These are the 12 mistakes and exactly how to avoid every one of them. Grinding Errors, Bad Decisions, Polishing Blunders, and Figuring Mistakes with Gordon's Fixes. Every mistake described here is something I have personally seen, and in many cases, something I have done myself. My hope is that by sharing these experiences, I can help you avoid unnecessary frustration and spend more time making progress. Illustrated with shop photos. 24 Pages.
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One lesson I’ve learned after decades of making telescope mirrors is that most problems can be solved by going back to
fundamentals. Listen to the grinding action. Pay attention to your test results. Keep your lap in good
condition. Work methodically. When something doesn’t look right, don’t panic. Slow down, understand what
the mirror is telling you, and make the next good decision.…
My hope is that by sharing my experiences, I can help
you avoid unnecessary frustration and spend more time making progress.
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