Yeah, I think you’ll struggle if it wobbles.
The Skyguider has a counterweight on the declination bracket for heavy lenses. It just about balances my Sony 200-600.
For light lenses, you can just mount directly, but it covers the polar scope so you can’t check alignment after mounting the camera.
For the 20mm, I might just not use the tracker as you can get away with 15s or so.
Very impressive, did you design this from scratch or are there some plans on the internet to follow?
The idea of a curved threaded rod was someone else’s idea and generally the web design uses gears - I decided to try a toothed belt and a chinese DC motor and gate hinge.
I have since found another guy used the same motor and several used gate hinges. For motor voltage adjustment originally, I was planning on using a raspberry pi pico but then I stumbled on a usb thing called a “buck boost voltage adjuster” which is plug and play so eliminated some faff as I can use my phone battery bank.
Wacky. Looks like one of those abandoned cities nobody wanted in China!
Prime time real estate on what’s colloquially know as Shit Island
The properties are all what seemed like good ideas at the time 
and include some top-drawer architectural pearls, so they say
I don’t live there.
It’s a beaut!
Some pair of fangs !
Shelob!
Male Tegenaria (might be T. parietina instead of the more usual T. domestica, looking at quite how long-legged he is) looking for some hot’n’steamy action with a Fat Lady -
The males are more lightly-built and leggy because they literally have to do the leg-work to find the females and mate with them.
FUCK ! OFF !
POST A FUCKING WARNING YOU CUNTS !!!
Ungoliant, more like.
P1020016 by Allan Brisbane, on Flickr
An old one from an epic day out on the bike a few years ago
Reminded me of this one I took in 2018, seems like a lifetime ago
Mine was taken just to the right of the wooden shed in your first photograph Ben 
