12-28-2016, 01:34 PM
Made an interesting discovery. After polishing I was using Window cleaner to remove the residue from the cutting compound. Think the ammonia in the cleaner was oxidizing the aluminum. I repolished and washed it off with water.
Also straightened out the crane rail.
Also straightened out the crane rail.
Free advice is worth exactly what you payed for it.
Greg
Greg