adjustable bed for K40 Laser
thingiverse
Christmas is the perfect time to play in my laboratory and workshop. The video at youtu.be/1mPsXdkFD6s shows me adjusting the focus distance for different object heights, which can be a real challenge to do manually. I created a stepper motor-driven solution using some random parts from my shelf, which made things much easier. I also added a simple attachment for my rotary axis, available on thingiverse.com/thing:2687482. When it comes to my K40 machine, I recommend cutting back the exhaust and adding a square hole (320x220 in my case) at the bottom. My build consists of 1 Nema17 stepper motor, 1 EasyStepper for testing only, a simple electronic board with buttons and digital display to control up/down/speed and track the actual height using Arduino/ATiny85, which is still in development. I also use 1 Powersupply 12V 2A, 4 bearings (8x16x5), 4 bearings (6x14x5), standard M8 spindles, Alu plates (6mm and 3 mm), and a belt length of around 1230 mm. I printed 5 GT2 pulleys using my D7 and 4 "Fuss" parts with FDM filament Recreus flexible. Don't miss this: thingiverse.com/thing:2749445.
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