Anyone have dross issues cutting galvanized?

[TinWhisperer]

Welcome to the forums Bill.

@billg

Do you cut the 26 gauge over water, doesn’t it make the galvanizing look bad?

Yes I do and no I don t think so .

I wipe the water off the parts and start bending them up; the finish is not really effected.

Check this topic out where I build some square to rounds from 26 ga galvanized .

HVAC parts Square to Rounds 26 GA galvanized

I have made quite a few square to rounds over the years but this is the first using a CNC. Over the years I became very familiar with laying out and fabricating square to rounds by hand. When SketchUp came came out I started laying out fittings in that CAD environment , Acquiring all the true lengths, then stepping out the points with a compass on my sheet metal. Then I bought a bigger printer and could print out sometime 20 pieces of paper glue them down to the sheet metal, then cut out of t…

there is a video link towards the bottom of that topic link of me cutting26 ga galvanized on the Langmuir Pro.

The only thing I’ve changed since I made that post is I run it at 25 amps instead of 40 amps.