Leather strap jig for Glowforge

I decided to use the Glowforge to engrave some designs on a leather belt, but without a passthrough slot I needed a way to wrap a long belt around inside of the machine (which you can't do with the crumb tray inserted). This jig is my way around that, allowing for clips and masking to hold the belt flat while also allowing the extra to curl around underneath out of the way.

* Cut all parts out of 3mm material and glue together (I glue the clamp cuts to make a 6mm thicker/stronger version)
* Remove crumb tray from Glowforge and install the jig.
* Center it as best as you can against the inside front of the device (it's almost exactly 80mm from each inside edge of the opened door)
* I leave a piece of masking tape in place as a reminder for the left-most edge to make it easy to reinstall
* I also tape the jig to the frame of the Glowforge so it doesn't wiggle around.
* Don't install the leather yet, but put a couple squares of masking tape at each corner of the jig.
* D