Don't mess with the power

[PJgearhead]

Gday you lot, thought I might add this to Tips n Tricks.
Don't mess with the power supply when you are printing.
Two hours into a print and I unplugged my soldering iron from the 4way powerboard that my printer was connected to.
After a slight pause in the printer it continued to print... about 2mm off to the left of where it was before.
Strewth was I annoyed lol.