I think there may be a way to do effective PEC with a strain wave gear. Basically, characterize at least 180° and maybe even all 360° of the gear with a tracking compensation data set. Not a big deal

For those that want to discuss the ZWO AM5 mount, there is a new groups.io group for doing that. https://groups.io/g/ZWO-Astro -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitk

How fast was the slew? In cases like this, the likely culprits are, in my experience: 1. Software-related issue. Could be a crashed program or module. Or a miscinfiguration. Or a combination of an unu

Ugh! "Always take the high road. There's less traffic." -Christopher Erickson Observatory Engineer Summit Kinetics Waikoloa, Hawaii

Yikes! The hottest I have ever seen here in Waikoloa is 92F and the nights are usually between 65 and 80. I think I'll stick with Hawaii! Not to mention that I am at 19 degrees North Latitude and can

Actually it isn't very difficult at all. The pathway through the mount is large and threading through the motor cable, a USB cable or three, and a 12V cable is very easy. Personally I have put a NUC o

Absolutely. -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

The LX200-16 tripod will work without much effort but it isn't very pretty or versatile. I have one so I am speaking from experience. It would be very simple to place the AP 1612FSA Flat Surface Adapt

Mirror flop. Orthogonality. Loose dovetail bracket. Loose mount DEC axis dovetail locks. Loose auxiliary focuser. Loose camera bits. Loose secondary mirror. Flexing tripod/pier. Loose tripod/pier bits

Like I mentioned afore, I do everything in UT in observatories. Best solution possible. -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

Here's another vote for the StarGPS.ca solution. "Always take the high road. There's less traffic." -Christopher Erickson Observatory Engineer Summit Kinetics Waikoloa, Hawaii Virus-free. www.avg.com

...and most USB connectors and cables are junk. -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

One thing I do is to set all of my astro-devices that have timing to UT with no DST. Observatory PC's, imaging PC's, hand controllers, etc. In observatories I like to have clocks showing LT, UT and ST

Funny enough, every Thanksgiving and Christmas here in Hawaii, before COVID, my wife and I would host a "Thanksgiving in the Land of Misfit Toys" for all of the elderly, widowed, single or just lonely

I configure ALL my mounts to use UT. -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

Could be a cable or connector problem too. Or a popped USB port. -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

What a clear and concise explanation! -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

If the hand controller battery was replaced at some point then it is almost a certainty that the object database in the hand controller was corrupted by the bad battery, or got corrupted when the batt

To me, some of the possibilities are: 1. Orthogonality/Cone-error. 2. Corrupted hand controller. 3. Misconfigured hand controller. 4. OTA/attachment mech problem. 5. Motor optical encoder problem. 6.

Nope. CPx controllers (that aren't connected to Abs axis encoders) have no way to know when they are moved between mounts and they always assume the worm gear and wheel positions they currently have s