
11 days ago I got my Acorn kit and started to convert a Paulimot F207 (kind of PM25) into a CNC mill.
Used 4Nm Stepperonline closed loop steppers, a ThinkPad All-in-one PC and an old XP Laptop for programming the CL57T drivers.
X was already driven by one of the Steppers with an pulsegenerator and gassprings installed on Z, ballscrews on X an Y
For making the brackets i also used only the mill with work in progress and the lathe.
First I benchtested the Steppers, NPN home switches, output for MQL cooling and a swiss made toolsensor, after this I made the brackets for the steppers, installed them and now all axes are moving like supposed to with the weird benchtest setup. Will put this stuff tomorrow in the cabinet and hope to make the first CNC part on sunday.
For me with no education in electronics it is a success to came so far this fast. Very cool and userfriendly stuff you have made Centroid team and a bunch of information bundled in one place together with this forum, so every noob can build its own CNC

Next steps are ballscrew for Z (i suppose only the overpowerd gassprings are not good enough to get rid of backlash)
Servo for the spindle ( found one wich works with 0-10V speed and inputs for Dir and enable )
Stepper on the rotary table for the 4-axis
Getting deeper into fusion 360, on my job I use a CAM system from Traub.














Kind regards
Uwe