Greg SaunierApr 13, 2024

I wish we could find a better solution than grub screws for attaching pulleys to shafts in 3D printing. Small-scale requirements make it difficult to use other industrial systems.

Grub screws often loosen under the effect of vibration even with Loctite. They also introduce eccentricity. And the tip of the grub screws marks the shaft, making it difficult to remove the pulley.

Any idea how we could improve this?

#3dprinting #3dptech #3dprinting_tech #pulley #motion #belt #grub_screw @3dprinting

Show threadDennis.Apr 13, 2024
@bear_lab @3dprinting Mh. Maybe just cut a thread into Shaft and pulley and secure it with a nut? Personally, I hate these little set screws a lot, too😁
Show threadMichael K Johnson
@brokenminded @bear_lab @3dprinting Threads aren't precise locating features, and if this isn't concentric you get meaningful inaccuracy in the resulting prints.
Apr 13, 2024 at 7:33pmWeb