Micro CNC Side Clamps

I needed an easier way of holding stock on my CNC router for engraving, and I didn't want to pay >$100 for metal side clamps. So I sat down and designed my own. They work well with ample holding power and have a low profile.

WARNING:
I have noticed after a while the nut in the T-nut began to pull the plastic, so I highly recommend that if you use this do NOT leave the screws under tension for a long period of time or it may break.