Sharpie Pen Holder
thingiverse
A pen holder for plotting on your ToM with minimal effort. Mounts in place of the extruder and can be adjusted. This can swivel a bit when it's mounted to get it centered nicely then. It plots good for me but I'll likely be refining this slightly in the future - making it once piece and adding a little more bracing to eliminate some of the slight flex. Plot with G-code generated from Inkscape with: http://www.thingiverse.com/thing:16424 Instructions Print and then with a couple 8-32 flat screws and nuts put it together. If you want it to have a little spring place it between the cap and the base. I tried it with the springs but it was a little to sloppy so I ended up just tightening them down. I slipped a 110 O-ring into the lip I put on it to give it a little more grip. Sorry for the hardware choice but I have a ton of these screws sitting around.
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