Trackaroo Trackmaster

What kind of accuracy are you getting on the camber gauge?

Awesome, Jeff, can't wait to try these out.

They'll be integrated into the Setup activity. When you go to enter your camber values, you can jump to the Camber Gauge app from the Setup activity directly and then it will automatically transfer your recorded values back after you have made your measurements. For Corner Weights, it works similarly. When you're in Setup, you can jump to Corner Weights and your values will automatically be transferred and calculated. BTW, corner weights are added in the next version v2.1. v2.1 will be released next week.

Jeff

I just recently tried this on a Android 2.1 OTA updated Verizon Motorola Droid with issues.

I would calilbrate it and then try to use it. On ground with top edge facing the wheel. Then back of phone flush with wheel. It would update the camber angle sometimes and other times it wouldn't. None of the update/changed camber values were accurate at all, closest was ~8deg off.

I'm wondering if this was some glitch just for me. I refunded/uninstalled that night. But wouldn't mind buying it again to try if we could work out those issues. I'd like to have it to keep track of camber in case things slip and I need to adjust on the fly.

Thanks,
Dave

I've noticed similar discrepancies with my Droid as well. I think we all know that the sensors on the Droid are pretty picky ... I hoped it wouldn't cause issue with this app since it such a great use of the device's capabilities for us data-driven gear heads. I tried to measure camber on my race wheels, which do have a flat surface at the hub area, and got measurements up to -16º ... My camber is around -2.6º.

No changes were made to the measurement algorithm. I could attempt to add a "fudge factor", but then that is likely to cause issues with other folks and other phones. Unfortunately, this is one of the challenges of developing software that runs on many different phones (HTC, Moto, Sony, LG, etc). Each has slightly different hardware and accuracy.

Jeff

I'm looking to add an additional "self-adjustment" toggle +/- as another calibration. It reports say 5 degrees. But you know it should be 3 degrees. Then you can adjust it to match 3 degrees. Next time you measure again, it will have that additional "fudge factor". That would be constant and specific to your phone.

Jeff

It's a guess right now. I'll need to do more testing with more than one Droid to narrow it down.

Jeff