Tell us about yourself!
All necessary dimensions are shown in the photographs.
I agree, Chris. You will notice that the piece of plywood changes because the first piece of ply was too short and would have had flats on it when finished.
Gather Your (Internet Of) Things
It is not a square wave AC output, just pulsing DC. There is no alternating voltage.
Beginning to MIG Weld
Tools and Materials for Laser Cutting
Welcome to Laser Cutting
Laser Cutting Class
3D Printing Class