New burner design - prototype testers wanted

The box had arrived Saturday. Inside was a nice stainless steel Atlas mini and all the necessary parts. It is truly a plug and play package. The packing was also excellent, with everything placed so it won't rattle or break the flat rate box apart. There was even a bar of steel and a price sheet from Admiral steel. I took a good look at Charles design, and was impressed. The layout and burner placement was far superior to any 2BF I have ever seen. This isn't a cheaply made DYI forge, but a true small bladesmith forge. I look forward to firing it up soon and testing it out.

One again, I would like to thank Charles for his generosity and sharing.
 
Just received the burner, regulator, and pressure gauge. This is a very professional and well put together piece. Everything thread together very smoothly. I'll post post and test it out in the coming days. Thank you Charles
 
Thanks for the shipping feedback, Stacy. I've tried and gotten little feedback. The transition from flexible padding to styrofoam is something I considered for a long time. I still need to make a couple design tweaks to the foam, but I think it helps considerably. It's actually cheaper to use the styrofoam and LFR boxes than it use to double walled boxes and bubble wrap. As for the sample, I spent 2 years trying to get Aldo to do that, but never happened. I talked to Terry at Admiral and he jumped on it. Since then, I've put a sample from Admiral and a price list in about 700 new forge owners hands. I thought it was a perfect match, it costs me nothing, and the customer gets a free sample of something they will need.
 
I got the burner on Tuesday. It's all put together and ready to go, and I've got my new two brick travel forge about 90% done. I'm hoping to give and it the burner a workout this weekend. I'll be sure to post results.
 
Here’s a couple of videos and pics from forging this weekend.
I found 14-16 psi to be the sweet spot for me to be able to forge without taking too long for the steel to heat up.
I’m new to forging so if you see something that looks off, let me know.



I had a little backflow problem and had to change the depth of the burner a little bit.

For normalizing the steel I'd crank it up to around 16 psi, then as I thermal cycled I would drop it down in psi each time with 5 psi being a good pressure for me to do a sub critical heat.

I have not tried forge welding yet. Not sure that I will anytime soon. I have a few more videos of the thermal cycling and recalescence, but I'm sure you've all seen those videos before.

Thanks again for the burner Charles.
If there's anything else you need, let me know.

CE282C06-20C5-4E70-9F91-013010B98263.jpeg
 
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Josh Rider said:
Here’s a couple of videos and pics from forging this weekend.
I found 14-16 psi to be the sweet spot for me to be able to forge without taking too long for the steel to heat up.
I’m new to forging so if you see something that looks off, let me know.



I had a little backflow problem and had to change the depth of the burner a little bit.

For normalizing the steel I'd crank it up to around 16 psi, then as I thermal cycled I would drop it down in psi each time with 5 psi being a good pressure for me to do a sub critical heat.

I have not tried forge welding yet. Not sure that I will anytime soon. I have a few more videos of the thermal cycling and recalescence, but I'm sure you've all seen those videos before.

Thanks again for the burner Charles.
If there's anything else you need, let me know.

View attachment 833582
Click to expand...
Josh,

Is that the bigger burner?
 
I got the 30k burner and just using a 2 brick forge o only bring it up to 5 psi and can forge just fine. Migjt jave to crank it up a bit lol
 
Wow, that's ugly! It just isn't getting nearly enough air and producing a huge dragon's breath. It's serviceable, but not what I was hoping for with that design. I'll have to spend more time thinking on that and let you know. Can I safely assume the old burner works the same?
 
Yes, old burner works the same. So it’s not supposed to look like this? Is that too much psi for forging?
 
Not necessarily too much psi, but too much flow for the amount of air coming in. I think flaring the air intake or increasing the size of your burner portal so air could be drawn in around the burner would help you get higher heat at lower pressure with less dragons breath.
 
Stacy sent me a 30k one to test. I'm building a proper forge, but just had to do a quick run in my old coffee can forge. I had already burned out the refractory opposite the burner port prior. When the video starts, I had just lit it and it was only at 5 psi. I will have more adjustability for airflow on the new one. What would be a good chamber size for this type of burner? I am planning on using a 5 LB propane bottle to make a nice portable unit. It will be nice to be able to transport for demos at scout events. Thanks.

 
Kevin McGovern said:
Stacy sent me a 30k one to test. I'm building a proper forge, but just had to do a quick run in my old coffee can forge. I had already burned out the refractory opposite the burner port prior. When the video starts, I had just lit it and it was only at 5 psi. I will have more adjustability for airflow on the new one. What would be a good chamber size for this type of burner? I am planning on using a 5 LB propane bottle to make a nice portable unit. It will be nice to be able to transport for demos at scout events. Thanks.

Click to expand...

Pull the burner back a bit. You just want the tip barely in.
 
Josh Rider said:
Here’s a couple of videos and pics from forging this weekend.
I found 14-16 psi to be the sweet spot for me to be able to forge without taking too long for the steel to heat up.
I’m new to forging so if you see something that looks off, let me know.



I had a little backflow problem and had to change the depth of the burner a little bit.

For normalizing the steel I'd crank it up to around 16 psi, then as I thermal cycled I would drop it down in psi each time with 5 psi being a good pressure for me to do a sub critical heat.

I have not tried forge welding yet. Not sure that I will anytime soon. I have a few more videos of the thermal cycling and recalescence, but I'm sure you've all seen those videos before.

Thanks again for the burner Charles.
If there's anything else you need, let me know.

View attachment 833582
Click to expand...

How much gap do you have around the burner and support tube. I find this gap can help draw more air in and help complete the burn which requires less propane. Also how far is the burner stuffed in the forge?
 
JTknives said:
How much gap do you have around the burner and support tube. I find this gap can help draw more air in and help complete the burn which requires less propane. Also how far is the burner stuffed in the forge?
Click to expand...

ID of oriface is 1 7/16”
OD of burner is 1”
The burner sits just inside the forge.
It’s probably somewhat closed up around the pipe inside the forge so I don’t think air could come in that way.

547A424C-4944-4C68-BFBD-28A4B336A395.jpeg AAB8B4ED-8A1C-46A2-875D-4A283B24CEC8.jpeg
 
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