TheLostBoy wrote:
I ended up welding a nut onto the end. Seems to work well (though the only acme nuts I found didn't fit quite right and threaded on crooked which causes quite the wobble on the drill).
Which is what I expected to happen and why I suggested this route..
Gdetrailer wrote:
The nut only has to be a "close fit", it most likely will not screw on due to different threads and might be better to find a nut that is slightly smaller diameter hole than the shaft and then drill the nut to fit tightly on the screw (slide over screw shaft) then weld in place.
Too large of a nut opening and it will be difficult to center the nut on the shaft for welding and you will end up with a wobbly out of center nut.
Once welded, get some grease or oil on the screw shaft, dry shaft is most likely why the nubs worn out.. Takes more effort to turn the screw without some lubrication and that extra effort wears out the nubs..
While ACME threads have "standards", the issue is not all of them interchange with each other easily..
SEE HERE
