UPDATED (February 2016): PAGE UNDER CONSTRUCTION. This page is being updated to reflect the current changes and upgrades in my setup. I am now using other alternatives such as a GPUSB or an Arduino as a means to establish communication between the telescope and the mount since the parallel port (the port used in the original version of this DIY) is now becoming obsolete.
WARNING: I assume no responsibility for any damage caused to your equipment by following the information presented here. Please proceed with caution and follow instructions at you own risk.
I this part, we will setup four things:
- the guiding software (PHD2) and the appropriate settings
- the GPUSB driver
- the web camera’s driver
- check whether the GPUSB and the guide connects without problem when used together in the guiding software
(Note: I will write a separate article on how to use an Arduino instead of the GPUSB.)
1. The guiding software that we will use is the PHD2 Guiding. Most of the settings are left to their default values, but some values specific to your setup must be entered, and in some cases, experimenting with some other values is recommended to achieve best results.
2. Autoguiding requires a means for a computer to send guiding signals to a telescope’s mount. For most mounts, especially the entry-level ones, a separate device can be used to enable the computer ‘talk’ to the mount—an example of which is a USB Guide Port Interface or GPUSB.
3. Install the camera’s driver. In this setup, I will be using a Logitech 4000 web camera. It comes with an installation CD which contains all the necessary drivers for the webcam. Drivers for most recent operating systems can be found here.
4. Test whether the guide camera and the GPUSB work together in PHD2 Guiding.
In my next post, I will describe how to connect the GPUSB to a telescope, through the ST-4 port or an improvised DIY port through the hand controller (if the mount has no ST-4 autoguider port).
UPDATED (January 2016): This post has been updated to eliminate the need for a parallel port, which is now becoming obsolete.
DIY Autoguider (Part 1: Introduction)
DIY Autoguider (Part 2: Setting-up the Guiding Software)
DIY Autoguider (Part 3: Wiring Diagrams)
DIY Autoguider (Part 4: Autoguiding and Polar Alignment)
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© Anthony Urbano (Manila, Philippines)