Nicjolas has stopped developement on the GUS Simpson (for now) but that doesn't stop others from having a crack. I started that other thread since I'm doing a redesign.

My initial timeline was (horribly) optimistic and I've had issues in life distracting me. Since I'm working in openscadHappy I've decided to make the machine fully parametric and easily tweakable. to announce though that I've finally managed to derive all the dimensions for the machine using just one input from the user. All you need to do it tell it the diameter of the printbed you want. From there all other parts are optimized to be as small as possible. You can still easily tweak all the settings and dimensions for the machine manually if you need more space somewhere or something, but I wanted to make things easy for anyone who isnt familiar with openscad or doesnt want to fret over the small details.

Sorry to derail the thread, I just figured the OP might be interested for his collection of printers