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Jamie16v    6

I am in the process of building a goto system based around the astro eq and 3d printed stepper motor brackets.The brackets I am printing are these: Support Nema 17 sur EQ5  found on #Thingiverse https://www.thingiverse.com/thing:1833860 . Has anybody here used this system? If you've used these brackets, what gearing did you use? I am assuming gt2 belt and pulleys but the link is unclear on what size. 

Also was wondering if astro eq is usable as a standalone system, as in could I use it without dragging a laptop about? 

Probably a bit late to start asking these questions as I have already started ordering parts 😁.

T.I.A. Jamie.

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Tuomo    155

Start from here

https://www.astroeq.co.uk/tutorials.php?link=/doku/doku.php?id=custommotors

You should get fairly good idea of the parts you need. Ebay is your friend.

 

As for belts and NEMA 17 steppers: Because Nema 17 motors are bit bigger than NEMA 14, belts needs to be bit longer. I ordered 65 and 66 tooth belts. There is a way to calculate this: https://www.astroeq.co.uk/forum/index.php?topic=201.0 Remember to measure exact distance and take those brackets in to account. First I ordered same belts for both axis, but those small differences really maters and one belt was too short. I bet you are close to 66 and 65.

 

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Jamie16v    6
9 minutes ago, Tuomo said:

Start from here

https://www.astroeq.co.uk/tutorials.php?link=/doku/doku.php?id=custommotors

You should get fairly good idea of the parts you need. Ebay is your friend.

 

As for belts and NEMA 17 steppers: Because Nema 17 motors are bit bigger than NEMA 14, belts needs to be bit longer. I ordered 65 and 66 tooth belts. There is a way to calculate this: https://www.astroeq.co.uk/forum/index.php?topic=201.0 Remember to measure exact distance and take those brackets in to account. First I ordered same belts for both axis, but those small differences really maters and one belt was too short. I bet you are close to 66 and 65.

 

Thanks for your reply! How are you getting on with the project and do you find it practical?

I have already ordered the electronics. I just need to order the motors and gearing now. I'm looking forward to getting this working 😎.

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Tuomo    155
4 minutes ago, Jamie16v said:

Thanks for your reply! How are you getting on with the project and do you find it practical?

I have already ordered the electronics. I just need to order the motors and gearing now. I'm looking forward to getting this working 😎.

Its not a project anymore, its done. Mount is greased and updated from Nema 14 motors to Nema 17 motors. New belts and pulleys. All working fine and dandy! Yes, you need to have laptop around every time but thats not a problem, since I need it for DSLR too. Guiding is very good at the moment and getting better.

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