Hi all! I hope this write becomes something people can get excited about. I have successfully converted a PVS 7 to accept my new monocular tube.
This works perfect and was surprisingly easy to do. I want everyone to know that I am not a "handy" person. I can barely screw in a light bulb, so anyone can do this. We can now use the most advanced civilian tubes with 2 eyes. The image is inverted so it is not good for terrestrial viewing, but for star gazing it does not matter.
Things you need to accomplish this:
1. A dremel kit or the like
2. access to a 3D printer and its software- I have all the files on a free online site called Tinker Cad and should be easily shared. I will make the files free access to anyone who wants them. I have no interest in selling them. They free.
3. I purchased a 12mm wide C-Mount lens to lock ring/retaining ring part from Precise Parts
4. Gorilla Glue or some kind of strong super glue
5. Tape as long as its not duct tape
6. Additional wires to make the PVS 7 wires longer if need be. (I just twined them and superglued them together- super easy)
The dremel kit is to cut the screw on base of a traditional PVS nose cone
I then printed a tube sleeve for the 10160 style tube to fit in the PVS 7. The Sleeve is printed to become almost flush with the collimator (about 8mm thick base)
Then I made a nose cone that the Precise Parts C mount part can fit in that will then slide over the cut original PVS 7 nose cone. This was then glued together with gorilla glue.
Now for the part that scares people: The wiring. It ends up being very easy. First thing you need to do is break the PVS 7 pins out of it.
The plastic holding the Green and White wire in is easy to snap off. The (+) and (-) on the pic indicates the charges of the wires.
You then can put those wires through the wholes and tape to the tube.
IF you dont like working with the pins (I didnt), I cut them off, stripped back some of the wire cover and twisted some other wire on and super glued.
Then you just put it all together. The tube sleeve slides in nicely. The new nose cone (glued onto the original base) screws on. The C mount glues in nicely to the new nose cone. You can put whatever lens on you wish as long as it has a 12mm screw section. My Envis lenses and the Nav 3 in the pick both have 12 mm long screw in sections.
The PVS 7 powers on like normal and the image I got is perfect. I honestly could not tell if the image was from a tube not originally made for it. The clarity is awesome. This was a real fun project and I will be happy to answer any questions. I hope the images I took help if you want to do this yourself. I will do my best to make the files easy to get.
As far as 3D print materials. I would say black Eco-ABS or Nylon would be the best choices.
Clear Skies!
Greg
. I don’t have anything other than reflectors so I can’t try that out. Might be a good excuse to get a big frac. 
