That which has been is what will
be, That which is done is what will be done, And
there is nothing new under the sun. Is there anything
of which it may be said, "See, this is new"?
It has already been in ancient times before us. Ecclesiastes
1 v 9-10
EQ-5 / CG-5 PIC Microcontroller based hand controller.
This is a DIY project to make a replacement hand controller for
the EQ-5 equatorial mount.
The standard hand controller is vulnerable to overvoltage or
reverse voltage destroying the 40 Pin microcontroller. It isn't
possible to obtain a replacement microcontroller or even a hand
controller, which results in having to buy the whole unit, stepper
motors and all once again.
This project gets round that problem by allowing you
to build your own replacement hand controller.
The Features include:
Smoother half step driving (approx.
20 steps per second) rather than the standard full step method (10
Faster slew rates of up to 25x Sidereal rate.
ability to independantly switch the RA or DEC slew buttons... Very
useful when swapping between the eyepiece and webcam view.
modifiable hex and source code for the PIC16F627(A)
Click here (or
the image) for more details
Battery Free Electric Focuser
Fed up with your
telescope wobbling about when trying to focus your webcam.
the answer, build yourself an electric focuser
from two servos, best of all... No Batteries
here for more information.
Hints and Tips
This section contains some random
observations I have made from time to time while imaging.
I place them here because there is a small possibility
that they might be of use to someone else.
Mars (and other planets) using the full dynamic range
of the webcam.
Extended Barlows, Focal Reducers and their effect on
Copyright (c) 2004 James Hardy. All rights reserved.