Thread: Black Vent Motor Tutorial (Part 2)

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10) Use a pair of pliers to hold the outside of the motor shaft while continuing to turn the screw into the motor shaft hole. Turn the screw into the hole until the head of the screw is about 1/8" of an inch from the shaft. Once you are finished, it should look like this:





11) Remove the screw from the motor shaft. Make your motor crank whatever length you desire and drill a 1/4" hole at one end of it. Add a 1/4" lock washer to the screw and insert it through your crank. Then screw the crank onto the motor shaft, again holding the shaft tightly with a pair of pliers. Turn the screw until the head is tight against the crank.
When done, your motor should look something like this:




12) Solder the wires of your AC/DC adapter to the wires coming out of the motor and you're ready to go! (If you want the motor to turn in the opposite direction, just swap the two wires.)
That's it! I hope this helped!

END

Thanks Dave! This helps a lot...

Dave, thanks for this great tutorial! I love the step-by-step pictures in this and the first part. I have several of these motors but never actually brought a project to completion with them. I had started working on the tombstone peeper a couple years ago, and remember that it was really difficult to solder the wires with the motor case on. This way seems much easier.

Thanks SavageEye and Cinders!

Yea, like I said I used to solder the wires straight to the gold pins, but it was a big pain and I always ended up with the wires not adhering properly. They would eventually just come off, like they were just glued on.

I hope you can finally complete your project, Cinders!

Thank you so much for writing this up!!!

I love these gear motors & use them in several of my home made animated props. Most notably, my wall breaker (Here's Johnny's design), and my floating lantern. Tbh, I wish there were a wider range of ultra low rpm gearmotors near the price range of these. At $50+ for the Dayton styles, they eat into the budget pretty quickly. Unfortunately, there just aren't many alternatives.

Are there any voltage or current limit ranges on the power adapters for these motors. I just ordered 5 of them

I'm not really sure. I always use the 12 volt AC/DC adapters, rated anywhere from 100 milliamps up to one amp.
Mostly I use the ones rated at 500 milliamps.

Originally Posted by jnelson217

Are there any voltage or current limit ranges on the power adapters for these motors. I just ordered 5 of them

I burn one out by using a 30vdc power supply It ran for 15 minutes and stopped.

I used the following power supplies with out any problems (volts lower than 11 or 12 will slow the rpm down)

7vdc

9vcd

11vdc

12vdc

17vdc

As far as amps goes I used power supplies with 300ma up to 6 amps without any problems. The motor calls for a 12vdc, 400ma power supply but remember that the most it's going to pull is what it's rated for......400ma. Even if your power supply can put out 6 amps the motor will only draw as much as it needs.

I'm going to guess the intended limitation on voltage is around 15 VDC. As the original applications will see 14.4 to 15 VDC dependent on how good the voltage regulator in the alternator is. Many companies market them as 5 rpm motors, which would likely be at 14.4 V (nominal alternator output voltage). It would be interesting to see if how much voltage they can actually take.

I've always ran mine on a 500 ma or higher rated transformer w/ no problems.