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Need help with small part (bridging/supports)

Posted: Thu Jul 07, 2016 11:07 pm
by jcspball13
I have to make a small part for a client; it overhangs at one point towards top by .117" (2.97mm) The part is so small that supports don't seem to want to work

I am using Petg; the rest of the part prints perfect

Any ideas? Am I able to upload a part and have anyone look at it?

Re: Need help with small part (bridging/supports)

Posted: Fri Jul 08, 2016 12:10 am
by Jules
If the client doesn't care if you post the part, go ahead and upload it.

Re: Need help with small part (bridging/supports)

Posted: Fri Jul 08, 2016 12:12 am
by ednisley
jcspball13 wrote:The part is so small that supports don't seem to want to work
For things like that, I design the support structures right into the model, so they do exactly what's needed:
https://softsolder.com/2012/01/16/dishw ... rotectors/

Image

Image

There's one thread thickness of air between the support structure and the rack protector: the two parts separate cleanly in both PLA and PETG. The interior of that arch goes against the dishwasher rack, so I don't care what it looks like, but it ain't all that bad.

Re: Need help with small part (bridging/supports)

Posted: Fri Jul 08, 2016 12:25 am
by jcspball13
Jules wrote:If the client doesn't care if you post the part, go ahead and upload it.
Here it is

I thought about adding my own supports, it is just so small!!

Re: Need help with small part (bridging/supports)

Posted: Fri Jul 08, 2016 12:42 am
by Jules
Okay, try the settings below:
Untitled-1.jpg
Untitled-2.jpg

Re: Need help with small part (bridging/supports)

Posted: Fri Jul 08, 2016 2:02 am
by jsc
Or, you know, you can try just printing it as plated without supports. Unusably brittle at this size, though, so maybe Jules' plan is better.

Re: Need help with small part (bridging/supports)

Posted: Fri Jul 08, 2016 2:11 am
by Jules
That turned out well! :)