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seeker372011, yep Ed is correct.....router with circle cutting radius arm. Makes cutting circles really easy. The only circles I have cut with the router to date are the ones in the photos. The ID for the altitude bearings was too small for the radius arm so I cut them free hand........not quite so good.
Ed, the little 4" dob is one of my favourite scopes. I believe it was built by a past CAS member who was also a musical instrument maker. I think the tube in particular is a work of art. Very light weight. Sides are 2mm ply wood with an internal frame including baffles and some sort of textured fabric lining glued to the inside. This scope exhibits excellent contrast.
I made some additions and matched the staining as closely as possible:
Holder for star atlas and instruction manual.
Holder for tube end caps.
Eyepiece drawer (extended in the photo).
Small accessories box (opposite side of mount to eyepiece drawer and out of photo).
Steering handle under front of tube.
I also added a Rigel QuikFinder.
Cheers,
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