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Hi John, As I said, the non-integer gear reduction has no direct effect on PEC. What does have an effect is that the error has a period that is an integer multiple of the worm cycle. Your MI-250

I just crossed 26 hours of imaging since I fixed my Gemini serial port. To recap the repair, here are the parts I used: * MAX3226EEAE+ ( https://www.mouser.com/ProductDetail/700-MAX3226EEAE ) (I

I've posted a couple of photos of my MI-250 worm assembly, in case anyone is interested.

Thank you for your reply, Paul.? Also, I appreciate the link to Mark Crossley's webpage. For the "non-integer gear reduction" I referred to, I meant the non-integer reductions between the individual

At least to my thinking about PEC, integral with the worm cycle is what's significant, not the actual gear ratio reduction. Any periodic error that repeats on a period that isn't evenly divisible into

The reason you have a PEC sensor and robust software that looks across multiple periods is so you don't have to have an exact integer (as opposed to rational) number in a gearbox reduction. Not to be

Hi John, That is incorrect. There's not even a remote possibility that gearboxes could produce a non-integer reduction. Here are some specs for gears and their ratios:

I'm catching up with twenty years of experience regarding PEC and Gemini I.? I've read Losmandy/ Gemini I doesn't play well with PEC because of the non-integer gear reduction in the stock Losmandy

Oh, that's a great idea! Next time though. I replaced the CR2354, so I'll have a little time before it dies to order the upgrade battery holder. I just did a few hours of daylight testing with my

Well done Bryan. ?Good work. One tiny observation. ? You might want to grab a CR2450 battery and holder and replace the G1 CR2354 ! Why…. The CR2450 are easier to get nowdays. The battery holders

Nice work… Sent: 15 August 2024 09:06 To: [email protected] Subject: Re: [Gemini_users_io] RS-232 interface IC and RS-232 port replacement part numbers? I replaced the serial IC, C19, C21, C44,

I replaced the serial IC, C19, C21, C44, and the RJ22 port. The bench smoke check was good and my laptop seems to talk to it ok. I’ll test it connected to the mount and the mini PC soon. So far, so

Bren Smith came up with the answer (thank you Bren)! Wurth series WE-PD2 ferrite core 5.2 x 5.8 x 4.5mm. mrn: 744774147 David From: [email protected] <[email protected]> On Behalf Of David

The schematic specifies 47uH, 0.7A. It's about 6mm square with a round bobbin. Could it be Bourns SDR0604-470KL? Thanks David

I think I did the same thing. The parts are on the way - progress soon!

Well picked up. ?I think I looked at one data sheet got the specs and another place showed slightly different specs particularly capacitance The “L” is low capacitance, the “N” nickel plate

Thanks Brendan, I'm glad you're helping chew on this with me. Looking deeper into the spec sheet, it seems like they might be the same actual part with the only difference being what sized reel they

Cheers Bryan happy yo help. ?Anything needs just ask. ? I would have thought low capacitance would be best ?to less encoder wave shape interference But maybe more could help, I’m not sure. ?If

You're right about the dirt & grass inside. I think it'll clean up fine. I'll take an extra look at F1 & the RVs. Thanks for the clarification on pin 8. I misread the schematic on the Gemini FAQ and

Bryan many thanks great images...they tell all, "the rude Gemini"hahaha Imgur does this just to cover their legal ass .? Its like a bug has got in and done its thing all around the bottom of the