Collimation Mirror Holder/Mount

To collimate my C11 or RC in my garage, I needed an artificial star.  The artificial star was easy enough to find, but I needed a convex, spherical mirror to increase the distance between my scope and the artificial star.  Sized to fit a 3"/75mm diameter mirror.  

Printed in PETG.  

Artificial Star

Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes (agenaastro.com)

Mirror

EISCO Round Convex Glass Mirror - 3" (75mm) Diameter 300mm Focal Length 1.2mm Thick Approx.- Eisco Labs: Amazon.com: Industrial & Scientific

Additional Hardware:

• 3x M3 Hex Nut
• 3x M3x12 Screws

Print 3x clips and press hex nuts into back of clips.  Screws will be slightly countersunk in base.  Slot in back is sized to fit a random screw for hanging on the opposite wall of my garage. 

Have fun and clear skies.