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Search: Posts Made By: rcktscientist
Forum: Tips, Techniques, and Questions 2022-03-31, 3:02pm
Replies: 5
Views: 491
Posted By rcktscientist
Is the bead slipping? If so, do some research on...

Is the bead slipping? If so, do some research on your bead release.

I've had luck with roughing up my mandrel with steel wool, double-dip the mandrel slowly (no twisting and slower dips generally...
Forum: Torch Questions 2022-03-30, 8:57am
Replies: 7
Views: 496
Posted By rcktscientist
In that case, you may want to buy a hand...

In that case, you may want to buy a hand torch/bunsen combo. Sealing tubing to tubing will be easiest with a hand torch and the bunsen will extend your working time. A National 3B-B torch with a few...
Forum: Torch Questions 2022-03-28, 9:06am
Replies: 7
Views: 496
Posted By rcktscientist
I dig your enthusiasm. I'm the same way. For...

I dig your enthusiasm. I'm the same way.

For boro, you need propane and oxy, no hot head or plumbers torch will work.
Your $1k budget will be challenging to meet since minimum prices for a torch...
Forum: Torch Questions 2022-03-23, 2:55pm
Replies: 3
Views: 277
Posted By rcktscientist
In the same boat. On a Bobcat right now but ready...

In the same boat. On a Bobcat right now but ready to upgrade.
It was 2 choice pairs for me:
LOWER COST - Phantom vs. Sidewinder w/scroll base vs. Red Rocket (previously all around $1200, Phantom...
Forum: Torch Questions 2022-03-23, 12:18pm
Replies: 3
Views: 277
Posted By rcktscientist
The general consensus is that the GTT centerfire...

The general consensus is that the GTT centerfire (Lynx) is superior to the Alpha (Champion non-sharp) but the Champion Sharp Flame addresses that to some degree so would be a better choice the the...
Forum: Tips, Techniques, and Questions 2022-03-21, 8:06am
Replies: 8
Views: 835
Posted By rcktscientist
An important point that many people forget about...

An important point that many people forget about is that annealing temperatures/schedules generally refer to glass that is cooled on all sides. So, a closed, hollow form or an object sitting on the...
Forum: Tips, Techniques, and Questions 2022-03-08, 5:28pm
Replies: 7
Views: 797
Posted By rcktscientist
There are epoxies that work with glass. You could...

There are epoxies that work with glass. You could always make some soft parts and some boro parts and then 'combine' the different glasses by adhering them to each other after cool down. Not quite...
Forum: Torch Questions 2022-01-26, 11:04am
Replies: 3
Views: 376
Posted By rcktscientist
A Minor will do well at 10-15psi Oxygen. Try...

A Minor will do well at 10-15psi Oxygen. Try turning it up a bit.
Also, your flame should be around 12-15 inches long and about 1/2 in diameter at full settings. That's how most of the Minors I have...
Forum: Tips, Techniques, and Questions 2022-01-18, 11:54am
Replies: 22
Views: 1,526
Posted By rcktscientist
Like Bea said, clip-ons are a good alternative if...

Like Bea said, clip-ons are a good alternative if you want to use readers or progressives. I bought the Phillips BoroTruview 3.0 clip/flip and they work well for light fuming and light color work. My...
Forum: Tips, Techniques, and Questions 2022-01-17, 8:12am
Replies: 22
Views: 1,526
Posted By rcktscientist
Awesome!!! =D>

Awesome!!!
=D>
Forum: Tips, Techniques, and Questions 2022-01-12, 1:26pm
Replies: 4
Views: 760
Posted By rcktscientist
Anytime. Please let me know how you like the...

Anytime. Please let me know how you like the oxycon when you get it. I've thought of purchasing the same one through them and would like a review.

Happy melting!!!
Forum: Tips, Techniques, and Questions 2022-01-11, 8:32am
Replies: 4
Views: 760
Posted By rcktscientist
That GTT chart info for the Scorpion is with a...

That GTT chart info for the Scorpion is with a Bobcat (or possibly Cricket) centerfire. If you will be upgrading to the Scorpion/Lynx model (highly suggested) it would need more like 13.5lpm at...
Forum: Tips, Techniques, and Questions 2022-01-05, 1:02pm
Replies: 13
Views: 1,064
Posted By rcktscientist
A little more on regulators... Yes, regulators...

A little more on regulators...
Yes, regulators with elastomeric material for the diaphragm can degrade due to propane depending on which elastomer is used. I know Victor makes stainless steel...
Forum: Tips, Techniques, and Questions 2022-01-05, 10:51am
Replies: 13
Views: 1,064
Posted By rcktscientist
The flashback debate for surface mix torches is...

The flashback debate for surface mix torches is alive and well if you want to look into it.

For me, I only use a flashback on the propane side of my auxiliary line for my PRE-MIX hand torch. I...
Forum: Tips, Techniques, and Questions 2021-12-23, 8:26am
Replies: 22
Views: 1,526
Posted By rcktscientist
8PSI means you have about 50% of what that torch...

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...
Forum: Tips, Techniques, and Questions 2021-12-20, 1:13pm
Replies: 22
Views: 1,526
Posted By rcktscientist
Most people agree that 10lpm at standard oxycon...

Most people agree that 10lpm at standard oxycon pressures is not enough for a Lynx. That torch can handle 10lpm at 15PSI and most oxycons make around 5PSI. So, you may be operating around 33% of that...
Forum: Boro Room 2021-12-16, 8:46am
Replies: 11
Views: 7,774
Posted By rcktscientist
I think a safe bet is a rate that is slow enough...

I think a safe bet is a rate that is slow enough for the slow ramps which would be good for the fast ramps too. Did a quick check of the Dunham info and found some good data for you: (glass type and...
Forum: Boro Room 2021-12-15, 8:17am
Replies: 11
Views: 7,774
Posted By rcktscientist
The warm up cycle should be the exact reverse of...

The warm up cycle should be the exact reverse of your annealing cycle.
So, fast ramp up to around 950, maybe 920 to be safe (950 is strain point of boro)
Then, slow ramp up to 1050 (through the...
Forum: Torch Questions 2021-12-07, 4:30pm
Replies: 11
Views: 1,558
Posted By rcktscientist
LAST UPDATE (probably) - Torch is running...

LAST UPDATE (probably) -
Torch is running great.
I found an air pressure snubber that removes the pulsing of the nebulizer so no more pulsing flame when using air.
Also, I purchased a cheap...
Forum: Tips, Techniques, and Questions 2021-12-06, 8:44am
Replies: 7
Views: 1,148
Posted By rcktscientist
A couple of questions for you to help us...

A couple of questions for you to help us understand:
1. When you say 'work far out in the flame', do you mean at the very tip of the outside cone or further?
2. Is this the first time the hot...
Forum: Tips, Techniques, and Questions 2021-12-03, 10:02am
Replies: 4
Views: 1,012
Posted By rcktscientist
First - use a good marble mold, makes life so...

First - use a good marble mold, makes life so much easier

Second - Cold/hot seals are actually a range but basically the colder the punty is, the lighter the bond. I usually warm my marble and get...
Forum: Torch Questions 2021-11-29, 4:29pm
Replies: 8
Views: 1,178
Posted By rcktscientist
FYI That's an 8.5 psi outlet pressure oxycon...

FYI

That's an 8.5 psi outlet pressure oxycon model. Not much higher than 5 but every bit helps.
Forum: Torch Questions 2021-11-29, 4:27pm
Replies: 8
Views: 1,178
Posted By rcktscientist
You are smelling Nitrogen Dioxide. It is building...

You are smelling Nitrogen Dioxide. It is building up in your workspace and can be dangerous. It has the characteristic bleach smell.

You need to improve your ventilation soon!
Forum: Boro Room 2021-11-29, 9:49am
Replies: 5
Views: 1,578
Posted By rcktscientist
Can you tell if it is devitrification? I was...

Can you tell if it is devitrification? I was having trouble working china black due to devit. I ended up working the glass hotter and for a shorter time and that improved things considerably. Haze...
Forum: Tips, Techniques, and Questions 2021-11-24, 1:43pm
Replies: 15
Views: 1,761
Posted By rcktscientist
I know Devardi makes some but I've heard all...

I know Devardi makes some but I've heard all their glass is sub-par quality and can be very shocky in the flame.

You can also search for "flint glass tubing" which is soda lime. Those will...
Showing results 1 to 25 of 50

 
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