What are the reasons why any of these mills cannot cut steel?

[Spamming_Eddie]

Hi Afrio,

You might be interested in this here topic if it is only cutting through steel you seek to do.

Longmill CNC Plasma Cutter First Cut

This is the first cut with the Longmill CNC plasma cutter. I used Inkscape to design the file, and Vetcric Vcarve Desktop to create the tool path. Then I used G-Sender to send the g-code to the Longmill CNC plasma. [Longmill CNC Plasma cutter First Cut]