RPF PREMIUM MEMBER
For right now, I am building a 2 x 2 foot (600mm x 600mm) rig and once I am super happy this working, I will move onto bigger things. Based on the results so far, 8 x 4 is certainly do-able.The full size of your rig is 8x4?!
Sounds like you are where I was when I first started playing with this stuff. Don't get me wrong, many people have made positive forming work including the guy in the SW section that has managed to pull a full 1:1 HIC!Cool, well you just seem to have done your homework into perfecting the whole process (I'm over here tripping over myself just trying to get my first decent pull lol).
It is the ability to use thicker plastic and have thicker walls on the pulled parts. The best vacuum forming seems to be almost paper thin which is perfectly fine for coffee cup lids. I want to be able to make molded plastic parts that are actually usable and strong. Traditionally, if you go thicker and you lose detail with male tools. Using female tools should give the best of both worlds and especially with the suction my system has, no loss of detail.The potential for detail is exponential with the right set up.