Not so perfect circle

You have to do a couple of things when using the Passthrough -

  1. First you have to use indexing marks to align to. You can’t use the view that you see on the screen to place your edges, because that image has been run through an algorithm to correct for fisheye effect on the main lid camera, and the value that it shows resets after every print. (Theoretically, you can use Set Focus to reset the view before aligning the second cut…but…you’re going to get better, almost perfect results using Indexing Marks.)

The way to do that is described in a couple of tutorials below for Inkscape and Illustrator:

Passthrough Alignment using Illustrator

Passthrough Alignment Process for Inkscape

  1. The second thing that is very important is to make sure to anchor the tray, and your material against the edge of the tray as you feed it through. It has to go in perfectly straight along one edge - any rotation at all is going to mess up your subsequent cuts. You can either use the boots to lock your tray into place, or stick some double sided tape in the dimples to keep it from shifting.