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Unread 03-04-2007, 12:56
jmcr8on jmcr8on is offline
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AKA: Jim Creighton
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Re: 1189 - Human-Bot Arm Control

Quote:
Originally Posted by vivek16 View Post
where did you guys get your potentiometers?
ive been looking and i cant seem to find any that specify that the input from them is through pwm cables
Yeah....well...I am not sure that any company would really want to embrace PWMs as a connection standard....

That being said we clipped PWMs and soldered the female ends to the pots.


***Ugly #1*** We use cable bundles to get from the RC up the mast/arm with a DB15 disconnect between chassis and mast. PWM cables are soldered to the DB15 on the chassis. PWM cables are soldered into the cable bundle to connect to the PWM cables soldered to the pots and other sensors.

*** Ugly #2 *** For this human-arm application we used DB15 (game port) to Cat5 cables to modular connectors...to Cat5 cables to the vest....then to modular connectors...back to Cat5 cables..then soldered on PWM cables...to the pots. We wanted the ability to disconect the vest assembly in multiple places therefore the use of Cat5 modular connectors.

and...we are always looking for a better way to manage connections across the bot and also the OI. Suggestions?

We used the pots referenced in this white paper: http://www.chiefdelphi.com/media/papers/1743

We bought the pots from Allied Electronics (www.alliedelec.com)....the account exec was VERY helpful and even assisted in getting pots from another supplier when he was short of stock.
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