I was working on a dead Celestron Nexstar 5i mount and broke it down to see if any of the connectors were loose. Found that it had a very nice set of Pittman...
humm, it looks like a candidate for electronics transplant from a Meade DS-2000 electronics... of course some electronic tricking may be needed in order to...
In the files is Al's Non-DS Motors. Believe he worked out most of the issues for a larger set of Pittmans. Hard to believe the damn things are made in PA. I...
Okay, I've been studying the small mount (60-130mm Nexstar) motor. I counted 890 turns of the motor for one turn of the output gear and 45 "holes" on the...
... The Ratio setting is the number of encoder transitions per arcsecond of OTA motion. So the final ratio factors in the number of teeth on the final driven...
What electronics will you use to drive the motors? Can these Celestron motors and encoders simply be connected to Meade's electronics & controller? Ed ... The...
"Simply" may be an under statement. I'm hoping to use the DS2000 PCB as it is combines both motor controls and the control panel. See Meade DS2000 Failure ...
Hi George, I think the formula for the AS is pulses_per_rotation * reduction_ratio * worm_gear_teeth ... 360 * 60 * 60 Where reduction_ratio is whatever...
Is this difference due to the fact the encoder wheel is on the motor shaft for the Nexstar GT motors, not the gear reduced output shaft? Are the Nextar GT...
Thanks Daren, maybe I can talk Barbie back in off the ledge... Ed, the drives are set up the same, its just that the Nexstars' output goes directly to a spur...
Please don't make a habit of posting here every time you think of something new to type in your blog. Nothing personal but I am rather sick and tired of all of...
Hi Darren, Thanks. The PIC16C57C found in the DS2000 mount (dual motor control) has some more resources than the DS's PIC16C54. Of course it's doing twice the...
I was cleaning up this morning before the cleaners got here. I picked up a couple of DS2000 drives I had been fooling with when it struck me that if the dec...
Sorry RoboScopers! Guess I made Chris sick. No intention to spam. Just excited about the Blog. It is getting a lot of attention and am meeting new backyard...
My dealer gave me another ETX-125 to look at. This one came in with a no go Dec drive and a Motor Failure from the Autostar. After checking all the usual (and...
... Actually, it is a very -common- failure... When advising folks on Mike Weasner's site for flakey (or lack of) motor operations, the litany is to try...
HELLO TO ALL: I WANTED TO MAKE YOU SOME QUESTIONS. COULD BE POSSIBLE USE THE MOTORS DRIVES OF AN ETX-80 IN A CG5 MOUNT? WILL THEY BE TOO FRAGILE FOR THIS...
It would be theoretically possible but not very easy. Much better to find some DS or LXD-55/75 motors. "My advice is always free and worth every penny!" ...
I am new to this hobby so be gentle with me. I have a Celestar 8 on a wedgepod and an Advance Astro Master navigation computer. Is it possible to set the...
As my eq3-2 mount is now surplus to (astro) requirements, and I have replaced the ds motors on my portable gp with lxd's, I have the possibility to use the ds...
... You can (probably) make it sidereal by merely adjusting the Ratio numbers in the Autostar Setup/Telescope menu. The values to use can be calculated from...
I finally upgraded my 497 to Dick's lastest patch version (I'm a little slow). But now when I run my mount with it, I consistently got "Motor Failure"...
The only advise I would give is to paint the encoder wheels flat black if you haven't already done so. Also make sure no stray light can get to the encoder. I ...
There are some errors on that page. Hope this is clearer. The Advanced Astromaster has the ability to connect to a computer and several of the available free...
I think the ETX-60, 70 and 80 drives are all pretty much the same and the RA/Az drive is the same as used in the DS2000 mounts. The DS2000 Dec/Alt drive is...
... It's the simple hand controller from the #492 kit, that we usually throw away when roboscoping a gem (pictured here): http://www.bedair.org/492Kit.html so...
