I need feedback
Tony has suggested to go for a more sturdier printer. So im rethinking it. I want the printer to be around 16"x16"x16", im not sure about the build volume (i just want this to be a learning experience, so it doesn’t have to have the largest build volume). I would like to keep the budget at $100 or lower. Im trying my hardest to reuse old pinter and scanner parts. Any sugessuggestions or feedback? I would much appreciate it!
Modular design will be your friend here. Build simple sub-assemblies that can be tested independantly, and modified to suit your needs, then bolt them together. You’ll almost certainly blow the $100 budget, but the advantage to making it modular is that you can do a proof of concept on the cheap, and upgrade the crappiest parts a little at a time until you are satisfied.
Maybe start by building a single axis linear stage operating on a horizontal axis? Figure out how hard it is to make that work dead reliably before trying for a vertical stage, which either involves cantilevered loading or more than one part moving in a synchronized manner…
I like the drawing! It can be really neat if made from thick sheet metal (out of $100 budget, lol) or mdf. Although, the moving table seems to be using a threaded rod in the drawing, but probably you want it to be belt driven to move fast.
The thick steel plate body is not really necessary.
We have an old solidoodle 3 at work:
Riveted sheet angle sections turn out to be very rigid as soon as you form a full box. You can stand on the damn thing and bounce up and down a bit, it does not flex. If you started with a frame made from real angle iron, and bolted up the joints, I bet you could build a really solid printer frame for cheap.
The advantage of nuts and bolts over weldments or rivets is that the frame remains adjustable. A properly preloaded bolted joint is good enough to hold bridges together, should be fine for this application.