3D Printing
D-Bot 3D printer linear rail upgrade

Background My D-Bot is now 5 years old. It has worked well, but the Z axis has been getting sloppy, tilting slightly as it moves up and down. I tried tightening the bearings with no improvement. A few years ago I had upgraded the X axis to using IGUS bearing surfaces, but these are not […]

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Laser
Converting the Laser to Closed Loop Stepper Drive

Background I wanted to see if I could speed up the engraving on my OMTech 130w CO2 laser. The engraving speed is primarily dependent on the X axis drive. The velocity and acceleration of the X axis and the lens head are the main factors to improve without losing steps. As delivered the X axis […]

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