MP Select Mini Small but cheap Z extension

Last crawled date: 4 years, 3 months ago

This is done on the V2 E3d. YMMV. I moved my extruder external to the top of the tower. ( I used "MPSM 45 degree mount MPSM by Scanjo) Usually this is done when replacing the Z stepper, but I w as just improving the bowden tube alignment. I noticed that the existing Z rod was long enough to allow 10 - 15mm more travel without further mods. The limit is when the Z carriage hits the rear tower cover. If, like me, you have removed the X axis shield and moved the X axis limit switch, it will crush the switch. Guess how I know that. So I designed a Z travel limiter that will bolt onto the rear Z rod to protect the switch. You could cut the rear tower cover to allow even more travel. In that case, forget the limiter and let the X servo hit the top of the tower.
Update: I have cut out the rear shield to give a bit extra range. I don't recommend letting it go high enough for the servo to hit the top of the tower, the z-rod is a little short for that. I put a rubber bumper of the servo to limit it's rise. This gives about 25mm expansion in all.