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New 2 X 72" Grinder Build

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

  1. ToddR

    ToddR Putterer, Tinkerer, Waster of Time Staff 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.
     
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  6. dancom

    dancom Dust Maker Best Shop Tool

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  7. JSweet

    JSweet New Member

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    Dan, when using the sayber OSG long platen plans for the 10" motor are there corrections to the plans or reworks to them that need to be taken into concideration? or have the plans themselves been updated to take those corrections you have posted on that site into consideration?

     
  8. dancom

    dancom Dust Maker Best Shop Tool

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    The DC1 files are up to date. Steve Rice did some changes to the design and uploaded them as SR1s. I haven't made one from Steve's designs so I cannot vouch for the accuracy. However he's active in the forum and can answer questions as they come up.
     
  9. JSweet

    JSweet New Member

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    Dan, what wheel suggestions would you recommend for your Sayber OSG long platen plans? I read through the grinder post but didnt see which you used. If missed it i apologize for bringing it up again.

    Thanks in advance

    As for my progress
    1. Motor purchased, Check
     
  10. ToddR

    ToddR Putterer, Tinkerer, Waster of Time Staff Member

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    Do you mind me asking, where did you get the motor from? I can find a lot of places online selling a good motor with the right specs but, they all seem fairly outrageously priced. I know I've read a bunch of posts recommending some but, i'm horribly unorganized with filing the information as i learn it. If i don't use it right away, it gets lost.

    Thanks in advance JSweet
     
  11. dancom

    dancom Dust Maker Best Shop Tool

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  12. dancom

    dancom Dust Maker Best Shop Tool

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    For your motor selection you need to answer some questions first. I have this flow chart to help you select the right motor.
    [​IMG]

    Once you know what you need, then start by looking at Automation Direct. I got a 2 hp three phase motor delivered for $213 Canadian bucks.

    Dan
     
  13. JSweet

    JSweet New Member

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    Im following Dan's plans so i'm going off the spec's he provides. I got the motor from Automation Direct as well.
     
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  14. JSweet

    JSweet New Member

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  15. JSweet

    JSweet New Member

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    3. KBAC unit purchased. Amazon. $$$
     
  16. JSweet

    JSweet New Member

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    Going over the list of hardware for this build. Mcmaster-Carr sells a lot of the pieces in larger quantities ie 50pc per when i only need say 6. Has anyone out there bought them that may be willing to part with some to save me buying excess that i may never use? Or looking at buying themselves and we can split cost on some of them?? Im in Georgetown Ontario.

    Thanks
     
  17. dancom

    dancom Dust Maker Best Shop Tool

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    If you can source them locally and get exactly what you need that would be best. I found that all the searching and driving around was worth more than having to pay for the rest of the box. One order and done. Of course all the fasteners don't have to be stainless steel. Zinc plated is fine for a grinder if you you were to be spraying some water around as coolant I don't think you'd have a problem with zinc.

    I can take a look and see what extras I have. I'll check tonight and PM you.

    Dan
     
  18. JSweet

    JSweet New Member

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    First quote from Accupath Waterjet for cutting material - $490 with me supplying the material
    Thanks Dan appreciate it. i totally get the ease of not having to drive all over piecing this together. i would otherwise do the same and buy it all but the chance of me using the remaining bits is unlikely.
     
  19. dancom

    dancom Dust Maker Best Shop Tool

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    Do you know of anyone around town with a laser? Waterjet will always be more time consuming and they charge "table time." http://atlantislabs.ca/formtech/ made one for $295 including material. Even with freight it may be cheaper for you.
     
  20. JSweet

    JSweet New Member

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    A friend of a friend has a laser. just waiting on him to get back with a price and time availibility. he was out of town for xmas holidays and recently back. i was just getting impatient so i emailed a few places to see what they charged.
     

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