What do you think of this idea? The bore “caps” the coupling so that the build volume gets increased by 11mm (aim is at 300x200x200mm).
That’s pretty clever. I would give it a little more clearance though, it doesn’t look like it’s got much room to breath once it’s nested in.
I gave it 2mm - should be enough. It just appears this way because of the angle.
Where is the lead screw nut? If it sits on top, doesn’t that still limit the build volume? You can buy stepper motors with integral lead screws - no coupling at all. Here is an example:
The nut sits on top of the lead (the yellow thing). Unfortunately i can´t machine trapezoid threads here. But the pointer is definetly great! Thanks alot.
EDIT: Darn, I got it now x-D
The plate will be either a 300x200mm PCB or two aluminum plates with a silicone heater. The mounts are supposed to be ultra light. 20x20mm beams.
If that’s a helical or other kind of springy coupler, you need a thrust bearing.
@Jeff_DeMaagd It is going to be mounted on the top of the leadscrew.
@Nathan_Busker I want to print high temperature with a TC and a 24V power supply. Printed parts are almost a no go for this one.