My name is Charlie, I decided to share my machine. I might add some photos (If I can find them somewhere on my computer).
I’ve done some Aluminum machining on it which turned out surprisingly well(6061). It cuts through plywood very smoothly. It’s actually very stiff despite the MDF. I’m hoping to re-machine out most of its parts in 6061. I welded the frame, all the MDF parts are supported by steel framing. The MDF parts were machined on a smaller shakier CNC that I handmade a long time ago. I’m planning to add way covers to all the mechanicals… eventually.
It has a 2.2 Kw(3 hp) liquid cooled spindle. The X and Y axis sit on 20 mm supported rails with 20 mm ball screws with a 5mm pitch. The Z is on 16 mm supported rails with 20 mm ball screws with a 5mm pitch. The X axis is driven by a 1200 http://oz.in stepper controlled by a G203V stepper driver @ 10 microsteps. The Y and Z axis are driven by a 900 http://oz.in stepper controlled by a G203V stepper driver @ 10 microsteps.
The breakout board is a C11T, with limit control, spindle control, driver monitoring, work-holding control, auto zeroing, and Safety Charge Pump implemented.
I left myself the ability with the C11T, to add a fourth(rotational) axis to the machine for machining cylindrical shaped molds in the future.
Thanks for reading
Charlie
