3 ms·
Because the only usable part would be the X axis. The moving bed on the Y axis would most likely cause the previously placed components to shift around a bit
by buildsjets 5y ago
Because the only usable part would be the X axis. The moving bed on the Y axis would most likely cause the previously placed components to shift around a bit as the build progressed every time the bed changed direction. The Z axis has way more travel than needed for pick n place. The Creality motherboard is not usable for this project and needs to be replaced with a bespoke one. Building the hardware is the simplest part of the project, so why compromise and try to shoehorn someone else’s design into yours? 8020 extrusions are cheap and can be ordered pre-cut to length and pre-drilled/tapped if you don’t have the equipment to do it yourself. Everything else is just stock aliexpress parts.
- 0_____0 5y agoCommercial pick-place machines have moving 'beds' as well, and they move quite fast. SMT parts have sufficiently low inertia that the paste keeps them put. I'm sure that tuning the stage acceleration rates for max speed in development is a messy process though :p
- sokoloff 5y agoI agree with that overall, except that it seems to me like the stock Melzi board has enough IO and stepper drivers to run the physical part of a basic PnP. (It doesn't change your overall point, of course.) I think the Ender3 and clones are best viewed as a kit of relevant parts.