Solved I have developed a bit of a wobble.

Any ideas what I can do short of buying a new threaded rod?

 

Mine has had the wobble since day one and it doesn't seem to be an issue. The motion may cause a screw or two to work their way loose at some point though.

 

everything is still tight for now. but its a pretty big pain to have to reach in each time to stop the crazy shaking.

 

That's pretty crazy. Don suggested in the shoutbox trying to loosen the motor screws a little and recentering. I think that's a good idea.

Very little wobble otherwise though, just that loud ratcheting sound

 

Ya I just saw that I guess I will have to give that a try. I guess the speed is just perfect for the amount of off centerness if you get what I'm saying.

 

You tend to print at a higher speed regularly right?

 

No I always print at 50mm/s or less usually 40

 

sounds like stepper motor.. if you mean the z rods wiggling around, ive had 2 robos and they both did that. there's guys that sell perfectly straight rods.

 

Fixed with grease. such a dumb bum

 

the threads? I used a little graphite on them. the thing is almost silent when Z axising now.