80 to 90mm tube ring adapter for astro cameras

[Ratlet]

This was more an accident than design.  I 3D printed up some inserts that allowed my Tair 3 lens to be held by cheapo skywatcher 90mm tube rings. 

They are lined with flocking material for a bit of softness and friction and worked really well to hold the lens securely.  If you've ever held a Tair you'll attest to the fact it weights over 1.5kg!

However I started to look into the zwo tube holder that holds the camera.  Now there is no way I'd try hanging a Tair 3 off the front of an astro cam with no support, but I do a lot of imaging with 200mm lens and just got a 135mm so I needed something different to minimise having to reconfigure my setup constantly.

For my Hypercam 533 I'd need an 80mm I'd insert which... Is exactly the same size as my thin insert for the Tair 3.  A quick check showed this to be true and what's more the small cutout fits nicely around the desiccant cap preventing crushing and allowing it to grip over the front of the camera rather than over the grill. 

Better yet, it also allows me to have one setup configured for all 3 of my imaging lenses as the 200mm and 135mm are light enough to not need additional support where as the Tair 3 can use one of the tube rings and a single insert.

Having tried it out indoors the friction is sufficient that I have no concerns about using it, although I'll probably make a disk to go between camera and lens to act as a stop if it did slip.

Quite chuffed about this and thought I would share.  I'll upload the stl later.

[Ratlet]

Bit late, but:

Link: https://www.printables.com/model/387915-tair-3-tube-ring-inserts

[Ratlet]

Should probably also say, I've used this a few times.  Sticks like... Well it keeps a solid grip of the camera when used with my vintage glassm

[Naughty Neal]

I liked your post Ratlet but tbh this 3D malarky is beyond me, hence why I have asked you to make a small item  for me.