It sure is doing things the hard way, but if i can figure this all out it will be worth it in the end.

I tried to make an acrylic part to make a mould from, I think I need to start with a slightly larger sheet and it will work.

The top left corner let go and the sheet went all wavy.

That uses up what I had lying around, so I will have to buy some now. at least I did my learning with scrap. I'll see if the sign writers near work can help me with some offcuts.