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New 2 X 72" Grinder Build

Discussion in 'Grinders' started by dancom, Jun 4, 2017.

  1. ToddR

    ToddR Active Member

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    Awesome. I think I read that but I like getting it in clear and certain terms. Last question, I got a quote for $350 to waterjet the parts. But the guy said it included the steel. The whole thing is aluminum right? Are parts of it steel? I didn't think so but wondered if there was something specified on the plans

    Thanks Dan. I really don't want to mess up.
     
  2. dancom

    dancom Dust Maker Best Shop Tool

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    The pieces are steel: A36 hot rolled 3/8" for most of the parts. The base and platen are 1/4" steel. The steel is important as you will be tapping some holes to screw parts into. I don't know how alum would hold up. I used alum for the tool arms as these were actually cheaper than steel at the Metal Supermarkets. (??? I have no idea why)

    The material is defined in the cut drawing. One guy had his cut from unknown steel which was really hard to tap and he ended up welding some spots instead of bolting it together. That would be okay, but it is no weld by design.

    $350 is not a bad price for the steel and cutting.

    The forum is there to offer help. As far as I know there are three of these built now. Pretty incredible.

    Dan
     
  3. John Noon

    John Noon Well-Known Member

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    For steel you can ask for the Canadian equivalent CSA G40.21 44W or even 350W all of which will work. There is no need for any fancy steels in this kind of project, unless they offer a discount to use some scrap they have laying around. Just be sure to ask if it can be drilled and tapped easily.
     
  4. dancom

    dancom Dust Maker Best Shop Tool

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    For what it's worth, Water Jet gave me certificates for the steel from C.W. Carry. I thought that was kind of neat.
     
  5. Nate_Dawg

    Nate_Dawg New Member

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    Where can I find the CAD file for this? I will definitely make a 3d model.
     
    dancom likes this.
  6. dancom

    dancom Dust Maker Best Shop Tool

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