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Hi Ron. As an imager you want the new L6 firmware and PIC chip 4x code! The new code resolves the few weirdnesses some folks encountered using ASCOM based apps like NINA and SGP.? I can also say from

Using Gemini-2 Level 6 with the old servo firmware is what’s not (officially) supported. Sent: 29 August 2024 13:02 To: [email protected] Subject: Re: [Gemini_users_io] G11 upgrades (bought

I see, now that I know that I can use my raspberry pi 4 to flash it I should be able to do it together

Unsupported but workable is the updating to L6 Gemini firmware without also updating the PIC controller firmware to v3. These updates were meant to go together. If you want to temporarily update to L6

What is an unsupported combination? My mothors with the new firmware?

You can but technically that’s an unsupported combination … it will however work Sent: 29 August 2024 11:58 To: [email protected] Subject: Re: [Gemini_users_io] G11 upgrades (bought 2019)

I just found a way to use a Raspberry Pi as a PIC programmer: https://github.com/WallaceIT/picberry Since I am using one to control my telescope this seems pretty good :) Will have to test if it works

Thanks, that makes sense. That means I can upgrade to L6 without the servo updates for now? Also my G11 (from 2019) should already have the latest motors?

That is correct – you only need the PIC programmer to update the servo firmware. It has to be said that this recommended even if you aren’t proposing to exploit the x4 mode as it contains a number

Also it appears that for the L6 upgrade the PIC programmer is only needed to update the firmware of the motors, is that correct? All other components can be updated without a PIC programmer?

Hello everybody I am getting back into astrophotography and have been doing some research on available upgrades / updates to the Losmandy G11 Gemini 2 mount. Since I bought mine in 2019 it appears

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