Skip to 10:45 for the acid bath
I've been cutting a lot of parts on the Torchmate plasma lately which need to be either polished or engraved. The scale on the hot rolled steel had been problematic. Many folks have discussed using muriatic acid (a.k.a.hydrocholric acid) to remove the scale - a similar process done by industrial mills in a process called pickling - but it's easy to do at home!
This video discusses the process and some of the safety tips and tricks.
see more at www.nyccnc.com and / nyccnc 5 Reasons to Use a Fixture Plate on Your CNC Machine: bit.ly/3sNA4uH
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