Which 3D Printer Filament Makes The Toughest Car Parts?

Comments · 575

• AL

  @allaboutthebuild · 2 weeks ago · pinned

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• TH

  @TheChazio · 1 year ago

  Heads up, ABS, ASA, and PA are impact strength materials. PLA, PETG, etc. are tensile strength materials. When applying force parallel to the layer lines, use a tensile strength material for better results. You should always plan your print to have perpendicular force application though as it SUBSTANTIALLY increases the strength for all materials.

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• 80

  @802Garage · 1 year ago

  Worth noting when designing replacement parts you often have to design for 3D printing and not just copy the injection molded or otherwise manufactured part. For example with the door handle surround, if there is room you could widen the tabs to increase strength and add a tapered support at the back of the tab rather than keeping the sharp L. Sharp corners in general are also stress riser areas which means they are more likely to crack at those points, so round all your corners. Print orientation can also make a difference, but it can be hard to get the desired finish then. Fuzzy skin is a good way to get a cool look if you wants something that looks more like a bed plate texture. Cool temperature testing too!

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• AN

  @ant8485 · 1 year ago

  The parts here don&apos;t seems like they were truly optimized for 3D printing. Plastic part design is its own field and 3D printed part design is becoming more of its own field as this manufacturing process becomes more and more useful and realistic for the industry. Part orientation is also huge especially for the tabs and small features, many prints are best done at an angle to prevent the forces on the part from being in the direction of the layer. Good layer adhesion is important but the part can be exponentially &nbsp;increased with part orientation. At the same time though, a plastic part should really never see any long term forces, especially clips and tabs because of creep. They can see forces and impacts but they shouldn&apos;t be prolonged to prevent creep. In the end its more than wall thickness and infill, if you are really trying to make a strong part you need to start at the geometry and then use infill, orientation, and wall thickness to further improve it.

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• AL

  @alecubudulecu · 1 year ago

  Check out PCTG. &nbsp;Instead of petg. &nbsp;It prints about the same … a bit higher temp … but also resists temperatures even higher (80-85c) without losing its structure …. And has MUCH stronger layer adhesion than petg or abs. (Also has more flex )<br>Which will help your part. &nbsp;<br>Though heed what others said about 3d printing design. &nbsp;It’s different. &nbsp;But you “can” muscle through it by just making use of different materials.

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• DE

  @derwoodvw · 11 months ago

  ABS requires a hotter chamber for better layer adhesion. those tabs broke because of bad layer adhesion. you need your bed at about 110 Celsius minimum for good Larry adhesion and also a chamber of no less than 45° c

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• ON

  @Onetwothree-e5b7k · 11 months ago

  Actually the abs part behaved like regular clips in a car 😂

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• KN

  @knavekid · 1 year ago

  The question no one seems to answer is: &nbsp;How do these materials hold up under extreme cold conditions? &nbsp;Some automotive HVAC slide controls use plastic parts that get brittle in northern winter conditions. &nbsp;If the control wire binds a bit, positioning the slider control can break the plastic part. &nbsp;While summer interior temperatures can get hot, these parts are not exposed to the sun so must maintain structural performance up to the 170°F ambient interior temperature in warm summer climates. &nbsp;In cold conditions, structural performance down to at -20°F or colder is needed. &nbsp;What material will perform over this extreme temperature range? &nbsp;Filament data sheets rarely specify cold performance. &nbsp;I am guessing that properly annealed nylon 3D printed parts might be suitable for this application.

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• LI

  @LIGMUS69 · 1 year ago

  I am impressed by the strength of these parts.

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• NI

  @ninjafatigueandbeyond · 9 months ago

  Thank you for this. I&apos;ve watched a few videos. But yours seems to answer a lot of what I was wondering.

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• LO

  @logantodd3974 · 10 months ago

  Damn, I wish you did PETG like all the others right out of the gate, not that I&apos;m sure it would have made a noticeable difference, but still lol. Great video either way, and really helped answer a few questions I&apos;ve had! Thanks again.

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• CH

  @Charlie_Chester · 1 year ago

  Now they are good looking prints coming off that machine. Nice.

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