- Under my little CNC mill that I use exclusively for plastic I have a
galvanized automotive drip pan (like a large baking sheet) just to keep
things from rolling away and help contain the chips. This has been
there for a number of years but today I noticed what looked like a rash
on the front part. A bunch of corroded spots towards the side I stand on.
The most recent things cut on that are acetal and ABS, so that shouldn't
I did set a steel part (mystery soft galvanized steel) on the bench near
that tray and ground a bit off it with my flex shaft grinder, could
those chips have done it? Shouldn't be the first time steel filings got
The only other thing I've cut recently is aluminum (2024 and 6061) on my
lathe next to the mill. The lathe sits in an actual commercial baking
sheet so that's pure aluminum and never shows corrosion.
I put some oil on it, hope that stops the corrosion from spreading.
Jerry Durand, Durand Interstellar, Inc. www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886