Obutto Revolution 2DOF + Traction Loss

your pots don't have polarity so you have two options

your motors from Canada don't need ground isolation

Thanks!

Little more progress today (real work got in the way)
Turned the shafts to except the flex couplers, need to weld the nuts on the arm side, paint. Make the Pot attachment points. Then final alignment in the software then drill and pin the shafts.

With the Pots I have, What do I do to find the center?
Trying not to destroy them first startup.

Yes, JRK's thanks for the link
I am out of town until Friday, so no more build....booooooooo

Lot more progress over the last 2 days.
All that is left is final wiring, then software setup!!! Whoo Hoo!!

nice work looks like its coming together

More good progress today! Lots of wiring and making everything plug and play.
Getting soooooo close to making this thing move! Just another few hours, and I'm off Wednesday through Sunday!!

Been wondering something. The pots I have (bourns), rotate "indefinitely"
I thought the only pots that did this are the hall sensors? This make sense?

i HIGHLY suggest double nuts on the Motor shaft. Looks like you have More than enough room with those bushing's there, Also curious why the extension bushings ?

Was going to weld the nuts on the outboard and inboard (next to the arm) also drill and pin the rod (Is this normal?) Extension bushings are there and turned to allow for a tad bit more rod end clearance.
This all make sense?

Yes the welding is a Needed thing on the Lever side for sure, But At minimum and you have the thread height for it. Double nut the Traction loss motor, Seat motor's are under far less stress than the TL motor as far as the amount of Inertia that's build up.

I understand the need for the extensions on the Outboard side, but the inside seemed a bit much is all and is somewhat limiting you being able to add a 2nd safety nut. Yes Drilling the shaft is a Wise idea Especially for TL again with the added Forces on the motor's shaft.

Rgr,
Understood and will comply.

I can taste it now..... Wiring pretty much done, double checked, triple checked... Will check again in the morning....
tired, don't want to make mistakes so I will continue in the morning (Off till Sunday!!!) should get this thing moving tomorrow!
Please double check my wiring if you would like LOL

so.....
Traction loss working , right motor working (Both controlled using the slider in the input tab, all setup correctly)
Left motor..... When I applied power after same setup procedure, motor starts continually spinning, but the pot is reading correctly...
The JRK got real hot almost instantly, little pop then a small amount of magic smoke came out... DAMNIT...
Now, the JRK utility still works perfectly, the pot still shows consistent centering and limits I have set... But as soon as I apply power the motor just spins in one direction...
Any thoughts guys?
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So I took the traction loss JRK and moved it to the Left motor (previously magic smoke JRK) reran the setup and all is well.... I am using the same POT as before.... Hummmm.... Cough it up to a bad JRK? I already ordered a new one and a spare with a couple new pots as well....
Oh well part of the game....
At least I can continue and play with 2 DOF while I wait....

@Brett Horton where did you get your JRK's from ? Directly from Pololu ? did you call them before ordering more ? They would have more than likely helped you out in some way shape or form, Tho if your 100% sure everything was wired properly. I would be Barking at Pololu to swap that unit out for Free. If your setting's were good (proven by swapping in another working JRK) then the Motor had no reason to run away, if you had the target and the Scaled feedback within range in the graph, it had no reason to run away like that, Also it would have had No reason to Fail by Just Running Constant like that. IMO that board was faulty from the get go.

Yes, directly from Pololu, I have the motion sim working and starting to tune, so yeah, must have been a faulty JRK....