Center Clip with offset guid 33 & 38 mm
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Use this to center your MGN 7 and offset it from the end of the extrusion properly.
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- GNU General Public License v2.0
This jig is designed to both center the MGN7 linear rail vertically (on one side) of the metal extrusion it is attached to (Voron 0.2) and offset it 33/38 mm from the end of the extrusion end (for z/y rails).
Use the 33 mm version to offset the z rails which need to be offset 33 mm from the top of the extrusion.
Use the 38 mm version to offset the y rails which need to be offset 38 mm from the back side of the extrusion.
See photos.
Print instructions:
Since this is just for use when building the printer, print this in PLA for dimentional accuracy. This does NOT stay on the printer while printing. It's just to align the linear rails properly when assembling.
Post processing: measure the total height of the jig with calipers:
the 33 mm jig should be 45 mm in total.
the 38 mm jig should be 50 mm in total.
If you get shrinkage, try to compensate be using slicer setting or scaling up uniformly or only in the required dimention. I printed this on the blocked side, so to compensate for a too short jig (if I would have needed to) I would have raised the z dimention alone or all uniformly.
If you know your printer to be more accurate on one axis than the others, use this axis to print the length of the jigs (well, if you want them to be more accurate for the 33/38 mm offset than for center clipping).
Remember: Imperfections are not the devil. They still do a pretty good job, and with a varying amount of work they can also be always fixed.