Knob with Encased Hex Nut

thingiverse

This knob encases a 1/4" hex nut, creating a threaded knob for use on threaded studs in various applications. The nut is inserted during print run; pause when approximately 25 layers create the hex recess. Suitable for 1/4-20 nuts or 6M with 95% printed size adjustment. Upon resuming printing, plastic may initially fail to adhere to nut but corrects itself soon. Reaming the hole with a 1/4" drill might be necessary for proper thread attachment.