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Author Topic: Can Nema 14 be mounted axle to axle  (Read 3442 times)

lbim

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Can Nema 14 be mounted axle to axle
« on: November 27, 2017, 01:52:33 »

Hi,

Can Nema 14 motor just replace the original motors on CG4 in the same configuration axle straight to axle and be controlled from AstroEQ?
Stepper motors are new thing to me so questions might be obvious to other members with practice.
Have good condition CG4 with those original 2 axles motors, AstroEQ from Tom and hope to make this mount to be real goto.
Please advise.

LBIM
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rvaneynd

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Re: Can Nema 14 be mounted axle to axle
« Reply #1 on: November 28, 2017, 18:13:45 »

LBIM,

Do you have this Dual Axis motor kit on your CG4?
http://www.rothervalleyoptics.co.uk/celestron-dual-axis-motor-drive-cg-4-omni-series.html

Raoul.
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lbim

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Re: Can Nema 14 be mounted axle to axle
« Reply #2 on: November 28, 2017, 19:30:25 »

Yes, it is like on the picture.
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rvaneynd

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Re: Can Nema 14 be mounted axle to axle
« Reply #3 on: November 28, 2017, 21:27:23 »

LBIM,

Nice.. You should be able to use your setup with stepper motors.
I suggest you have a look at this: https://www.astroeq.co.uk/tutorials.php?link=/doku/doku.php?id=custommotors

I started with the motorised kit for an EQ5 and then very quickly moved to the AstroEQ with the belt setup.

Raoul.
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lbim

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Re: Can Nema 14 be mounted axle to axle
« Reply #4 on: November 28, 2017, 22:29:11 »

Here is the thing, I've read almost everything what is available here and there is nothing to mention that there is other solution but this https://www.youtube.com/watch?v=3gPiG5b2Org shows the other way. What is unknown to me is IF AstroEQ on Arduino Mega  is different than the one I've purchased from this website and if so than mow much different.
Here is a picture how it looks:
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rvaneynd

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Re: Can Nema 14 be mounted axle to axle
« Reply #5 on: November 29, 2017, 09:18:32 »

LBIM,

I see what you mean. What the youtube video shows are Geared Stepper motors directly connected to the Worm gear. And yes that will work.
But am I correct to assume that you have none geared NEMA14 stepper motors.

If so, you should be able to use them as you can configure AstroEQ with a Motor Gear Ratio of 1:1.

Do you know the Motor Step Angle (1.8 or 0.9)?

Raoul
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