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  1. Jul 28, 2018
    framing fowl

    framing fowl On a mission

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    I've never heard of power co-ops before.
     
  2. Jul 28, 2018
    Joel_BC

    Joel_BC Super Self-Sufficient

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    Crealcritter, you've chosen an interesting project. I've never done any AC welding myself — just DC.

    I started with oxy-acetylene (O/A) torch welding, because the torch system can also be used for heating/forming metal, cutting steel & iron, brazing, loosening rusted nuts & kingpins, etc. But I do most of my welding these days with a 240v 180-amp DC MIG machine. More or less portable, but a 240v extension cord is a heavy, clumsy item.

    But I always like these DIY re-use adventures like you're pursuing. Please do keep us posted.

    P.S. I'm editing my post because I just watched a Youtube vid about making a weldernator, and (contrary to my comment at the start) the guy ended up with a DC unit, even though he started with an alternator. So possibly that's how your unit will turn out?
     
    Last edited: Jul 28, 2018
  3. Jul 28, 2018
    CrealCritter

    CrealCritter Super Self-Sufficient

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    Yes it's high ripple DC current - there is a lot of good weldnator information on the hobart welders web site. Remember with the voltage regulator out of the picture, the faster the alternator spins the high the voltage it produces.

    https://weldtalk.hobartwelders.com/...chive/welding-projects/9974-alternator-welder
     
  4. Jul 29, 2018
    Mini Horses

    Mini Horses Super Self-Sufficient

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    Me either. But...……..

    ALSO -- I get power from my local co-op electric company. With that, I will say they are fantastic. We rarely have any big outages, or for long periods. I DO HAVE a large generator "in case". But this co-op is so very good with working to keep trees and other issues at bay so we have a great service. We sometimes do have outages when large storms come thru but they get to correction really fast!
     
  5. Jul 31, 2018
    Joel_BC

    Joel_BC Super Self-Sufficient

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    4 alternators? One for charging your truck's battery, one to use for welding whenever you want to. What will the other two be for?
     
  6. Jul 31, 2018
    CrealCritter

    CrealCritter Super Self-Sufficient

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    Winch, inverter, big radio, possible plow and salt spreader. I think I may end up doing a bank of 3 or 4 parallel connected 14 volt AGM battries.
     
  7. Aug 3, 2018
    Joel_BC

    Joel_BC Super Self-Sufficient

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    When you complete your project, how about posting some pics of the mounted alternators... and maybe of you welding with the set-up, too?
     
  8. Aug 4, 2018
    CrealCritter

    CrealCritter Super Self-Sufficient

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    Will do... the third alternator should be here tomorrow. it's another AD244 250 AMP. That'll leave one more to order. Still working on wooden quad alternator templates to attach to the power steering bracket which is cast aluminum so lots to tweaking with files. I'm going to do the brackets in 1/4" 6061 plate aluminum. so I can use my router and a carbide bit to cut the aluminum and make copies of my wooden templates but out of aluminum instead.

    Here's how far I've gotten with the quad alternator templates brackets out of wood. Three alternators across the top and one underneath. I'm just about happy with the templates.
    IMG_20180803_185956013.jpg

    Basicly my plan is to swap out the entire power steering backet and bolt in this power steering backet with the quad alternator bracket bolted to it. This is where the 4 alternators will sit under the hood. To the right of the one that's there now.
    IMG_20180803_190108746.jpg

    All I'm working off of is an internet picture, so hopefully it'll turn out as good. This is a single 3/8" thick bracket. Mine is going to be a sandwich of 2 1/4" backets. One in the front and one in the rear. I think a sandwich will be more strong than a single bracket like what is pictured.
    Trifold-BJ-Quad-Bracket-1030x773 (2).jpg
     
  9. Aug 4, 2018
    Joel_BC

    Joel_BC Super Self-Sufficient

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    Very cool, Creal.

    I worked a little bit in a friend's local, small aluminum foundry (by "small" I mean a 2-storey building, about 1500 sq ft on the ground floor). He used templates for his molds that were made either of styrofoam or wood. His way would have been to pour the dang things. But cutting from plate will be good.
     
  10. Aug 4, 2018
    CrealCritter

    CrealCritter Super Self-Sufficient

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    I bet that was quite an experience. I'm sure you learned at lot. I've done quite a bit of research on these multiple alternator brackets I haven't seen any that we're poured. There might be a market for a poured backets. Multi alternator are mainly used for emergency medical services vehicles (ambulances) where they need to produce lots of portable power.
     

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