I’m designing a partially 3D printable CNC machine and have some options regarding the motion system.
I can choose between belts and ballscrews. Currently I have 2 ballscrews. One for X which is easy but what is the best way to control the Y axis?
Either I use one ballscrew and move the workpiece back and forth or I get two of them and push/pull the X gantry back and forth. A second ballscrew significantly adds to the cost of the machine but is there any benefit to doing so?
Bed slinging seems fine for slow speed operations such as CNC milling.
I actually have a pretty decent design already, it’s just that I’m looking to upgrade to ballscrews and unlock more potential with the machine.
It is designed around linear rails that I was able to get through my job, they come from discarded equipment and I wanted to give them a second use. It has worked as a decent laser engraver for a while now.
The next iteration will have two sliders per rail on the Y axis as fortification, instead of one MGN12H it will use two MGN12C sliders. I also want to reprint the corner blocks with gyroid infill and fill them up with resin or concrete.