Electronics

Guitar Effects

Visit my old Analog Alchemy page over at diystompboxes.com for some guitar effect schematics and related things.

Experimental 50-watt guitar power amplifier.

CNC Machine

My late father and I built this CNC machine. I designed the PCB for the motor control unit and wrote some software in Javascript which generates G-Code for certain things.

The machine is rack-and-pinion with an Acme screw for the Z-axis.

The motor controller uses L297/L298 chips. The L298's run hot, hence the large block of aluminum for a heatsink.

Inside of motor control unit showing the power supply and fan. It uses a parallel port connection to the PC.