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Friday, January 24, 2025

Have You Seen Me? (Or One of My Twins?)

This is a low speed DC motor or perhaps DC motor with integral gearbox.  It is at the heart of the CrossBow equatorial platform under my big Dobsonian.  It is no longer a DC motor, no matter what pronouns I use at it.

It has no useful markings except Hsieh.  I am not sure what its voltage range was, but it was working at 5.11 VDC before it suffered a device identity crisis.  It is a 5mm shaft.

Does this look like something a hobby shop for whatever weird hobby you have might recognize?

No.  "Software engineer with a DMM" is not quite as dangerous as a soldering gun but still easily misdirected.   The new batteries were bad and at least conductor to the motor has a very high resistance.  The motor is probably good. I have ordered new cable and Molex connectors 
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6 comments:

  1. Zendo DebJanuary 24, 2025 at 11:13 PM

    Looks like a geared motor. They can be anything from 2rpm up to 100rpm or more. Verifying the size and the bolt circle is easy enough, but I have no idea how you would figure out the gearing

    For example:
    https://www.amazon.com/Greartisan-Electric-Reduction-Eccentric-Diameter/dp/B08FBDX5HX?crid=3N14X66WA4GN1&dib=eyJ2IjoiMSJ9.Ol_KcdkEiPpx7qc0KsqXar9WRh-Ff6tkZ081Eh5EniSfw8gv1ZLdDNsWwgI7a8cPg9Ne7eXT4yucrBkKEZ8J0RXpN43l6Zk6088-3nB8vcVfcdS0IBi1vruakazl6IQ9nbWQhCBgffbSYf6L9_-QAXo4L2uk3Tg2EQDg1iQKArpCppeY2E074VZLDj47UPVeAIg0iFtDf_3RuIfmx0RTufCaxkiGbv1NnHQTWWRLn086eyf5Z2KaHrjHUDU_l1ZudpxKiPb7s7bhqUIvFIpEioiraJwqlc4Y3LTZyS3pHtA89iwDqwZv7rcnL5kUctzPLZnrCoy2Dz30yIkdvyi2GrkBj0dl9PLgkeuVhogqvfN7M_1nKWUF2qClCQjqP0f23PNvX-KdKAHPKGgbvoA3OT6QrWmJgB0Dt-p02DKaDo3hduykRO2r3rbxFWOdAtK5.DV0QGkG_lkfE9eyegiSJWVEa6o3ZMaSh1iClTNmUR_Q&dib_tag=se&keywords=RB35%2B-%2B12V%2BDC%2BMotor%2B1%3A600%2Bhsinen&qid=1737785092&sprefix=rb35%2B-%2B12v%2Bdc%2Bmotor%2B1%2B600%2Bhsinen%2Caps%2C153&sr=8-5&th=1

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  2. Chaplain TimJanuary 25, 2025 at 12:20 AM

    Since the shaft is offset from center, it's a gear motor, motor with integrated gearbox. The name is most likely Hsinen, the last letter is fuzzy in the pic, a large Chinese maker of such parts.

    https://www.hsiangneng.com/. Is their website, but without more data I doubt they'll be able to help.

    If you want, I can try to track it down. Finding things is a hobby to me. Drop me a note and I'll see what I can do.

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  3. Chaplain TimJanuary 25, 2025 at 12:44 AM

    I did some basic digging, the maker of your mount died April 2023 and the website is blank. OEM parts will not be an option, but I may be able to track down a replacement with more information.

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