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Mounting I-beam and chainfall over lathe

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  • Mounting I-beam and chainfall over lathe

    Back in May I welded together a super structure that attaches to the joists and sticks through the ceiling drywall to support an I-beam. Once I move the lathe, the I-beam will be directly over my lathe. The I-beam will support a chainfall that will be used to lift heavy chucks and tailstocks for the lathe. Below is a link to the project to weld and install the superstructure.

    https://weldtalk.hobartwelders.com/f...ry-above-lathe

    Now that the drywall has been installed, this project documents the process to install the I-beam on the superstructure.

    The first picture shows a SolidWorks picture of the support structure weldment.

    1. Isometric assembly
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    The next picture is an exploded view of the support structure weldment shown above.

    2. Exploded assembly
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    The following picture shows the cross beam with "hockey pucks" that will stick through the drywall to provide support for the I-beam.

    3. Exploded cross beam
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    This picture shows the drywall lifting rig that my friend Ray brought over to be used to lift the 4" x 12' pieces of drywall for the ceiling. If you look closely you can see the support structure weldments in the ceiling

    4. Lifting 4ft x12ft Drywall
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    I inserted threaded rods that were sharpened to a point into the "hockey pucks" of the cross beam of the support structure weldment. The threaded rods were used to mark the back side of the drywall with the location to hole saw clearance holes in the drywall to clear the round boss of the "hockey pucks". As you can see in the following picture the holes in the drywall aligned perfectly with the boss of the "hockey pucks".

    5. Threaded Points to mark hole location
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    sigpic
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

  • #2
    My nephew Phil came over from Arizona for a visit and he helped me to set up the spacing of the chainfall.

    6. Setting spacers on chainfall
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    The next picture shows using a manual fork lift to lift the I-beam and chain fall into position.

    7. Lifting I-beam into place
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    Next Phil tightened the 7/16" screws to attach the mounting plate of the I-beam to
    the "hockey pucks" of the cross beam of the support structure weldment.

    8. Tightening Bolts
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    The last step was trying out the chainfall. As you can see I will have to shorten the drive chains.

    9. Trying out the chainfall
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    -Don

    sigpic
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

    Comment


    • #3
      WOW! Pat your back and shake your hand. Well done.

      Comment


      • #4
        Originally posted by oldguyfrom56 View Post
        WOW! Pat your back and shake your hand. Well done.
        Thanks.

        -Don
        sigpic
        Miller Thunderbolt
        Smith Oxyacetylene Torch
        Miller Dynasty 200DX
        Lincoln SP-250 MIG Welder
        Lincoln LE 31 MP
        Clausing/Coldchester 15" Lathe
        16" DuAll Saw
        15" Drill Press
        7" x 9" Swivel Head Horizontal Band Saw
        20 Ton Arbor Press
        Bridgeport

        Comment


        • #5
          The last step in the process was to install a stop on both ends of the rail to keep the trolley from riding off the end. You don’t want to just use a bolt head as a stop because the wheels of the trolley can ride up on it and still come off the rail. The best system is to stop against the carriage of the trolley. By code modern trolleys have carriages that are designed to limit the amount that the trolley can fall if the wheels fail or fall off. My stop contacts this fall limiting bracket.

          Here is a picture of me machining the stop bracket. I machined the top at a 5° angle to match the slope of the flange of the I-beam. I also cut a radius in the corner. This project also gave me an opportunity to demonstrate machining on the milling machine for my nephew Phil, who is just starting his Junior year in Mechanical Engineering.

          10. Machining stop
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          11. Stop machined
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          My nephew Phil installing the stop.

          12. Phil Installing stop
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          13. Stop installed end view
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          In this view you can see the bracket that limits the amount that the trolley can fall if the wheel fails or falls off.

          14. Stop installed side view
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          Last edited by Don52; 07-02-2019, 09:18 AM.
          sigpic
          Miller Thunderbolt
          Smith Oxyacetylene Torch
          Miller Dynasty 200DX
          Lincoln SP-250 MIG Welder
          Lincoln LE 31 MP
          Clausing/Coldchester 15" Lathe
          16" DuAll Saw
          15" Drill Press
          7" x 9" Swivel Head Horizontal Band Saw
          20 Ton Arbor Press
          Bridgeport

          Comment

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