I am installing a gear door linear servo on my gear doors. Upon testing them they worked great on 4.8V servo tester.
When I used the airplane power 6.5V A123 the motor didn't amp out as quickly and ripped the mounts off the airplane and destroyed my work.
Is it possible to have the motor amp out at a lesser value? If so, how? I wondered if I could install a resistor bud didn't know what size or value. I'm not IEEE that's for sure. []

I have done several testing myself also and broke my door...They give way too much torque, so you need to have a perfect mechanical set-up without any binding at the beginning and end of stroke....

I sent an email to Peter at altecare about the problem a couple week ago, he was supposed to as Lado what they can do...i did not got a reply back yet....They really need a programmable torque limit, but i think, encoder is the only ''safe'' way....

By the time, i'm planning to go with firgelli only, with thoose units, you can adjust both stroke end the way you want, exactly the same as it was a servo....


Alex

Can't you just put a wheel collar over the actuating rod? That will current limit it :-)

I asked this question when i met lado at jetpower. They said i could return mine and they would de rate them to a lower torque. Ive yet to do that so Im not sure how successfull it would be.

I had thought id just put some tygon, secured with a drop of cyano on the shaft and see how i got on.

Did tygon and a 3/16" wheel collar. Perfect!

Send pictures please

Pic for you. I used clear tygon and its hard to see.

Thank you.

Where is the Tygon? Between the clevis and the actuator?<br type="_moz" />

The tygon is over the shaft, in between the collar and the black case of the actuator. When you install the setup, fully extend the shaft and that will establish your mounting point with door open. Next simply close the door and when it gets close unplug the power and adjust the collar and tygon stop. The tygon acts like a soft stop and keeps the motor from locking up.

Got it.

So when you plug the power again, the motor start to spin again until it stops, but instead of breake the hinge, the collar will compress the tygon until the motor reach its designed stop point.

Isn't it?

The motor will stop when it reaches its amp limit.