Instructional video tutorial. Simple glass blowing technique of closing the end of borosilicate glass tubing and thickening the glass before blowing a nice spherical enlarged bubble.
Used in this clip is 6mm x 1mm Borosilicate Pyrex Tubing worked on a low cost high velocity torch head attached to a TradeFlame Map Replacement disposable gas bottle available from most hardware or industrial supply outlet.
Post time: May-12-2017