by TLHarrell » Tue Dec 03, 2013 8:52 pm
The cold shouldn't do anything to the bare tube. With water in it, if it freezes it will break.
40w Full Spectrum Engineering 5th Gen Hobby 20"x12" w/ Rotary Engraver
South San Francisco Bay Area - Sales and Support Representative for Full Spectrum Engineering
408-47-LASER - Skype: whitelightlaser-thomas - Facebook: White Light Laser