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I am not sure why they used needle bearings in the RA and DEC axes.? Tapered roller bears are really the bearing of choice in this application.? The taper roller bearings combine the function of the

Peter, That's the right side journal that moves to adjust the backlash. I thought it was funny that it wouldn't be anodized but the cut is definitely not right. I purchased the OPW as a standalone. I

Jim, That's not right. It looks all chewed up. They are smooth and black on the bottom. The left hand one has no movement in it's hole. The right hand one can move a little in it's hole. They ought to

Brian, Here's the logs from the other night. Last night something happened with my NINA sequence and it's all screwed up. There's also a picture of one of the bearing blocks that came with the OPW

Keith, Thanks for this input. You could be entirely right about the 80s error. I too have speculated about this and the McLennan gearboxes. Although its pretty constant in magnitude between the 25:1

Peter: * The left arrangement in the photo does nothing as it follows the shape of the bearing itself and there is no spring force at all (I noticed this when I first tried the washer as well) * I

Chip, Just to be clear, the arrangement on the left places pressure directly on the ball race as shown in the drawing, while the arrangement on the right place pressure on the outer shell? You are

Michael B-Y has tallied quite a list of design concerns. Comments and known solutions: ______ Clutch slippage: The slippery clutch problem (losing index position relative to motor tick position, and

Hi Rodd, I do have a Gemini 1 that I believe is in good condition.? I upgraded my Titan to Gemini 2 last year.? No idea of fair value or shipping costs from USA. Michael

What are expected RMS arc second guiding numbers? new G11G users are getting?? -and at what focal lengths. This is for the new G11G with the spring loaded worm. Thanks for the input everyone!

Chip, OK, since I have gotten several push backs on this, and since I have quite a few guide logs that show a consistence error, I will reverse the washer and report back. I truly hope you guys are

Keith, This arrangement produced the lowest PE for me and I think I tried all possible arrangements .? My thoughts as to why this is, is? it is equalizing the pressure why the worm being driven into

Just saw this, 100% correct! -- Chip Louie Chief Daydreamer Imagination Hardware Astropheric Weather Forecast - South Pasadena, CA Astrospheric Signature (

This drawing has an error probably because you saw Michael Herman's drawing and don't understand how this is supposed to work. The bearing's outer shell is the part that is pressed by the spring disc

The washer in the drawing is backwards (should be contacting the outer race). Keith

I have a hard time believing that there is a 43 minute periodic error

On Wed, Aug 4, 2021 at 08:15 AM, <pcboreland@...> wrote: > > On Wed, Aug 4, 2021 at 02:27 AM, Michael Ben-Yehuda wrote: > >> Use of axial needle roller bearings for the RA and DEC axis shafts *

Jim, As you know this is a bearing problem. Try this arrangement with just the one spring washer. Also I fou

I think as a group we have hit upon the loose fit of the shaft in some but not necessarily all cases is perhaps a foundational problem that it is creating a fore-aft force on the ring gear. If this

Michael's clutch discs are material similar to those used in Celestron Nexstar GT, 5/8 and 6/8 models for the last two decades. In the Nexstars they are designed to slip to prevent damage to the drive