AWB OneSky Shroud

A 3-piece shroud to block out light for the OneSky's truss-tube design.

Assuming your printer is calibrated, the pieces should slide easily against each other (parts have a 0.4mm gap), though depending on your telescope's tolerances, YMMV.

The existing screw holes on the OneSky aren't quite precisely oriented, you may need to fiddle with the positioning of the shroud before tightening the screws down. (Or maybe even expand the shroud holes… this may then necessitate printing some shim-washers.)

Assembly Instructions:

(Be careful; don't drop anything into the tube… Maybe rotate the tube horizontal or something.)

1. Print all 3 pieces. No supports should be needed, assuming you…
   • Print the top-shroud upside-down.
   • Print the bottom-shroud upside-down.
   • I tried to chamfer everything such that overhangs are not a problem, but YMMV.
2. Attach the bottom-mount by loosening the existing 3 screws on the OneSky sufficient to slide the piece in and then tighten the screws to lock the mount in place.
3. Gently expand the bottom-shroud to loop it over the top-shroud. The “lip” of the bottom-shroud should be on top.
4. Remove the blocking plate from the top of the telescope by unscrewing the 2 screws (recommend a low-profile screwdriver).
5. Slide the top- and bottom-shroud so they insert into the bottom-mount and fit into the top of the telescope. Rotate the top-shroud so the alignment rails mostly line up and loosely screw it into place.
6. Now that things won't fall, adjust the alignment of the bottom-mount and top-shroud so that all the pieces slide properly, and tighten (within reason!) down the screws to lock everything in-place.
7. Extend and retract the mechanism a few times to sanity check…
8. (optional) Use some gaffer/painters tape to secure the fit of the bottom-shroud.
9. (optional) Use zip-tie to secure the top-shroud against the rod.

Notes!

• The tolerances on the pieces are probably a little tight…
• … which makes finessing the pieces when collapsing/extending the telescope a bit annoying.
• Original cap still fits!
• STEP file is included; hoping someone can remix something better!