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Bench rollers and Mini torch stand

I designed bench rollers and a mini torch/jeweler's torch stand for glassblowing. I printed mine with ASA and added a galvanized sheet steel heat shield. The rollers function as intended, but Ive yet to put them through intense bench testing with hot glass and torch flame, that is happening today. I may double up the heat shield and add insulation between the metal to help further isolate the plastic from any directional bench heat.