Spindle Encoder for Mill
thingiverse
While I'm waiting for a closed loop belt for my previous design, I whipped up a quick design to connect the drawbar hex nut to an encoder. I turned/milled the EncoderSupport in aluminum but plastic would also work. I printed the EncoderMount (hex nut to shaft) in PETG. This idea should apply to a lot of other drawbar machines. Modification to connect this assembly to your machine is probably necessary. (This works with a Rockwell Mill.) The aluminum is heavy enough to just insert on top of spindle housing. I get a little rocking and a flex coupling would be an improvement, but I can rigid tap M6-1.0 into aluminum with this setup which is what I needed.
With this file you will be able to print Spindle Encoder for Mill with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Spindle Encoder for Mill.