Originally Posted by
rcworld2000
ok great i have plenty of the round disc i will use one of them.. ok so let me make sure i understand now! ok someonme said that " A retract servo is not proportional once triggered it will continue to run its full travel no matter what and when it reachs its full run it will shut off with no drain on the battery " ok lets say my push rods travel is 1/2 inch to fully retract and extend . But the servos travel is 3/4 of a inch thats when the placement of the hole in the servo disc for the pushrods comes in to play . If i am understanding this correctly ?
Hi rcworld2000,
If you only need 1/2" of travel to lower or raise the retract, you need to set the distance from the center of the servo output shaft to the attachment point of your pushrod to 1/4". Since the retract servo travels 180º, 1/4" 0n 0ne side of the output shaft, measured from the center of the output shaft, will give you 1/2" of travel after completing it's 180º travel. Make sure you use something like an EZ connector on your servo wheel, so you can make small adjustments to your linkage.......
Larry / Instructor