built a rotary for my TTS-55.
I used “Rotary Axis for Laser Engraver” by Perinski”
I tried to build the whole thing without many small parts (no dowels, no sleeves, no threads to melt down)
I also used an original TTS-55 stepper.
Hopefully you can see the assembly from the pictures.
So that the small rods with the o-rings do not slip, I glued 3 rings on the outside and 3 rings on the inside.
In the 8mm aluminum tube is an M4 threaded rod to screw both sides tight.
I have already tested settings for Lightburn more or less successfully.
You are also welcome to tell us about your experiences.

5mm to 8mm 5x8mm Flexible Coupler of Stepper Motor for CNC & 3D Printer 









