Any fabricators using the DcH2000 cobra

[Texasstar]

I also love how he's been doing that for 50 years and when the guy asked about plastics for frame design in the future, he was absolutely open minded to the idea, most engineers I know who aren't even in their 30's are already dead set in the status quo

It takes special people to walk out of the University with an engineering degree and remain humble....my wife is an educator. The education system is dumbed down because intellect is defined by standardized testing. My son Zeke is tactile in his learning and he needs to destroy things to build. Many kids are this way and they fall through the cracks of academentia. Also their gifts and skills are demeaned and rendered not as important as math and science. Fortunately there are educators like Sir Ken Robinson out there who are redefining intellect.

Tony said in the video "the wrong people were making decisions" when it came to production motorcycles and deciding what should be developed. That is why talented people need to be mentoring young kids like The Build Program is doing in Milwaukee so that this level of genius is passed on to another generation. The schools aren't going to do it but online forums like this one are...our local community college turned my son down for an adult ed course on motorcycle building but DTT didn't! Oh and if my wife catches Zeke building a frame in his room we will be in trouble


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[Texasstar]

Skip to four minutes 40 seconds how not to light a cobra torch...http://youtu.be/2l9GgSddJ4Q


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[Texasstar]

he needs a 5 lbs abc fire extinguisher right by the door

like this

http://www.ebay.com/itm/QUALITY-USED-5lb-ABC-FIRE-EXTINGUISHER-CERTIFIED-TO-DATE-W-BRACKET-SIGN-/251401502441?pt=BI_Security_Fire_Protection&hash=item3a88b27ee9

pm me if you want i would be more than happy to Sponsor this for him

we have the last piece of the puzzle! thank you cxman!!!! Today we learn how to light our cobra!

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[cxman]

good stuff mount it up off the floor so it does not get banged around

in this case abc type is the only way to go

if you use a co2 fire extinguisher they have a bad habit of getting discharged as emergency beer cooling devices

 

[Texasstar]

http://youtu.be/2WKw2gYqySY
We love our first torch...Cobra
dhc2000

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[SONICJK]

Is zeke left handed?
I hold my torch in my right hand and use filler with the left (although i guess youre supposed to be able to do both)

That thing is so tiny, its awesome.
I dont know much about OA welding, but it looks like he is just melting filler rod and not the base metal lol

 

[Texasstar]

Is zeke left handed?
I hold my torch in my right hand and use filler with the left (although i guess youre supposed to be able to do both)

That thing is so tiny, its awesome.
I dont know much about OA welding, but it looks like he is just melting filler rod and not the base metal lol

Zeke is left handed but tried both hands... We cut our own filler rod from 3003 .050 and used the 0 tip. It is tiny but the 1.5 tip and 1 tip burned through immediately. We marked the coupons with a sharpie so he could see it disappear when it was preheated. An 1100 3/32 rod would easier but he was able to tack the coupons. I didn't want the rod fully fluxed so he could see how it rolled off and on the video you can see the orange flare when he did dip the rod. He practiced trying to insert the rod in the puddle in the middle of the coupon as the puddle formed. Then we laid a coupon on top of another one and he successfully tacked them. Heating all three correctly is gonna take major skills. The good thing is he spent an hour at it and went inside and watched the videos again and realized he was trailing his torch wrong. He can safely light the torch on his own and dial it in. You can really dial in the cone to control the heat. Mom wants to learn and so does his big brother... It was a good start.


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[rockcitycafe]

that's awesome! did you have to deprive him of electronic devices to achieve this level of concentration???

 

[SONICJK]

Zeke is left handed but tried both hands... We cut our own filler rod from 3003 .050 and used the 0 tip. It is tiny but the 1.5 tip and 1 tip burned through immediately. We marked the coupons with a sharpie so he could see it disappear when it was preheated. An 1100 3/32 rod would easier but he was able to tack the coupons. I didn't want the rod fully fluxed so he could see how it rolled off and on the video you can see the orange flare when he did dip the rod. He practiced trying to insert the rod in the puddle in the middle of the coupon as the puddle formed. Then we laid a coupon on top of another one and he successfully tacked them. Heating all three correctly is gonna take major skills. The good thing is he spent an hour at it and went inside and watched the videos again and realized he was trailing his torch wrong. He can safely light the torch on his own and dial it in. You can really dial in the cone to control the heat. Mom wants to learn and so does his big brother... It was a good start.


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Noice.
That so awesome. At his age I was just learning to mig, and by learning I mean I was throwing sparks and making horrendously ugly "welds" haha.

I look forward to seeing the progress. Keep this thread updated with the progress so we can see him become a pro.

I've never torch welded but I assume its about the same as tig with flame instead of electric heat. If so have him practice running a bead across a piece of 1/4 inch plate until he gets the movements and speed down and then Introduce the filler rod after that, it makes it a lot easier to get the movement and the control of the base metal first and then move on to the filler in my experience.

And PS come spring time we need to go backpacking haha

 

[Texasstar]

Noice.
That so awesome. At his age I was just learning to mig, and by learning I mean I was throwing sparks and making horrendously ugly "welds" haha.

I look forward to seeing the progress. Keep this thread updated with the progress so we can see him become a pro.

I've never torch welded but I assume its about the same as tig with flame instead of electric heat. If so have him practice running a bead across a piece of 1/4 inch plate until he gets the movements and speed down and then Introduce the filler rod after that, it makes it a lot easier to get the movement and the control of the base metal first and then move on to the filler in my experience.

And PS come spring time we need to go backpacking haha

Justin anybody with your patience could easily master it! You woodworking skills are breathtaking... And yes we need to go backpacking.


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[Texasstar]

that's awesome! did you have to deprive him of electronic devices to achieve this level of concentration???

Thanks Sean that will be very encouraging to him coming from you.

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[Texasstar]

Oh. 1 hour work earns you 1 hour of technology time


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[Texasstar]

Is zeke left handed?
I hold my torch in my right hand and use filler with the left (although i guess youre supposed to be able to do both)

That thing is so tiny, its awesome.
I dont know much about OA welding, but it looks like he is just melting filler rod and not the base metal lol

We pretty much made every rookie mistake that we could the first time out. First the strips that I cut were way to wide! We are getting some 3/32 1100 rod to practice with. We read what Richard Finch said to do in Performance Welding and Monster Garage: How to weld damn near anything. He said, "the most common mistake for beginners is trying to melt the rod and drop it in the seam" We also learned we did something intuitive that was right and that is to lay the flame parallel to the work...tbc


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[SONICJK]

Yup. You want to melt the base metal and then dip the rod in periodically to fill any voids or add material when needed.

Grab some tig filler rod, it's surprisingly cheap. I think it's around 10 bucks for a pound of aluminum rod which is a pretty good bit.

 

[cxman]

you may want to ge a chunk of steel plate to weld on

it will help you hold in the heat and not let your preheat fade off so fast the concrete block sucks the heat up and can

blow chunks off when it gets to hot

 

[Texasstar]

Thanks cxman need to get some fire bricks and boy did it burn through when we were over the block!


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[Texasstar]

you may want to ge a chunk of steel plate to weld on

it will help you hold in the heat and not let your preheat fade off so fast the concrete block sucks the heat up and can

blow chunks off when it gets to hot

cxman Richard Finch says to clamp a copper strip to thin guage sheet metal if it blows out. The tinman and cobra weld with a crack below it. Which is easier?


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[Texasstar]

http://youtu.be/pVv8a_FVIOU seems to be one of the more comprehensive oxyacetylene welding videos on YouTube.


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[johnu]

Awesome bit of kit you have there, oxy/acety is a great addtion to the home builders shop. As mentioned earlier it can be used for heating metal to bend it (tube, flat whatever), cutting, and importantly for annealing your ally. I could not do without the o/a in my garage as I don't have a mandrel bender, an ironworker or tig welder. You will get more use out of this than if you had bought a tig welder, don't get me wrong the tig would be great to have and it is easier to weld ally with than o/a.

I've done a lot of bronze welding (brazing) in my time and I can tell you it is a piece of cake compared to welding ally with o/a. Lot of talk about flux on here, if you were doing a lot of bronzing you can get a fluxer which introduces the flux to the flame somehow, I've never used one though. Can you buy those SIF bronze rods here in the states?

Good luck, it's a real sense of achievement when you can run a bead on ally with o/a

 

[Texasstar]

Awesome bit of kit you have there, oxy/acety is a great addtion to the home builders shop. As mentioned earlier it can be used for heating metal to bend it (tube, flat whatever), cutting, and importantly for annealing your ally. I could not do without the o/a in my garage as I don't have a mandrel bender, an ironworker or tig welder. You will get more use out of this than if you had bought a tig welder, don't get me wrong the tig would be great to have and it is easier to weld ally with than o/a.

I've done a lot of bronze welding (brazing) in my time and I can tell you it is a piece of cake compared to welding ally with o/a. Lot of talk about flux on here, if you were doing a lot of bronzing you can get a fluxer which introduces the flux to the flame somehow, I've never used one though. Can you buy those SIF bronze rods here in the states?

Good luck, it's a real sense of achievement when you can run a bead on ally with o/a

thanks Johnu we are pulling out the cobra to make a gift for my sister's bday and see how it cuts stainless...


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