@_Michael Takes a while to heat it up and it does shrink back a lot so I put a clamp on the second one with a plug I printed. Yep, you can stretch and taper pvc with a heat gun (safe) or a propane torch, not safe and didn’t work as well.
I did print 90 and horizontal adapters for both of my dust deputies with PETG. I can post the stl files if anyone is interested.
The only stuff that seems to get through the separator is very fine sanding dust.