snapmaker 3-in-1 pcb clamp 70x60mm

thingiverse

I wanted to use my snapmaker 3-in-1 for PCB plotting with a permanent marker. I cut my PCB's to size 70x60mm and wanted an easy clamp to screw onto the selfmade MDF platform. Cut the MDF to size an make sure it doesn't hit the z-axis. Home X and Y until you hit the end stops. Lower the pen and draw two lines at X=0 and Y=0. Align the 3d printed clamp and screw onto the MDF. The clamp uses a 3d printed spring mechanism to keep the PCB fixed. 1) Why 70x60mm? => I buy PCB's with total size of 150x200mm, I cut it in 6 pieces. 2) Why not tape or screw the PCB? => I prefer to just click the PCB into the holder, I find it easier. Just some information. I like the pen holder I use now, but a downside is that when you home to X=0, the location is a bit to the left of the Z gantry. Therefore you need to cut out a bit of the MDF platform and you cant use the full 130x130mm. It is not a big problem for me now, because I use smaller PCB's. A solution would be to offset the penholder to the right, mark new X=0 and screw the clamp to the new position. But you need to redesign a new pen holder. Another solution would be to move the x-endstop to the right, but It is build in the gantry.