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I had been using Neil Martin's dial gauge holder which can mount a dial gauge in X,Y and Z - http://www.soliforum.com/misc.php?action=pun_attachment&item=77&download=1.
However since I changed the stock Solidoodle extruder to the MK3 http://www.thingiverse.com/thing:40711 I can't use it anymore. The Solidoodle is prone to backlash in Y unless the belt tension is just right, and a dial gauge that can be mounted in the Y direction is essential. It is hard to know if you have it calibrated correctly just from measuring prints.
Newer Solidoodles are shipping with a zip tie around the motor to hold it more securely to the X carriage. This won't work with those, so I will need to figure out another version that will since I want to add a zip tie to mine as well.
Slip the mount over the top of the extruder motor. You will need to open the idler arm to make room. I sized the slots to fit the tab on my dial gauge, and included a slots and hole for M3 nuts and screws to use as set screws if you tab is too small for a tight friction fit. I could do a version with larger slots if the tab on your gauge is bigger. I didn't really know what the size range would be for different models. I included a step file, so if you have a CAD program it shouldn't be hard to change.
XY Dial Gauge Mount for Solidoodle by ianjohnson is licensed under the Creative Commons - Attribution license.
So what's this mean?
We're sure ianjohnson would love to see what you've printed - take a photo and share it on Thingiverse as a Make.