Cantareus

Posted By Cantareus on February 15, 2010

I’m in the process of making a CNC machine out of aluminium. The finished machine should be able to work with a 400×400x60mm volume, I’m making it small because aluminium is very flexible and I not sure if I’ll be making anything much bigger than that. I’ve almost finished the z-axis mechanism. It uses a DC motor and will have an optical encoder mounted to the thread. The optical encoders I’ll be using are from printers and generate  about 7200 counts per revolution which should give it more accuracy than stepper motors would.

Here’s a video of what I’ve got so far:

The movable part slides up and down a pair of stainless steel rods. There’s a bit of slack, but that might go away when I tighten everything up properly.

The X and Y axes will use skate bearings on aluminium angle.

Category: Electronics, Technology
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