I did think about screwing it down. I’ll give it a try – thanks.
I’m definitely seeing some movement around the middle and the thinner ply would not be helping there.
Yes, wasting too much material – just got the thing working, got a bit excited rushed off and starting making the Front End Loader.
I was finding that trying to carve too much in a single go I was having issues.
So I ended up doing one or two pieces at a time, reset and go again. Hence the poor arrangement.
Initially I though the issue was steppers over heading / skipping / poor adjustment etc.
I found the model at: