Need assistance choosing correct equipment

Help & Support Robot Parts
1

I am currently building a wooden garage door for a display case. the doors is 10 inches wide by 12 inches tall. it is canvas with wood slats glued to the canvas. ( like the old style cabinets that have the sliding door that curves)
I need to use a Servo that will run from 0 degrees to approx 150-160 degrees and will reset itself to 0 when power is cut off. the servo will have a 4 inch bar attached to it that will pull and push the door open and closed. the most resistance i think it will have on a bad day is maybe 5lbs. the doors itself is less than 1lb.

any assistance on what i should use would greatly appreciated. i am completly ignorant when it comes to this subject so if you could explain what i need in lamin terms would also be very helpful

thank you for your assistance.

2

It sounds like you need to rotate the door about one end, so the torque you need is 5 pounds multiplied by 0.5 feet = 2.5 lb-in, or roughly 480 oz-in, whereas the torque needed for the door itself is closer to 96oz-in. If oyu don’t design for worst case scenario, you might consider the 805BB or the S677.

With regard to a servo motor controller, we don’t carry anything which can simply operate the motor as on/off since servos need a repeated signal. We do offer small programmable servos which can accept a button as input, but again, you’d need to program them. If power is cut, the servo will stay in its last position and gravity might make it fall to an equilibrium position. We don’t offer electronics where if the power is cut, they can still take decisions.