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Main => Main Forum => Topic started by: obizues on February 10, 2019, 08:46:19 pm

Title: 3” HAPP Trackball not Moving Freely and Scratching
Post by: obizues on February 10, 2019, 08:46:19 pm

Hey everyone, pretty much what the title says. Is there a screw or something that would have offset something or forced something over by the trackball that would cause it to scratch and not roll well?

It’s a 3” HAPP

Title: Re: 3” HAPP Trackball not Moving Freely and Scratching
Post by: RandyT on February 11, 2019, 09:57:20 am

Check the optics PCB's.  Sometimes there can be some slop in the channels in which they are nested.  If there is, one of them might have moved and one of the encoder wheels could be scraping it's opto-interrupter component, due to the tight clearance.

Title: Re: 3” HAPP Trackball not Moving Freely and Scratching
Post by: Mr. Peabody on February 11, 2019, 03:57:32 pm

Or he could buy a real trackball from U or you......

Title: Re: 3” HAPP Trackball not Moving Freely and Scratching
Post by: RandyT on February 12, 2019, 01:07:35 pm

Quote from: Mr. Peabody on February 11, 2019, 03:57:32 pm

Or he could buy a real trackball from U or you......

Pretty sure the HAPP 3" is a real trackball :)  But this can be an issue on any trackball with a similar design.  Usually a quick alignment and a little hot melt will be a forever cure.

Title: Re: 3” HAPP Trackball not Moving Freely and Scratching
Post by: Mr. Peabody on February 20, 2019, 07:00:52 pm

I don't recall experiencing a decent Happ, even after replacing bearings and shafts, which suggests the housing make is bad.