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Topics - adfuller

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1
Capabilities Question / Sharing a PSU
« on: July 28, 2015, 11:34:00 »
Sorry this question is a little left field
I have an AstroEq with 2 Nema 14 stepper motors (0.8A) and the main power supply from you (12V 5A).
I'm looking to add an ASCOM DIY focuser using an Ardunio nano, Easy driver and a stepper motor; likely a geared Nema 14 (0.8A) or Nema 17 (1.6A).
I would like to share the PSU (there are limited socket out in the field) with the focuser but I wanted to check that I could run both without issue?
Is the supplied 5A PSU sufficient for the Nema 17 or would I have to fiddle with the current setting?
Many Thanks

2
AstroEQ Support / Motors won't track
« on: April 04, 2015, 15:07:44 »
I'm trying to set up my astroeq on an eq5 mount with the NEMA14 motors with a custom pulley set up.
I've got the scope to move when I use a high speed slew, but the sideral tracking won't move it at all.
The motors just 'hiss' or sound like a tapping noise. The pulleys are on firmly but easy to move manually and don't move even when I've had no load on them, they still don't budge. Any ideas what to do?
Cheers
Andy

3
Capabilities Question / Using DIY motors without a PC
« on: January 17, 2015, 11:06:36 »
I have a Skywatcher 200p on a eq5 mount and I'm looking to add motors to it.
I hope to learn the dark art of astro photography and add on an autoguider (via a webcam) at some point.
I've been looking at the options and the "Enhanced Dual-Axis DC Motor Drives for EQ-5"
http://www.firstlightoptics.com/skywatcher-mounts/enhanced-dual-axis-dc-motor-drives-for-eq-5.html
seeming a basic but workable option until I can move up to a HEQ5. I would be willing to build my own motors and add an Astroeq for guiding.
Thing is that I live in a rental and the garden is very poor for observing so I need to have something that is portable and can work in the field - i.e. sans laptop and main power.
Is there a way to have basic tracking like the skywatcher kit would give me using diy motors? I'm assuming the DIY motors would be different than skywatcher ones (i.e. amount moved etc) and I could not configure/adapt the hand control to work with them? Also can I run the AstroEq of non mains power? i.e. a car battery?
Cheers
Andrew

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