Trim for motors

[billbo911]

Originally Posted by nate15810

does anybody know any codes for trim for some ofthe motors?
we have an arm and 2 DC motors do not have enough torque to keep it up.

it needs to keep some power on the motors on all times.

Ahh, sounds like you need to counterbalance the arm.

There are several ways to do this. Add weight to the light end, like maybe using the motor it's self.
Add spring tension to the rear. Surgical tubing seems to be very popular.
Add a gas spring to the front side. The options are as numerous as your creativity.

Now here is something we might have tried this year if we had a need for it.

The pressure regulators are "relieving" regulators. That means that the low pressure side will be bled out if the pressure in that side exceeds the regulated setting.
So, use a piston to add a constant force lifting the arm. Set the regulator to the amount of force needed to balance the arm. The motor will then only be lifting the weight of the object being lifted or lowered.