JoJoOne Grub Screw Remover For Geared Extruders

myminifactory

So your grub screw hex key is rounded and you've searched and tried the usual solutions, but now it becomes apparent that you have to drill that grub screw out even with a drill mill - this is a pain, hard to clamp, easy to damage. Well, no need to fear, JoJoOne is here! The JoJoOne Grub Screw Remover will help you remove that grub screw without damaging your motor, extruder gear or your hand. It works by securing the motor and locking the shaft from rotating, allowing you to drill the screw center out. The grub screw remover is for geared type extruders, although it could be adapted for other types; I'll include the Step files. How to use the JoJoOne Grub Remover: Place the stepper into the remover, aligning the gears and grub screw to the drill guide slot, and press into place - it will be tight. Secure the motor with four bolts. To use with a drill stand or mill, there are clamping points on the side; to use with a hand drill, there are four holes on the bottom to secure it to a bench. Use an appropriate drill size, usually 2mm. The aim is to drill the centre of the grub screw out, not the whole thing - this would damage the thread. Drill out the grub screw center; this should now allow you to slide the extruder gear off the motor shaft and will leave the remaining part of the grub screw loose. This should be easy to remove from the gear with a torx driver. JoJoOne Tip: Small diameter drill bits need to be run at a higher rpm or they'll snag and snap; using some thread cutting oil helps. I hope this helps you fellow inventors, designers, and makers out of a pickle - as always, Robojojo1 needs those likes to keep his operating system running gears lubed and motors tuned. Anyway, please be so kind as to click the like button or leave a crypto tip if you think it's a worthy thing.