"When I built these tanks I used the pins method and had a nice spiral carbide router bit that left perfect edges. When doing the glueing process I waited 45 to 60 seconds before pulling the pins out .you have to get a good feel for when to pull the pins out or it wont melt the acrylic together and then you do get bubbles." What is the pins method? I don't remember ever hearing that term used before.
Is that where the pieces are separated with pins, until the glue softens the plastic, then the pins are pulled out to let the pieces contact each other? Like veneer is glued to sheets of wood?