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Search: Posts Made By: rcktscientist
Forum: Tips, Techniques, and Questions 2022-01-17, 8:12am
Replies: 19
Views: 530
Posted By rcktscientist
Awesome!!! =D>

Awesome!!!
=D>
Forum: Tips, Techniques, and Questions 2022-01-12, 1:26pm
Replies: 4
Views: 201
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: 201
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: 337
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: 337
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: 19
Views: 530
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: 19
Views: 530
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: 10
Views: 6,277
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: 10
Views: 6,277
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: 1,064
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: 579
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: 563
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: 689
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: 689
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: 962
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: 13
Views: 1,054
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...
Forum: Torch Questions 2021-11-24, 8:58am
Replies: 8
Views: 689
Posted By rcktscientist
Sounds like your flame chemistry is reducing the...

Sounds like your flame chemistry is reducing the glass.

Oxygen concentrators run at lower psi than regulated tanks. Most tanks run 15psi O2 but an oxycon will usually put out around 5psi. Some...
Forum: Tips, Techniques, and Questions 2021-11-17, 8:32am
Replies: 9
Views: 594
Posted By rcktscientist
You can also make a short 'adapter' hose with...

You can also make a short 'adapter' hose with B-fittings on one end and cut hose on the other. Then you can run regular B-fitting (both ends) hoses from adapter to torch. Any short length of hose...
Forum: Torch Questions 2021-11-09, 2:57pm
Replies: 11
Views: 1,064
Posted By rcktscientist
They don't make them for any standard torch or...

They don't make them for any standard torch or lower-end triple-mixes. Only Phantoms and up.
Forum: Torch Questions 2021-11-09, 1:55pm
Replies: 11
Views: 1,064
Posted By rcktscientist
ANOTHER UPDATE - I installed a compressed air...

ANOTHER UPDATE -
I installed a compressed air system on my torch.
I used a medical nebulizer (makes about 9lpm at 30psi, way overkill so I used a relief valve), a needle valve, a check valve, a...
Forum: Boro Room 2021-10-27, 12:01pm
Replies: 10
Views: 1,337
Posted By rcktscientist
I use the same flame for both. Small neutral...

I use the same flame for both. Small neutral flame, about 6 inches long but fairly sharp. Warm tube with bushy flame then turn down to fume while tube is still hot. Silver gets fumed from a point...
Forum: Boro Room 2021-10-27, 8:09am
Replies: 10
Views: 1,337
Posted By rcktscientist
Just a guess, but sounds like you're fuming the...

Just a guess, but sounds like you're fuming the silver too heavy. Try for a light "piss yellow' silver fume and then bake it into the glass using a reducing flame before working. Then back worked...
Forum: Boro Room 2021-10-25, 7:41am
Replies: 52
Views: 17,681
Posted By rcktscientist
Not sure if it has been mentioned but Ron Bearer...

Not sure if it has been mentioned but Ron Bearer has some great pdfs available that cover this. I think he offers 5 different pdfs with a kinds of great info for $20. Very good investment.
...
Forum: Tips, Techniques, and Questions 2021-10-20, 9:51am
Replies: 14
Views: 529
Posted By rcktscientist
Sounds like mixed COEs. Seems more likely to...

Sounds like mixed COEs.
Seems more likely to happen with soft glass rods vs boro.

If not that, maybe poor quality glass like Devardi or similar. I've heard they can be a nightmare to work with.
...
Forum: Studio 2021-10-19, 8:29am
Replies: 6
Views: 980
Posted By rcktscientist
Electricians often use an 80% limit rule of...

Electricians often use an 80% limit rule of thumb.
A 20A circuit operating at 80% would provide 16A safely.
Using your 14A kiln, that would give you a nice little 2A margin, which at 120V is about...
Showing results 1 to 25 of 41

 
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