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Motor Drive Question

Discussion in 'Beginner's Corner' started by Seer, Jan 7, 2019.

Motor Drive Question

Started by Seer on Jan 7, 2019 at 6:19 AM

2 Replies 160 Views 0 Likes

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  1. Seer

    Seer Well-Known Member

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    Would it be worth getting a motor drive for my Meade Polaris Telescope?
     
  2. Gabby76

    Gabby76 Well-Known Member

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    A tracking motor is always handy when using higher powers with an EQ mount.
     
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  3. Ed D

    Ed D Well-Known Member

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    Only you can determine if it's worth it based on what you want to accomplish, finances, etc. RA motor drives are available on eBay for about $35-40 shipped. They come with a mounting bracket and hardware, use a 9V battery, and are pretty easy to install and use.

    I mounted a Celestron branded motor on my CG-4 years ago and it works as well, if not better than the day I installed it. Because of the side I mounted it on, the motor direction switch is set to South instead of North to get the correct rotation. No big deal.

    I made two mods to mine. Early on I found the 9V batteries varied speed as the night progressed. My solution was to solder a long 22ga twisted pair wire with a 9V battery snap on the end. I use a six AA battery holder that has 9V terminals. With the added capacity (amps) the motor speed is stable and the cells last for months with frequent use. The other mod I recently made was to the speed control shaft. It's skinny and somewhat hard at times to dial in the motor speed. I found a small grommet that I slipped on the shaft, and with the increased diameter I can dial in the tracking speed very precisely. I didn't feel a need for the larger diameter until I got into imaging deep space.

    You can see the motor on the mount, as well as the battery holder held on the spreader tray with a Velcro strap.

    Ed D

    IMG_20190101_210102.jpg
     
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