Got a 3040 and tried a bit of plastic to test the detail level. I just made cables to connect it to the TinyG and ran the spindle using their controller. I like how quite it is and so far everything is working really well.
Ball screw 3040?
No, it’s the cheaper one with standard Acme threads. It has backlash. These lines are alternating direction lines. The error in the final circle was the hard stop of the back of the machine, no limit switches.
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Bummer. I got the ballscrew frame only from eBay (something like $440) some Nema23’s, and a controller and PSU and set it all up myself.
Client got this one for about $550 with 4th axis. I suggested the ball screw but he said maybe the next one, this was for his daughter to make some leather stamps. He wants one for circuit board prototyping. So once I get her set up doing her thing we will try the ball screw version, but I was surprised that it works as good as it does. I LOVE ball screws and won’t use anything on our builds.
Test etching an old piece of copper plate (not quite level). I’m liking this machine.
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After sanding detail is even better.
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