Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

Equipment Discussions >> Mounts

Pages: 1
HenryV1598
member


Reged: 09/01/10

Loc: Houston
drive motors on a mount
      #4524045 - 04/17/11 12:03 PM

My local astronomy club was cleaning out a shed and selling off some of the stuff inside. I ended up purchasing a box containing what appears to be an early CG-5 head on which someone mounted some motors to control it. However, none of the controlling hardware was with it.

The motors are Vexta PH268M-E1.5 motors. They have a DB-9 male serial plug soldered to the ends of the leads. The work looks like it was done by someone who knows what they're doing, but no one knows who did it or where the controller might have run off to.

I'd like to be able to connect this to a hand controller or, better yet, to a computer. Does anyone have any ideas where I could find the right hardware to do the job?


Post Extras: Print Post   Remind Me!   Notify Moderator  
jbattleson
Happily Retired
*****

Reged: 03/02/09

Loc: Nebraska
Re: drive motors on a mount new [Re: HenryV1598]
      #4524074 - 04/17/11 12:19 PM

Hi Henry,
It looks like the motors are stepper motors so will need a driver card to run them. You would also need some software to tell the driver when to turn on and how fast to run the motor.
I don't have any experience with that motor so can't give you much more info.
John


Post Extras: Print Post   Remind Me!   Notify Moderator  
jbattleson
Happily Retired
*****

Reged: 03/02/09

Loc: Nebraska
Re: drive motors on a mount new [Re: jbattleson]
      #4525382 - 04/17/11 11:37 PM

I found a little more info.
Looks like the motor is a Mema 23 bipolar stepper.
The voltage and current should be on the motor label.
Any bipolar driver able to supply the current on motor label should run the motor.
Your big problem is finding a computer program meant to run a stepper motor telescope mount.
Maybe someone in "Astronomy Software & Computers" would know.
John


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1


Extra information
14 registered and 37 anonymous users are browsing this forum.

Moderator:  Dave M, richard7, bilgebay, iceblaze 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 493

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics