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trackball refit made it worse?

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Gray_Area:

I have a Happ trackball that pulled up and to the right. The bearings were crappy, so I got some new ones (from GGG) and put in some new shafts (I'd gotten a few years ago from someone here), and now the thing not only pulls in the same direction, but kludgingly so. I can't figure it.

boardjunkie:

A bearing is likely dragging. I would dissolve the grease that came in them with some naptha and oil the bearings with some light oil. Sewing machine oil is thin enough to not cause drag.

RandyT:


--- Quote from: Gray_Area on November 04, 2011, 03:15:28 am ---I have a Happ trackball that pulled up and to the right. The bearings were crappy, so I got some new ones (from GGG) and put in some new shafts (I'd gotten a few years ago from someone here), and now the thing not only pulls in the same direction, but kludgingly so. I can't figure it.

--- End quote ---

Please define "kludgingly" :)  Not sure what to suggest without knowing the issue you are experiencing, but I'll try.

You shouldn't need to do anything to bearings bought from us.  They are high-quality and already lightly oiled.

Check to make sure that everything is put back together properly and that you didn't accidentally get something stuck to the roller (it happens).  Is it bumping or sticking?  If not, you may have a PCB going bad.

RandyT

Gray_Area:

Perhaps I should've said 'grudgingly'. As in: it just don't wanna go that way real easy.

I noticed this 'worsened' behavior when I rebuilt it, and took it back apart and could find no reason for it. I thought maybe the bearings needed working, but it's been two months now, and no change.

Here is a video. No direction spins great, but up-right obviously fights hard.




The only thing I can figure is there's a flaw in the design of the housing such that the rollers aren't exactly 'square' from one another.

boardjunkie:

Trackballs aren't perfect. There will always be more friction in some directions than others. Nature of the beast due to having 3 rollers....

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