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Zucca:

--- Quote from: McBryce on February 14, 2025, 01:49:31 pm ---I wouldn't recommend using a dremel for polishing plexiglas. At high speeds they can can get hot enough to scorch the glass. BTW: For fine scratches you can also use toothpaste.
McBryce.

--- End quote ---

+1

I use 1200, 3K, 5K, 7K wet sand paper. Final pass with poly watch on cotton rag.
Use only your hands. The poly watch is stupid expensive, I would not buy it again. There are cheaper alternative.

The final result is very satisfying and acceptable but far away from perfection.
That said you can restart the process again if you really want to get closer to perfection.
It's a patience game.

Don't use IPA to clean clear plastic, hot water and dish soap.

RAPo:
A NexTool W2 especially for the wrench part.

msuffidy:

--- Quote from: McBryce on February 14, 2025, 01:49:31 pm ---I wouldn't recommend using a dremel for polishing plexiglas.

--- End quote ---

I have used the (sandpaper to abrasive liquid)step down method for sanding scratches out of CDs so you can read them. I really did it for other people because I am not brain dead enough to mess up CDs. The idea is you have to get under the deepest scratch and then slowly approach a level surface. It is really a lot of work, and I never got it 100% the way a CD is. But I did read the CDs.

Messtechniker:
El cheapo Kelvin clips.
Low current/low voltage/low price.
Works for me and a 10 Ohm 0.1% resistor

Calambres:
Beware of El Cheapo Kelvin Clips. Mine were not wired as Kelvins at all!
I had to rewire them myself.

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