Cheapo heavy lifting servo.

Gramps

Cheapo heavy lifting servo.
Here is the original reference thread that erco posted:

Made your own monster servo lately?

http://forums.parallax.com/forums/default.aspx?f=10&m=426221

We ran this experiment and it seems to work well!
Have something for you to see, hopefully, soon.

Gramps

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'What is your life?"
Saint James 61 A.D.

Gramps

The BS2 does control the wiper motor through relays but I'm having a problem when the wiper gets close to alignment. The relays want to switch up and back and it's causing erratic action in the big motor. Would some caps across the relays help? How big should they be? Any other ideas out there?


Gramps

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'What is your life?"
Saint James 61 A.D.

Gramps

Hacking a Futaba Servo to adapt to relays. (Parallax part # 900-00005)

Disassemble the servo.
Mark one outside pot tang with white-out.
Cut the three tangs that support the pot about half way between the board and the pot.
Prepare three long leads with heat shrink and solder to the tangs remaining in the servo board.
Cut a small slot in the end of the servo case to bring the wires out.
Solder two wires to the motor leads.
Cut a small slot in the end of the servo bottom to bring these wires out the other end.
(Note: I did not disconnect the motor!)
Remove the main servo head gear and cut the rotation stop out.
Solder the pot to the correct wires.
Reassemble the servo.
Check the motor to be sure it’s running free.



Gramps

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
'What is your life?"
Saint James 61 A.D.