Forgive me father, for it is a long time since my last confession!!!
Ok, My dob is now motorized with a dob driver II i picked up 2nd hand from gary beal in NZ.
Below are some piccies. It is very good for tracking for imaging at 1000x, but if i want to get better goto and rock solid tracking for long exposure, my alt bearing must have a larger radius of curvature.
So without further ado, here are the piccies
Last edited by davidpretorius; 21-01-2006 at 06:18 PM.
Geez Dave, it's looking more like a Dalek every day. Where did you get the Peltier modules??
jaycar in launceston next to mortys
brian, as my usb stepper motor board (that drives the focusser) is fried at the moment, i iattach the chopstick to the focusser to get the fine adjustment at high magnification....technical huh
brian, as my usb stepper motor board (that drives the focusser) is fried at the moment, i iattach the chopstick to the focusser to get the fine adjustment at high magnification....technical huh
pictured is a $310 powermate, the hand controller of a $600 dob driver, a cmos and a ccd camera say $500, a $29 cheshire and a chopstick that was free from dave's noodle box!!!!
ummmm if you put the power connectors on back the front, the diode went up in smoke. i will send it back to the supplier for repair. i can't be stuffed trying to fix it.
Tip, put diode with say 4A rating accross all power inputs on your gadgets, reverse biassed and have a fuse in line, that way if your polarity is reversed only the fuse blows. If you want better protection for electronics etc then a zener of say 14.5V (in a 12 V installation) will protect against over voltage as well as reverse polarity.
Davo....How does the mask with the 4 triangles work for focussing? What I mean is, does it do a better job than eyeballing say an image of saturn on the laptop screen without the mask?
well last night I tried a few ways. I went to the nearest star and focussed the diffraction spikes and that seemed more precise than the triangles.
back to saturn and then as the seeing as not very good, i then check the area between the rings and planet to see how sharp it was.
with jupiter, i focussed on some craters on the moon and then back to jupiter, which was everywhere. i will post the rather mediocre saturn and and jupiter - soon
you are not going to believe this, the new temp gauge does voltage / ice etc. It is a car version, but i have adapted to keep tab of the power hungry peltiers.
It has a back light that is that neon blue, so at night, it most definately is a robot!!!
