    You're using the wrong process and material then.

    First of all, there are about 10 different types of 3D printing processes, and dozens of materials available that you can 3D print in. As such, any blanket statement made about what 3D printing can and cannot do is simply going to be wrong. If you're talking about a specific process and material -- in your case it sounds like FDM (Fused deposition modeling) with PLA filament -- then sure, the parts probably wont last when used like that. But that's the fault of the person that tried to make parts that way, not the process.

    Secondly, I have 3D printed parts in my engine bay right now, and have for the last several years. The "LS1 DMC" letters on my engine covers are 3D printed polyamide. 2+ years, thousands of miles, and some pretty extreme heat driving in Florida summers, and they're still in great shape. No signs of distortion, degradation, or anything, and I can guarantee my engine bay exceeds 180 degrees. So again, it's all about the process and material you choose.


  2. #12
    Delorean Guru
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    You're right of course, the materiel is all important. My machine can only print with PLA. There are machines that can use other, more durable materials but they are very expensive to own and operate. Another possibility is to send the file out and have someone print the parts for you. There are printers that can even print in metal but they are very slow and expensive right now. To print the dash would require a huge printer, that part is long for 3D printing. Breaking it up into several parts is a possibility but it may not fit well doing that and you would have the joints.
    David Teitelbaum

  3. #13
    LS1 DMC Nicholas R's Avatar
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    Quote Originally Posted by David T View Post
    You're right of course, the materiel is all important. My machine can only print with PLA. There are machines that can use other, more durable materials but they are very expensive to own and operate. Another possibility is to send the file out and have someone print the parts for you. There are printers that can even print in metal but they are very slow and expensive right now. To print the dash would require a huge printer, that part is long for 3D printing. Breaking it up into several parts is a possibility but it may not fit well doing that and you would have the joints.
    I agree that it definitely starts getting expensive as you use more and more exotic materials and processes.

    I did not print these letters myself; I had them printed through imaterialise.com. They were pretty reasonable though; I think the total cost was ~$25 plus ~$10 shipping.

    I've seen some pretty impressive prints that were made in multiple pieces that are bonded together afterward. In one piece, yes the binnacle would be pretty outrageous. But in multiple prints, I think it would definitely be possible.

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