I'm helping a friend make a solar projection scope for viewing the
Venus Transit. He'll be visiting his family in Uganda during the June 8th transit and would like to show the local kids what Venus looks like as it moves across the sun.
I found a website that shows how to build a SUN GUN (too bad I can't
post the link here, but look at the picture to see).
This example uses a 60 to a 90mm refractor with focuser. However, due to the high angle of the Sun (in Uganda), this would make viewing difficult. So... a REFLECTOR with the projection screen attached to the SIDE (via a focuser) will be a better option.
No finder or EP's are needed. Tube rings would be nice though.
In addition a small EQ mount (EQ1, EQ2, etc) where an RA motor can be attached would be a nice catch. (and Alt/Az mount will work too, but 2 motors are neded and this adds the cost. If you have a setup cheap, let me know). This way, no need to keep adjusting for the kids (if you have the mount but no motor, that's OK too).
The budget is tight, so we'll consider your offer against others to see who has the best (lowest price package). Also, if your local (within driving distance) that will save on shipping too. :-)
We'll construct the SUN GUN here, then disassemble and ship to
Uganda. The plan is for the kids to assemble on their end and watch
the transit. Should be a fun time for all
(Sure wish I could go too. :-(
Thanks for your offer.
PS. If you have solar film and or solar adaptor for the OTA that
would be an extra extra bonus. :-)
(credit for SUN GUN design goes to Bruce Hegerberg) :-)