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Old 2021-12-23, 8:26am
rcktscientist rcktscientist is offline
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Join Date: Jun 19, 2021
Location: los angeles
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8PSI means you have about 50% of what that torch can do. Still plenty for soft glass and boro.
I use a Bobcat on 10lpm at 6PSI and I have made a couple of 2" boro marbles.
Keep your propane around 4-5. Too low and the regulators don't like it, they'll oscillate.
Keep your oxycon at 8lpm(yes, they always work at the set PSI which is usually max). That keeps your O2 purity up. Oxycons run purest at 20-80% capacity.
That combo should be quite effective and not reduce colors assuming you use enough blue knob with green knob.
Good luck!

Last edited by rcktscientist; 2021-12-23 at 8:36am.
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