Elegoo Mars/Mars Pro FEP Tool

thingiverse

**Update 18-11-2020** v0.3 has been added! This includes thinner arms, while increasing the bump in the center to 8mm as the previous 6mm was quite difficult to screw in at times. I've also provided split versions of the frame. There are two versions, FDM and SLA. FDM have a 0.1mm tolerance at the seam for a friction fit. The SLA version doesn't have this tolerance as I found in testing that it didn't need it. The 2 split will fit angled on the bed of a Mars 2, while the 4 split will fit a regular Mars/Mars Pro. FDM versions were provided for smaller printers as well. 2 Split: Print two of the file with the desired tolerance. They can be slotted together temporarily or glued together permanently. 4 Split: Print two each of the top and bottom of the file with the desired tolerance. They can be slotted together temporarily or glued together permanently. This tool is designed to help tension FEP film properly while holding both halves of the FEP frame in place. To use: 1. place the bottom half of the frame in the tool, with the counter sunk holes for the M4 screws facing down. 2. place your FEP film on top of bottom frame, as close to centered as possible. 3. place top half of FEP frame over top of FEP film, ensuring the M3 counter sunk holes are facing up. 4. poke holes in the four corners of the frame in the screw holes. 5. tighten the four corners down. 6. Repeat for other holes. 7. Remove frame from tool. Poke holes in larger M4 screw holes to make frame installation into vat easier. ***Warning*** Re-installation into the vat will be a bit tough, this tool sets the film to be quite tight when reinstalled. If you're concerned about scratching your FEP film, I would suggest covering the center with kapton tape.