Light foam cutting help

[WillAdams (William Adams (Carbide 3D))]

Some notes on this at:

https://wiki.shapeoko.com/index.php/Materials#Corrugated_Plastic_.28Coroplast.29

or use a drag knife:

I made a new cnc dragknife for my Shapeoko xxl

I came up with a very simple CNC Dragknife idea. Just 1" aluminum round stock, with a slit sawed at an angle, and a set screw to hold the blade. The blade slides in and out, so it’s depth is adjustable. To get the offset value for the software, I measure from the outside edge of the holder (farthest from the cutting tip), to the edge of the blade. Subtract half the holder’s dia., and that equal my offset. Simple [20191214_113346] Oh yeah, and 2 sealed bearings on a 1/4" stain…