I finally got a machine working. soon it will be able to cut the parts needed to upgrade it to the intended design. the current machine was 'tossed' together with what i had on hand and a new set of keling inc. 4030 drivers and 425/oz/in motors. i need a new power supply though, to get anything near 425oz/in.. probably different drivers also.. but here are some pictures cuz that is what everyone likes!
This machine is temporary. The last image is the desired design. It will probably get McMaster Rolled ballscrew instead of the ACME ive got now. Too much friction. The machine currently tops out at 45IPM with 4x multistepping on 8 turn/inch screws and largish nema23 425oz/in steppers. These are driven by a 24v 8amp switching(ugh) power supply feeding Keling Inc. 4030 drivers. The screws on the x and y are ACME with anti-backlash nuts, and the Z is a tortured and adapted pump mechanism of some sort. Nice casting. Easy to work with it.. It has a 5-start acme and a 3:1 reduction. Seems to be about .19in/rev of linear motion. I am about to go off on a family holiday and hope to prepare all the toolpaths and files needed to come back and cut the parts for the 3D rendered design.