Straight away I didn’t have any proof grade materials to run with, but I did have a bunch of cardboard around. The thin cardboard is from soda water… it’s like a note card, maybe this is referred to as card stock? The thicker cardboard is “Amazon” cardboard… whatever they ship with.
To play with power settings I started at full speed, then ramped up power in increments of 10. For the Amazon cardboard it was obviously not going to cut so I started jumping up in power increments of 100. But 100 and 500 speed wasn’t doing clean cuts so I jumped up to Full power and 500 speed. That cut! But seemed like it might be over kill and cause fires, so I went back to 100 power and started dialing down the speed settings until it cut through at 465 speed.
Please do chime in if you’ve got a better approach to exploring settings for NPGM. I saw this clever project for a compact block to test power settings but I’m not sure how to achieve similar on GF. Load up a series of art and manually set power settings I guess?
And finally I grabbed a clamp off thingiverse and gave it a go in cardboard… kind of worked, but the cardboard destroys itself even without a significant force from the bands. Maybe I’ll try make it two layers of cardboard deep for each part instead of one… or maybe I’ll try some real material