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Comment by mikewarot | Hacker News Reader

It turns out you can put a LOT of force through 3d printer parts if you don't care about getting a lot of cycles. Here's a video from 2018 of 3d printed Press Brake Dies

https://www.youtube.com/watch?v=M-fTY5L5uu0

Perhaps there is a way to feed this "press" between a set of rollers to make a harder impression?

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I saw someone on YT the other day who basically printed his part with 20% infill and a honeycomb infill pattern, no bottom, then poured epoxy into the honeycomb, and then used the resulting solid 'die' to form sheet metal. Amazing times we live in, where you can do things like that with < $400 total worth of tools from any hardware store.

Care to post the link of the video you're talking about?

I spend way too long looking for this, but here it is - https://www.youtube.com/watch?v=fxzqkhmcRlY .

You can go straight for 0% infill (vasemode).

https://youtu.be/aEoBkH05xGY

Depends on the design, I don't see how one would print the design in the link I posted elsewhere in vase mode - even if it could be made to work, it would be a lot harder for no real purpose.

you want something to keep the perimeters stiff if you care about the dimensions or if the parts aren't this small. The weight of the resin pushes out the walls.

Also depending on loading. Printed parts can be relatively strong under compression but tend to be weak under tension relative to their printed axis. Shear is a mixed bag, it does depend on layer adhesion at that point.

100% infill helps. There’s also a new method of post-print sintering in your oven using powdered salt

> There’s also a new method of post-print sintering in your oven using powdered salt

Here is the salt annealing video: https://youtu.be/nRLJ4ylGTFc

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