Quote:
Originally Posted by gorrilla
like our module is supported by a lazy-susan on the bottom, couldent we just turn the encoder sideways and rest it on the lazy-susan? kind-of like a friction wheel....
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One problem with that is that if you ever need to remove a module you would need to remove the sensor as well. If you make your sensor part of the base, you never have to worry about it. I had to ruin the resolution of the picture to get it small enough to attach, but it should be good enough to show the concept. This is our base and single chain crab from this year. You can see the blue pot on the left side of the picture. We didn't use a second pot, but you can see where it would go on the right side. The pots were mounted to a small sheet metal piece that fit snugly in the recepticle (you can see it on the left). This allows us to quickly drop a new pot in if necessary. The shaft is keyed to prevent the pot from slipping, and the shaft runs down to a sprocket that the chain wraps around. The pot shafts were fitted with a collar that matched the key and fixed in place with a set screw. When we do 2 chain crab, the setup is identical.