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A bit lost .... how to computerise an EQ3-2?

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3 minutes ago, pedromreis said:

maybe nice for a dslr? is it usable with a sw 150P-DS?

A 150pds with associated bits would be way too heavy for an AZ-Gti. I have both. 

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If you can go without the GoTo system then there's a kit to install motors on the EQ3-2 with a basic hand controller which does have a ST4 connection for autoguiding. Sky-Watcher Enhanced Dual-Ax

ST4 connection goes between the guide camera and the mount. You use a USB connection from the guide camera and the PC so PHD2 or other guide software can sent the guide pulses via the guide camera.

Operationally there should be no difference. The dual axis motors move the mount more slowly (the max speed is 16x sidereal rate compared to 800x for the full goto Synscan) . The motors drive t

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I also have a diy astro-EQ, which I used to convert an eq-5 to goto. I bought the two programmed chips and a circuit board from Tom's website for £12.70 delivered and then made it myself. Had never done anything of that level of soldering before, but it worked first time (no-one more surprised than me 😂). 

The surprises keep rolling in as it is still going strong two and a half years later 👍. Highly recommended. 


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I'll take a shot at this since I don't need to buy anything to try it but my spare time... if I decide to implement it I only need the a box to enclosure all, motors mount, some pulleys and the timing belt... so Maybe next weekend I'll give it a try...

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I don't appear to have any contact details for Tom I'm afraid.  The only thing I can think of is to try to contact him directly through the website.  I suspect however that it will go to the same place as the signup requests.


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