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New Happ Trackball rolling left
u_rebelscum:
--- Quote from: golfboyusa on July 07, 2008, 04:52:24 pm --- it can usually be fixed by cleaning the rollers or leveling the CP.
--- End quote ---
Also make sure all the bearings are clean, greased and broken in equally. If the TB is new, it needs to be broken in, might need better grease, but probably is clean; if the TB is old, it's weighted the other way.
mst3kpimp:
I just got a semi-used Happ trackball off ebay. It didn't look like it had much use so I can't attest to how old it was. I did the mouse hack successfully but noticed the drifting to the left, it also drifted up when spun left and down when spun right. I unscrewed the 6 screws to look inside. I could see that the 3rd roller that doesn't have a wheel attached did not spin as freely as the other 2. First I lubricated all 6 bearings but this didn't help. Then I took out the 3rd roller and flipped/switched the bearings which would only reverse the drifting. Then I marked the 2 bearings with a sharpie and switched one of those with one from the other rollers. This helped somewhat so I then switched the other marked bearing with one from the last roller and this seems to have evened things out. I imagine at least one of the bearings was off somehow but rearranging them restored the distribution of friction and in turn the behavior of the trackball.
monkey puzzle:
I had exactly the same drifting to the left thing with my brand new trackball from Ultimarc. I was told that this is perfectly normal for arcade trackballs, and it's to do with drag from the 3rd roller (the diagonal one that keeps the ball in place). Even the original Atari trackballs did this. I did not find that this effected gameplay on any game because you don't usually let the ball spin for that long.
However, I opened the casing and sprayed some silicone lubricant on the rollers, and this improved the problem greatly (but not completely)
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