More free plans: 40 pound Chinese
Moderator: Mike Everman
Re: More free plans: 40 pound Thermojet
Nice, I'm following this thread and looking forward you finish this thing successfully.
Everman, give us forum avatars!
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Re: More free plans: 40 pound Thermojet
okmetiz wrote:nopoech prut wrote:
Are you planning to put an augmentor on it?
...It's better to generate heat efficiently, than recover it efficiently...
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Re: More free plans: 40 pound Thermojet
huh?poech prut wrote:okmetiz wrote: no
Your scepticism is fuel for my brain.
Re: More free plans: 40 pound Thermojet
yikesace_fedde wrote:huh?poech prut wrote:okmetiz wrote: no
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Re: More free plans: 40 pound Thermojet
Finished.
Hopefully I can test this today...
Hopefully I can test this today...
Quantify the world.
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Re: More free plans: 40 pound Thermojet
Good luck!
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Re: More free plans: 40 pound Thermojet
Hi Metizmetiz wrote:Today's a bust. maybe tomorrow
On another topic your weld beads look much improved good work
Viv
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Monsieur le commentaire
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Monsieur le commentaire
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Re: More free plans: 40 pound Thermojet
Just curious, what kind of welder do you use? From the pics it doesen´t look like a mag-weld or a tig-weld, perhaps stick welding?
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Re: More free plans: 40 pound Thermojet
Not totally sure I agree here. I'm not trying to stir up trouble--but it looks as though your welds are not penetrating the base metal by very much. For max strength they SHOULD.Viv wrote:
Hi Metiz
On another topic your weld beads look much improved good work
Viv
Have you tried making a weld sample and then cutting through it to try and judge the extent of the weld penetration? This is the only realistic way to determine your results.
OTOH the consistent bead quality indicates your increasing skill and experience. Keep it up!!
Bill
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Re: More free plans: 40 pound Thermojet
Hi Billhinote wrote:Not totally sure I agree here. I'm not trying to stir up trouble--but it looks as though your welds are not penetrating the base metal by very much. For max strength they SHOULD.Viv wrote:
Hi Metiz
On another topic your weld beads look much improved good work
Viv
Have you tried making a weld sample and then cutting through it to try and judge the extent of the weld penetration? This is the only realistic way to determine your results.
OTOH the consistent bead quality indicates your increasing skill and experience. Keep it up!!
Bill
I should say in his defense that he was having terrible trouble with a gas regulator and some other problems with his MIG, that said he is a long way from were he was only a few weeks ago
Viv
"Sometimes the lies you tell are less frightening than the loneliness you might feel if you stopped telling them" Brock Clarke
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Monsieur le commentaire
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Re: More free plans: 40 pound Thermojet
Hey Hinote,
The penetration that I get with my mig weld is good enough. this is the lowest setting. any higher and I would blast through the steel or leave weld beads on the inside - not good. If I look on the inside of the weld seem, I can just about see tiny lumps forming here and there so if the steel is 1mm thick then my penetration is about .8/ .9mm wich is more then good enough. It's not like there are massive pressures to be contained in a pulse-jet.
The penetration that I get with my mig weld is good enough. this is the lowest setting. any higher and I would blast through the steel or leave weld beads on the inside - not good. If I look on the inside of the weld seem, I can just about see tiny lumps forming here and there so if the steel is 1mm thick then my penetration is about .8/ .9mm wich is more then good enough. It's not like there are massive pressures to be contained in a pulse-jet.
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Re: More free plans: 40 pound Thermojet
Try using a higher amp setting/low thread feed and weld the seams in small sections, I made the experimental insertion pipe for my T2 from 1mm sheet and welded it with a 160A ESAB mag-welder that way without problems.
If you weld for one second, rest for two and then weld one again (and so on...) the metal won´t heat up enough to melt and you will get a nice seam without the look of bird spillings to it.
If you weld for one second, rest for two and then weld one again (and so on...) the metal won´t heat up enough to melt and you will get a nice seam without the look of bird spillings to it.