Quote:
Originally Posted by Sunfish
Interesting construction. A hairdryer would just blast airborne dust at your mirror. You want negative clean air flow or no air movement in a clean room.
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I didn't think of taking the mirror up to the house and rinsing it off in the bathroom. It has to be the most dust free room in the house. I polished it once more yesterday and after rinsing it and drying overnight it was mostly dust free. There were a few dried marks from the water. Not many, so I could test around these. When I take it up to the bathroom, I could rinse it with distilled water after rinsing it under the tap. The polish looks good, when looking at it with the laser pointer. It has gone a little more concave, so I will do another polish and move the lap a fraction to the outside. It is flat enough for the mirror I want for the autocollimation tester, but I want to see what happens.