Check out this cool etch CNC. Actually we were thinking of making this too, but since it’s already
made, we can learn from it and make it quicker. Awesome! 🙂
I am using a retrofit machine that fit within my budget. It’s a 2-axis machine with approximately 170x130mm travel.
The circuit board is my own design, using a ULN2803 per motor to supply approx. 0.3 amps per winding. The power supply is a standard AT hard-drive power connector, with the +12V used to power the motors. It’s a simple constant-voltage L/R drive. I made the circuit board using EAGLE, and milled it on Chris’s real CNC milling machine (which is powered by EMC and AXIS, of course).
Also check out:
Schematic of the driver circuit
via 
One Response to DIY HACK – Etch CNC
Leave a Reply
Other interesting stuff at Zedomax.com: axis, cnc-milling-machine, Consumer, DoItYourself!, driver-board, eagle, eagle-pcb, Educational, emc, Entertainment, Gadgets, Hack, hackedgadgets, layout, Microcontroller, Misc, Motor, schematic, uln2803, Zedomax
Check out more interesting categories: DIY, Educational, Entertainment, Gadgets, Hack, Microcontroller, Misc, Motor.
nice, there are some people that are pros at e-a-s