Wanted to add a idle control on, just to bump up the idle when using the OBA. Makes it fill much faster. So I put one together using a bike gear shifter. Didn't take long to do, took more time finding one! Had to go to a bike shop. Guy gave new used shifter and new cable.



Here it is idled up.
I just press pedal in to where I want it and move shifter up to hold it. This way is less strain on cable.

Funny thing is when I went in bike shop and told him what I wanted, he asked if I was building a crawler? Said he gets a lot of people buying them for hand throttles.

Now OBA fills from 0-120psi in about 20 seconds. Still have to see how it does with air tools.

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