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50″ Mirror out of the Kiln! March 11, 2010

Posted by jcconwell in Astronomy, Observatory, telescopes.
Tags: , ,

50" Mirror blank, with yardstick resting on the top (Photo: ARI)

Progress on the 1.3-m mirror blank

The 1.3m telescope mirror blank has been completed by Peter Wangsness and is now out of the furnace and will be shipped to JP Astrocraft in Charleston for generating the f/4.0 curve. After generating the it will be shipped to Lockwood Optics in Champaign, for grinding, polishing and figuring.

Mike Lockwood and his mirror grinding machine

Mike Lockwood and his mirror grinding machine ( Photo: Mike Lockwood)

More good news; the EIU Physics students are done with refurbishing the mount for the 30″ roboscope. Next week we hope to put some new motors on and test it out…more photos to come!



1. Tyler - March 12, 2010

It’s time to have some fun putting it all back together!

2. Peter Wangsness - March 18, 2010

Peter Wangsness here. We have been experimenting with clean out procedures since this is the largest blank we have cast of this type. Cleaning out the mold material is going well and we have a finished picture soon.

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