3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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CNC design with ballscrews. (discuss.tchncs.de)

submitted 1 week ago by Rolive@discuss.tchncs.de to c/3dprinting@lemmy.world

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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.

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[–] Rolive@discuss.tchncs.de [S] 4 points 1 week ago*

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.

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