me too , same problem

cast

cast

cast

casting

when putting it on the machine

I would not screw the vat too tightly , leave it loose

still cant see any pic .

what profiles are in the new machine ??and can you add more or tweek existing ones ??

"You can see some of my posts where the shanks and such are silky smooth"

where are the pis len ?

try adding the acid powder to the water and boiling it , make plenty for several castes , but keep it in frig so that it will be cold when you mix it , this should extend the work time more