Emilblanca
Member
- Joined
- Dec 16, 2020
- Messages
- 13
Indeed, I just soldered the red and black wires on the new chinese motor to where the red canon motor terminals attaches to on the small PCB. and then I think I just zip tied it to the side of the amazon motor. a little crude, but it saves it getting lopped off again. the amazon motor hole fittings perfectly lined up to the original frame holes, iirc.
And yeah I wondered why my canon motor was so weak too but i came to the conclusion that the brushes were just so old and worn, and no amount of ****ery was gonna resurrect it. So I started at looking at other motors and at first It seemed like all new motors were gonna be too strong but with playing around with resistor values I finally got the force under control.
I think i set up a DC bench supply next to the tape mahcine to monitor the motors current draw etc plugged in/injected 24v to test it. And yeah watch out for wrong motor polarity.
When I first set it up the motor was wwaaaaaayyy too strong, so definetely begin with caution. the shields will smack into the upper part of the headblock if the resistor value is too small. its fine, it wont damage anything but you dont want it like that for too long.
oh and i forgot to mention, if you roll the whole unit away from the wall you should be able to access the relays and headshield resistor without taking that rack off, they are right at the bottom of the rear next to the lower big fan that cools the PSU, its a different section to the upper pull out thing thats just for the motor drive transistors pretty much
And yeah I wondered why my canon motor was so weak too but i came to the conclusion that the brushes were just so old and worn, and no amount of ****ery was gonna resurrect it. So I started at looking at other motors and at first It seemed like all new motors were gonna be too strong but with playing around with resistor values I finally got the force under control.
I think i set up a DC bench supply next to the tape mahcine to monitor the motors current draw etc plugged in/injected 24v to test it. And yeah watch out for wrong motor polarity.
When I first set it up the motor was wwaaaaaayyy too strong, so definetely begin with caution. the shields will smack into the upper part of the headblock if the resistor value is too small. its fine, it wont damage anything but you dont want it like that for too long.
oh and i forgot to mention, if you roll the whole unit away from the wall you should be able to access the relays and headshield resistor without taking that rack off, they are right at the bottom of the rear next to the lower big fan that cools the PSU, its a different section to the upper pull out thing thats just for the motor drive transistors pretty much
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