Thread: Hot & Shiny WIP

Looks really good! You have a number of cool features that I will incorporate into my next build. Thanks for sharing.

BTW, I wonder where you got the idea for the anvil ?

I notice the nozzle on your burner glowing. The nozzle on mine never gets that hot. Not saying it's wrong, just that it seems to run very different to mine. On mine, I get the impression that all of the fire starts at the lip of the nozzle.

Yesterday, while heat treating, once the forge was up to temperature, I could not run the burner as low as I wanted. It did not cause a lot of problem as the forge was hot enough that I could use it intermittently and maintain an even temp. I may try an .023 mig tip in place of the .030 that I'm using.

Originally Posted by randydance062449

Looks really good! You have a number of cool features that I will incorporate into my next build. Thanks for sharing.

BTW, I wonder where you got the idea for the anvil ?

100% of the credit for that goes to Charlie Lewis but since making it I have also seen similar on several blade forums

Originally Posted by bluesman7

I notice the nozzle on your burner glowing. The nozzle on mine never gets that hot. Not saying it's wrong, just that it seems to run very different to mine. On mine, I get the impression that all of the fire starts at the lip of the nozzle.

Yesterday, while heat treating, once the forge was up to temperature, I could not run the burner as low as I wanted. It did not cause a lot of problem as the forge was hot enough that I could use it intermittently and maintain an even temp. I may try an .023 mig tip in place of the .030 that I'm using.

Not sure on that myself but in the photo I was at about 10psi then 20psi
I am running a #35 (0.6mm) tweeko tip at the moment but even at about 3-5psi it gets hot still, I have also changed my tip back to the one that is flared but not ground and made the mounting pipe in the forge bigger for more room to allow for it
Some of the blade forums mention that when in the forge with the extra length from the insulation should stop this as the burning point is away from the tip more

Originally Posted by Substance

Not sure on that myself but in the photo I was at about 10psi then 20psi
I am running a #35 (0.6mm) tweeko tip at the moment but even at about 3-5psi it gets hot still, I have also changed my tip back to the one that is flared but not ground and made the mounting pipe in the forge bigger for more room to allow for it
Some of the blade forums mention that when in the forge with the extra length from the insulation should stop this as the burning point is away from the tip more

I find a .030 tip to be more than adequate. The smaller orifice will allow you to run higher pressure and give you a higher velocity, maybe keeping the flame farther out of the nozzle.

WOW!!!! I forge weld at 4-5 psi with a venturi forge!!! for forging I can back it down to like 3-3.5.

Originally Posted by Substance

Not sure on that myself but in the photo I was at about 10psi then 20psi
I am running a #35 (0.6mm) tweeko tip at the moment but even at about 3-5psi it gets hot still, I have also changed my tip back to the one that is flared but not ground and made the mounting pipe in the forge bigger for more room to allow for it
Some of the blade forums mention that when in the forge with the extra length from the insulation should stop this as the burning point is away from the tip more

Yeh the initial test was just to push it a bit
My son in law is a gas fitter and said we can weld a tip and jet to any size as he has the gear to do it,
So might make smaller tip and try it yet once everything is finish is when the real testing starts

Originally Posted by Substance

100% of the credit for that goes to Charlie Lewis but since making it I have also seen similar on several blade forums

My "original" design is a poor copy Mike Blue's forge.

It has turned out to be a popular design, 3 of my friends form Shreveport and East Texas measured my forge at the hammer-in the time before last. When I went out there last time they had made 3 more copies.

They have improved the design. Dan Graves,(smart talented knife maker) forge runs hot enough to make damascus, he made some ball bearing damascus when I was there using the little forge.

There are no new ideas

That is a beautiful forge you are making I admire it.

Charlie

Nice little piece of gear!! There was and perhaps still is a bit of a misconception that you have to have a blower in order to get hot enough to forge weld. Some very clever and talented folks have come up with very efficient burner and forge designs without using forced air. I have done all of my forge welding in my original style Chile Forge Habanero model and I am told that the newer models with the modified T-Rex style burners are even better. I typically work with stacks that start off at 3 inches tall, by 1.5 wide by 6 long and have no problems.

Originally Posted by spazola

My "original" design is a poor copy Mike Blue's forge.

It has turned out to be a popular design, 3 of my friends form Shreveport and East Texas measured my forge at the hammer-in the time before last. When I went out there last time they had made 3 more copies.

They have improved the design. Dan Graves,(smart talented knife maker) forge runs hot enough to make damascus, he made some ball bearing damascus when I was there using the little forge.

There are no new ideas

That is a beautiful forge you are making I admire it.

Charlie

Originally Posted by spazola

My "original" design is a poor copy Mike Blue's forge.

It has turned out to be a popular design, 3 of my friends form Shreveport and East Texas measured my forge at the hammer-in the time before last. When I went out there last time they had made 3 more copies.

They have improved the design. Dan Graves,(smart talented knife maker) forge runs hot enough to make damascus, he made some ball bearing damascus when I was there using the little forge.

There are no new ideas

That is a beautiful forge you are making I admire it.

Charlie

Thanks Charlie there is one question if you don't mind though, and that is I see that yours and the couple of others all have a fully welded in burner,
Does it have a nozzle tip also or another arrangement as mine blows out with no nozzle at 10psi and the tip is glowing after only a few minutes.
This might change when fully insulated and installed but I does have me concerned.
Regards Dion