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Discussion in 'Work Safe' started by meanstreak, May 10, 2017.

  1. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    @Bobster It got hot because I Was trying to shoot 100 Amps into that.
    I just about melted the whole thing on the floor.

    That “one amp per thousandth” rule is OK if you have a large part, but if you have a small part you might only need half of that. I think I ended up finishing that at 55 Amps.

    And I had problems because of the geometry. I needed to use more stick out on the tungsten and turn the gas up because I was trying to sort of weld down in a crotch.


    This is the first weldd I did with the new auto darkening welding helmet, and it really works well.

    The only problem I have is that I’m not used to it and I keep trying to lift it and drop it manually. I haven’t done that much electric welding, And I have done almost 0 electric Welding in 45 years, but still the force of habit is a strong thing.
    Rodburner likes this.
  2. fellmann

    fellmann Esoteric Supporter Premier Member

    Messages:
    1,152
    CaddmannQ and Rodburner like this.
  3. Rodburner

    Rodburner .270 WIN

    Messages:
    431
    Bobster, CaddmannQ and fellmann like this.
  4. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    Good morning Mossberg Owners.

    I started out in the wood framing business as an assistant engineer. I never drew anything over three stories, made of wood.

    The tallest wooden building I’ve ever been is 10 stories. And I was on the eighth floor of that, in a hotel room. But because of the fire codes it had to have concrete elevator towers and concrete stair towers for egress.

    I spent a lot of time working on the car yesterday, and the brake system is working solidly.

    I got the firewall installed and aligned and bolted in place with one bolt & a rope. After a little more alignment and some temporary bracing and another bolt, I will be able to glue it inside the fiberglass body permanently which is what this car always needed desperately.

    Because there are gaps to fill, I will need some epoxy filler, And then I will go over that with layers of fiberglass cloth to create the final connection. I will use the filler Sort of like tack welding, but I’m not going to putty up the entire perimeter of the firewall. It will get several coats of fiberglass to make sure that it is integrated with the body. This also means that the sides can never be unbolted from the cowl again. (I am wondering if this stupid phone will ever learn to spell the word cowl or towel correctly as it always tries to make it a different word or a proper name like Howell.)

    While my epoxy filler is curing up I will start wiring the tail lights. I’m going to need some epoxy, more wire loom, and some heat shrink tubing before I proceed though.

    So I’m off to go shopping at the hardware store and I will check you all later.
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  5. Bobster

    Bobster .30-06 Supporter

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    2,614
    I hope you are not "downstream" from Mt. Rainier... :eek: ;)
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  6. Bobster

    Bobster .30-06 Supporter

    Messages:
    2,614
    That is what the pedal is for--initial heat then you back off. If clamped in a vise and you overheat, the vise will help to suck up the heat and cool the part down to less melty temps. I didn't mean to say that part would require 125A. I probably would have started with 80a because you are welding an "edge" and there is no where for the heat to go...
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  7. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    Oh I forgot to mention that I did not use the pedal. This was my first attempt using the finger switch.

    My theory was that fingers are faster than feet. Plus I was just going to try it and see how it worked.

    It works.

    Anyhow I was just pulsing the torch with my finger and not using the pulse control on the machine at all. If I had started out about 50 to 60 amps with 1/8” more stick out I think it would’ve come out much nicer.

    The truth is that I knew that I could do this but I didn’t know how good it would come out and I didn’t really care, because I’m gonna get rid of these parts in the near future. So this was just kind of a test coupon for me. I knew if I screwed it up I could just make another hook and weld it on.
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  8. Bobster

    Bobster .30-06 Supporter

    Messages:
    2,614
    Is that an on/off switch or a variable? If an on/off, you set your parameters, hit the switch, ramps up to selected amps or pulse, hit switch again it ramps down. Variable would work just like the pedal, only controlled by your finger or thumb...
  9. Rodburner

    Rodburner .270 WIN

    Messages:
    431
    Lol, at 14,400+’, everywhere is downstream.. but I’m 80 miles away and 400’+ above sea level. When the ice caps melt,I will have a water front property with a view of a mountain…
    fellmann likes this.
  10. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    Just a switch AFAICT.

    It does 2T or 4T with the trigger switch. I only tried 2T of course, for such a short weld.

    I gave it some ramp time, as you describe, plus a lot of post flow to cool the weld.
  11. Ernst

    Ernst .30-06 Supporter "Philanthropist"

    Messages:
    1,075
    Thought for the Day

    1634247815036.png
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  12. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    Good morning guys.
    Well I got the parts to repair my boat, but right now I’m on another job.
    B50494B8-16EC-4988-82CD-6EB3E676B707.jpeg

    Today I’m trimming the VW floorboards because I was afraid to trim enough when I trimmed them originally & now I have to trim them 2 to 3 times anyway . . . bleah.
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  13. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    That propeller came from Ohio and I got it in three business days.
    :cheers:
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  14. Rodburner

    Rodburner .270 WIN

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    431
    I’ve always gotten a kick out of the disparity in shipping various items..I’ve had it take 2-3 weeks to get little items, but 3 days for my tankless water heater from New York and a set of custom magnesium wheels for my Triumph from London UK…are you gonna try the TIG on the old prop?..
  15. Bobster

    Bobster .30-06 Supporter

    Messages:
    2,614
    You know the old adage: "Measure Twice--Cut Once" or was it "I cut it twice and its STILL too short..." :D
    CaddmannQ likes this.
  16. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443

    That propeller is fiberglass filled nylon plastic.
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  17. Rodburner

    Rodburner .270 WIN

    Messages:
    431
    Gotcha…something for the fish to play with…lol
  18. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    Plastic propellers are not the greatest but you have a lot less chance of bending your prop shaft when you hit something.
    Rodburner likes this.
  19. Rodburner

    Rodburner .270 WIN

    Messages:
    431
    Makes sense. Your pics didn’t register a scale to me, so I just equated it to the big “ power prop” we had on our Mercruiser 120 as a kid..
  20. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    9,443
    F5018374-0BCE-4CE4-A3C1-D1BA2C84FFD9.jpeg This is a Minnkota 112#
    Lots smaller for sure. ;)
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