Feed back pots

[Riton]

there are at Conrad, 360 ° potentiometers without mechanical stops.
For me it''s a good solution.

[CraCk]

Thanks crack,
I have seen those, they look great but they are very esxpensive.

16$ is expensive?
http://ru.mouser.com/BI-Technologies/Pa ... 27&FS=True

[Bruceaust]

I priced them through another supplier at about $80!!
Thanks I will check out Mouser

[Bruceaust]

$15 each plus $39 postage.

[motiondave]

postage a killer for some reason....
I used 5 turn multiturn pots from RS Components on the foot motor sim. They cost me $35 each, but I had to put gears on them.

[Bruceaust]

Yeah, if only we could find a supplier in Aus that does not charge the earth for these otherwise reasonably priced components.
I will keep everyone informed with my hall effect experiment. So far I have found some gears from Jaycar, Hall sensors and Magnets from eBay.
Total cost for each one should be less than A$10. Plus if it works it could be modified to suit different gear ratios of the feedback. I still like the idea of mounting the feedback on the output of the motor rather than measuring the frame motion.

[CraCk]

In www.digikey.com said: 6127V1A180L.5 the shaft rotates continuously (360 degrees) but during that rotation, the sensor is only sensing during 180 degrees of that rotation.
http://www.digikey.com/product-detail/e ... ND/2620657

I think that is the ideal solution for our projects. You can not be afraid that the engine provernetsya at 360° and damage sensor. It is worthwhile to spend money. Hall sensor and the magnet is a continuous problem. So I went to HRS100SSAB090.