The sun in view! A stick was placed on top to help with aiming. Going to permanently place one in the center since it worked so well. Folding legs were borrowed from my tablesaw, a blue metal shelf from my garage acts as a table top.
Detail- not as sharp as Baader Astro Solar film, but the visible sunspot proves that Venus will show up fairly well.
A shouldered lag bolt screwed in from underneath holds the box to the table and provides a pivot for azimuth. Three sliders on the bottom of the box help reduce friction.
Telescope is held in place only by the its mount screw in a slot to allow for focus movement.
Added chair sliders on the backside as well. I left the rubber eyepiece cup in place to block light from the gap.
30 seconds to go from Sun scope to Moon scope. This is less useful since the Firstscope's table top mount works so well.
Testing out the concept.
The basic idea- use the bucket as alt bearing. First hole was cut to the size of the bucket opening, the second, cut to the size of the bucket bottom. The cutouts are then reversed- the smaller placed inside the bucket to stiffen, the larger placed on the outside to lock the bucket in place. Chair sliders were used to center the bucket in front. Iron on melamine lines the smaller end.
One bucket with 10mm EP produced an image that was too small for large group viewing.
This mainly due to the f3.95 focal length of the Firstscope. The final version was extended by stacking a couple buckets together.
Lets see if this thing works. Ready....aim...oh whew, no fire!
Internals are painted Camo Flat Black to minimize reflections.
Da-Tex is held in place with elastic banding. Sanded bucket lip smooth prior to paiting.
Buckets held in place with spacers, and screws. I put stick on felt pads around the edge of the middle bucket.
The optical core. A 12" pipe or a plastic barrel might work just as well. I positioned the the supports in between the bucket lip and telescope mount to loosely lock it in place.
Chair glides to reduce friction against the telescope mount
Celestron FirstScope mount
Would have preferred a melamine lamination on the outer edge but going with what I had
Added the luann mainly to flatten the bottom of the bucket. Glued with polyurethane glue
Powdered graphite used for lubrication
Inside the Core. Front bucket cut at about 9" from top. Middle bucket has a 8" diameter hole cut in bottom. The Inside and Outside 3/4" particle board cutouts have a 1-3/4" hole drilled in center.