Ghetto-Fab CNC Almost done
February 4th, 2010
New Dremel (4000 series) and mount (which does not require modifying the Dremel) and the base is mounted. Epoxied heatsinks to the H-Bridge drivers and added catch diodes. Driver chips run cool now even under high loads. 
Took advantage of the H-Bridge driver chip’s ability to run from two separate power supplies, so now the CPU runs from USB power and the motors have the external power supply all to itself.
