Ok. Just piquing interest. What's this (I know but do you)?(https://uploads.tapatalk-cdn.com/20170604/7820979acfba3c36381764f3ebd54b17.jpg)
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Somebody practicing welding for the first time? :D
Quote from: Gary Hatt - Publisher BCM on June 04, 2017, 05:28:14 PM
Somebody practicing welding for the first time? :D
With flux core wire ;D
It's a work of art! A masterpiece!
Actually, whatever it is, it's built to purpose and will probably do the job quite nicely, all jesting on this board aside.
Isn't that part of your ventilation system using muffin fans?
--Geoff
Geoff scores. It's part of my ventilation system using a CPU fan. Before I install this, I'll test it first. I might have to upgrade to a bilge vent fan. To be honest though, I see little to be gained from short powerful bursts of air over gentle continual ventilation.
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Edited because I was cranky. :-/
FYI, I used to build computers in cases for a living and I can tell you that muffin fans aren't your best bet for ventilation in terms of CFM. Fantastic ceiling vent fans move a ton of air and are already 14"x14" and don't need a special welded heavy metal chute to install. I have bus friends that hardly even have to use their A/C because these fans move so much air.
No offence but hope you can grind better than weld. ;D
Just kidding. As long as it works.
I made a heat exchanger for my hydronic heating system to put in my plumbing bay out of a large muffin fan and the heater core from a Ranger pu. I built the enclosure out of plywood. it works quite well to keep the bay warm when needed.
Quote from: gumpy on June 05, 2017, 05:27:39 PM
I made a heat exchanger for my hydronic heating system to put in my plumbing bay out of a large muffin fan and the heater core from a Ranger pu. I built the enclosure out of plywood. it works quite well to keep the bay warm when needed.
I've never quite understood heat exchangers. They're probably like Schlieren photography - hard to describe and master but ultimately very simple.
I'd love to see photos.
Quote from: muldoonman on June 05, 2017, 04:19:07 PM
No offence but hope you can grind better than weld. ;D
Just kidding. As long as it works.
My welding IS getting better. I'm finding the 6011 rods don't flow as well as I'd imagined. When I grind my welds, I do find slag enclosures but the welds seem pretty strong. The more I weld, the more I feel I should have gone for gas rather than arc.
Quote from: Scott & Heather on June 05, 2017, 03:22:57 PM
Edited because I was cranky. :-/
FYI, I used to build computers in cases for a living and I can tell you that muffin fans aren't your best bet for ventilation in terms of CFM. Fantastic ceiling vent fans move a ton of air and are already 14"x14" and don't need a special welded heavy metal chute to install. I have bus friends that hardly even have to use their A/C because these fans move so much air.
I don't know. It brought up heat exchangers which is worth talking about.
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Quote from: Zephod on June 05, 2017, 05:49:06 PM
I've never quite understood heat exchangers. They're probably like Schlieren photography - hard to describe and master but ultimately very simple.
I'd love to see photos.
My welding IS getting better. I'm finding the 6011 rods don't flow as well as I'd imagined. When I grind my welds, I do find slag enclosures but the welds seem pretty strong. The more I weld, the more I feel I should have gone for gas rather than arc.
I don't know. It brought up heat exchangers which is worth talking about.
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You should have brought the flux core wire welder for the same price as the stick welder. A 6011 rod is for penetration welds with little flux. A 6011 is for thicker metal than you are working with. You would have better welds with a 7014 stick.
--Geoff
if you can flat pass everything...7024 makes pretty passes...easy peasy. can't flip over/around a battle ship :)
i used to break in first timers with it and then have them move on from there...
(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fwww.littlemetalshop.com%2Ftrailblazer%2F2-4-backing-plate%2FRS_P1010205.JPG&hash=8265055f57f2d6022df962bd78af9c3e749b749d)
The rods I can get easily are 6011, 6013, 7014, 7018. I've got some 312 for welding stainless to mild steel. I can use 1/16, 3/32 but 1/8 is a challenge for my welder.
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all my kozy heat exchanger have 1 or 2 muffin fans and work really good . yes they do not move lots of air but they use very little power and are quiet . nice slow movement of warm air and they take up very little room . it is better to pull the air then push it with this type of fan
are these kozy heat exchanger's still available for sale ??? I need 2
dave
Quote from: sledhead on June 06, 2017, 05:11:59 AM
all my kozy heat exchanger have 1 or 2 muffin fans and work really good . yes they do not move lots of air but they use very little power and are quiet . nice slow movement of warm air and they take up very little room . it is better to pull the air then push it with this type of fan
are these kozy heat exchanger's still available for sale ??? I need 2
dave
You can find them at hydronicheaterrepair.com also check out suremarineservice.com I buy all my parts from them.
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Quote from: Zephod on June 06, 2017, 02:03:16 AM
The rods I can get easily are 6011, 6013, 7014, 7018. I've got some 312 for welding stainless to mild steel. I can use 1/16, 3/32 but 1/8 is a challenge for my welder.
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8018 works well on stainless..iirc.
Hello. Keep working on you skills with the stick.. takes practice , practice, practice. You can find guidance on youtube about the right combination of rod and materials to help.. lots of info out there.... i started welding with a lincoln buzzbox 55 years ago.... still the best way to go but a good DC welder helps...
Do mind the fumes ::: take precautions....eyes and lungs are priceless and you only have two each.....
Regards and happy welding
Mike
I bought a cheapy wire feed welder that uses flux core wire (165amp). Easy to weld with up to 1/4". Good Luck, TomC
Quote from: TomC on June 06, 2017, 09:15:28 AMI bought a cheapy wire feed welder that uses flux core wire (165amp). Easy to weld with up to 1/4". Good Luck, TomC
240V, Tom?
thanks for the link's on the heat exchanger's Derrick
dave
With your list of rods, you wont go back after using 7018 in 3/32 in my opinion. That 6011 is a brute in dirty metal and gettin in deep but/and it splatters the crap away. So in that arena less
amps / heat and it can help ya in the muck.
I stuck a few rods with a miller welder on my service truck, i had the options for AC but never unpluged from DC. Good luck and try 85 amps if runnin dc.
That 6011 will make ya dance and wish you had non melting clothes on. Cotton is king
Good day there
Floyd
MIG welding is like hot glue, only lots hotter.
Stick is more versatile, but MIG is so easy once you learn the setup. I never did get the hang of stick welding . . .
My first few projects used more grinding discs than should have . . . .
I think we have seen two very valuable welding training aids: a fantastic example of bubble-gum welds that might not survive a good blow with a sledge hammer, and a stellar example of a beautiful weld that will take any blow.
Quote from: brmax on June 06, 2017, 07:07:48 PM
With your list of rods, you wont go back after using 7018 in 3/32 in my opinion. That 6011 is a brute in dirty metal and gettin in deep but/and it splatters the crap away. So in that arena less
amps / heat and it can help ya in the muck.
I stuck a few rods with a miller welder on my service truck, i had the options for AC but never unpluged from DC. Good luck and try 85 amps if runnin dc.
That 6011 will make ya dance and wish you had non melting clothes on. Cotton is king
Good day there
Floyd
3/32 can be challenging for my 90A welder.
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Quote from: Zephod on June 07, 2017, 05:13:46 PM
3/32 can be challenging for my 90A welder.
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back in the day...worked on harbor dredges.
we had barges that were sinking when it rained..
there were many feet of cracks..old old rusty barges..
my point.
Your job was to weld and weld and weld some more...
We had an old one handed hook hand welder.
he could stick 3-5 6011 rods end to end.
stand up hood off, stinger balanced on his boot... and could run all five rods sight unseen by the sound in a straight pass, smoke a cig and finish a coffee... just like a wire feed.
6011 is not just splatter rod.
(https://uploads.tapatalk-cdn.com/20170611/27d39fc0cf99e5fad4e1e0ddf3df3c8f.jpg)
I went in a slightly different direction. I welded the top onto the main unit. Just one screwup... I put the tube coming out the wrong side. Oh well... I'll work around that. 7014 rods, steady movement and thin steel seem to work well.
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