View Single Post
  #349  
Old 12-08-2019, 11:21 AM
sopticals's Avatar
sopticals (Stephen)
Registered User

sopticals is offline
 
Join Date: Jun 2010
Location: Oamaru, New Zealand.
Posts: 208
Dob structure for star testing.

Recently threw together a cheapy Dob assembly to star test mirrors from 6"f8, 8"f6, 10"f5, 12 1/2" f4 (currently "housed") to 14 1/2" f3.6.

Construction cost was minimal as only used "stuff" I had lying around from
previous projects. Didn't have enough of same type of wheels for cart, so use a pair from a discarded child's toy for rear. Will get a matching
pair in due course.

Stephen.
Attached Thumbnails
Click for full-size image (IMG_4927.JPG)
183.1 KB14 views

Last edited by sopticals; 12-08-2019 at 02:46 PM.
Reply With Quote