Time for me to get to work! I followed your advice (Getting Started" thread)and purchased a pair of LXD-75 motors straight from Meade. I will be ordering a...
Steve, Native LXD75 mount side reduction ratio is 152.23:1. "Epoxy-molded worm" of 700:1 in a Dob will make GOTO slow. Meade Autostar has no capability to...
... Huh? What do you mean by that last sentence? The Autostar certainly allows -different- encoder ratios for the two axes. I'm not saying "you're wrong", i'm...
... Ahh... rereading the original question, i see what's at issue. It's hard to say what the Autostar would do with -very- low resolution encoders (the usual...
I would say that would be serious overkill and undermounting. "My advice is always free and worth every penny!" -Christopher Erickson Network Design Engineer ...
Dick and css_hello; thanks for the replies, but I am not quite sure that I understand fully. I have been looking at the LXD75 datasheet in the files section:...
Sorry - I don't follow css_hello's comment about encoders. If you did not have the statement about "faily low resolution" I would have read it as simply...
Steve, Bartels (Scope I and II) and Sidereal Technology servo (originally designed for Scope II) were designed originall for Dob thus bear some interesting...
Steve, LXD75 motor unit's DC perm-mag motor has about 2500RPM in its output shaft at full power. The LXD75 motor unit's built-in gearbox has 50:1 reduction,...
Ching: I think I am beginning to understand the math. You concluded that with a ratio of 152.23:1, you would have 0.328 RPM. I.e., 1.5 minutes for a full 180...
... How "high resolution" are you speaking of? Having a "real" number to work with will get you better answers. MY previous answer used a 4096-step encoder...
How High resolution? I don't have any other encoders yet, but I can tell you what I see discussed on the Scitech Yahoo forums. One of the higher resolution...
... I was hoping/expecting that you were looking at catalogs, and had ... The Meade encoder is also a quadrature encoder. What it means is there are two...
The mount is an EQ-2. Orion claims:"Provides easy one-handed tracking of celestial objects for any small telescope or spotting scope". I guessing that means...
Seems they talk of "cycles" and "pulses" "The E4P miniature encoder is designed to provide digital quadrature encoder feedback for high volume applications...
Gday George ... Cycles are analagous to "vanes" here and pulses analagous to ticks. The E4P use a photetched plastic disk to reflect the diode output back to...
... Hello, A couple of corrections for future reference. The Gurley encoders use an interpolation chip and quadranture to get the ticks. The resolution on the...
Since the quoted figure (655000) had a couple of zeros after the power-of-two number, i figured there was an interpolation stage involved. I just remembered...
I'm wanting to modify my old DS-10 to a goto mount. I'll be using the standard EQ mount it came with. I've purchased a used DS-60EC for parts to use. I am a...
... Visit Steve Bedair's site for inspiration: http://bedair.org/ScopeStuff.html And this group's owner's site: http://www.data-plumber.com ... Updating is...
Hello to everyone, I was wondering if anyone out there knows the number of teeth in an LXD 300 worm gear.I thought i would check here first before i took the...
Roboscoping a G-11 with DS or LXD-55/75 motors is certainly doable but it is more work than roboscoping a GP/CG-5 class mount. The Gemini GOTO system installs...
Hi Chris, Happy Easter to you and everyone! I think one of the solution is to adapt the DS 60:1 worm wheel to the G11 worm-shaft and drive it with a dc motor...
Hi all. It's a very interesting idea indeed.As stated it won't transform a CG5 into a GM-8 but a wormwheel and gear built with better tolerances than those the...
The Vixen GP-DX worms are cut and honed to a precision greater than 0.0005" and this is beyond what most professional machine shops can produce. I very much...
Humm i didn't know that. I do have an old SP though. What precision do you think this one has? BTW, with that kind of precision shouldn't the PE be better than...
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