Sony E-mount lens to use with ZWO ASI small camera

thingiverse

I took dakloifarwa's Sony E-mount to ZWO ASI camera adapter design ( https://www.thingiverse.com/thing:2550816 ) and modified it to print it as single unit. These cameras have M42/0.75 female thread with 12.5mm backfocus according to manual diagram. Since E mount has flange to focus distance of 18mm, this adapter length should be 5.5mm but Sony E-mount bayonet takes 5mm and needs about 0.3mm margin and I don't want to make 0.2mm thin layer connecting bayonet to M42/0.75 thread. So, made it 0.3mm longer to make connection at least 5 layers of 0.1mm, which seems stable. That would be weakest link, and you don't want to over-tighten M42/0.75 side. I'm not able to fully test this adapter because my 35mm F/1.8 lens doesn't allow me to manually focus once it's disconnected from Alpha body. So, couldn't test it with actual star. If you found this doesn't focus to infinity, leave comment whether it's too long or too short. I'll update design accordingly Note that Bayonet will be very tight. I didn't fix intentionally. Print with 0.1mm layer height minimum for M42/0.75 thread. You need support enabled to print. Orient model to put bayonet side down. If this adapter doesn't work, please feedback. I have another idea to design this thingy.