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Thread: Trapdoor Gin Pole Project underway, feedback/suggestions appreciated.

  1. #11
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    Interesting thread! Both the gin pole construction and the drilling info.
    There is or used to be on the net a pdf TM on rigging.

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    m
    Last edited by gentrysgarage; 05-01-2019 at 23:46.
    03-1943 g-7123 COE 4x4 REG# 3219442
    02-1952 M135 w/winch REG# 41144752
    My YouTube Channel https://www.youtube.com/channel/UCiU...7Zp-jBw/videos

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    To paraphrase and add to what my hero Big Daddy Roth says when the pile gets yeah big its time to start building and not to stop till the pile is gone, then build the pile again, Rinse, Cycle Repeat! The PILE is ALLLLIIIIIVVVVVVEEEEE LOL! Got most if not all of the steel
    Parts Pile 5.1.19.jpg
    PS can you tell I goot HADD? LOL!!!!
    Last edited by gentrysgarage; 05-01-2019 at 23:47.
    03-1943 g-7123 COE 4x4 REG# 3219442
    02-1952 M135 w/winch REG# 41144752
    My YouTube Channel https://www.youtube.com/channel/UCiU...7Zp-jBw/videos

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    Default 5.8.19 Update.

    Was super busy this weekend with a fruitless Swap Meet event. I packed the 1992 Dodge 3/4 ton long bed extended cab loaded to over the brim in the bed and cab of British preunit motorcycle parts.But Monday I got some cool tools
    Pre Tools layout
    IMG_2324.jpg
    It wasn't laid out as nice after this weekend with all the motorcycle parts, but after the new tools arrived:
    IMG_2328.jpg

    Now a question for the mechanical engineers, I think I am going to have the 5/16 plate for the mast head cut at a water jetting outfit. I am planning on drilling two holes in each sleeve the boom poles slip into the top most is a straight 3/4 hole and will use a bolt the bottom hole will be on an arc. The reason being that initial calculation of the triangle with the booms extended (20 feet long'ish) the angle is 9.56*. the booms shortened ((12 feet'ish) the angle is 15.97, not much difference. What do you guys say? Thanks!

    03-1943 g-7123 COE 4x4 REG# 3219442
    02-1952 M135 w/winch REG# 41144752
    My YouTube Channel https://www.youtube.com/channel/UCiU...7Zp-jBw/videos

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    Default 5.11.19 Update

    Todays update 5.11.19:Attachment 1701445Does not have the bolts holes and slits for the lower holes yet, but otherwise finalized design.
    IMG_2330.jpg

    And it seems (at least from the other forums I am on people are interested in my thought process so here is a pic of a couple of pages in my notebook showing the thought process of how I got from point A to point B. Also note that there are notes as to the vertical plates, but those pictured are NOT the final design!
    Attachment 1701446
    IMG_2331.jpg
    03-1943 g-7123 COE 4x4 REG# 3219442
    02-1952 M135 w/winch REG# 41144752
    My YouTube Channel https://www.youtube.com/channel/UCiU...7Zp-jBw/videos

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    Default 5.11.19 Update 2

    ​OK the width measurements went up a 1/2" to accommodate the upper snatch block and I got the Vertical pieces designed will dimension and darken tomorrow but here it is!
    IMG_2337.jpg
    03-1943 g-7123 COE 4x4 REG# 3219442
    02-1952 M135 w/winch REG# 41144752
    My YouTube Channel https://www.youtube.com/channel/UCiU...7Zp-jBw/videos

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    Subscribed!

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    I have to admit....I'm lost. Where is the winch located?
    M35A3 4x4 "Money Pit"
    M929A2
    (14) 5 tons bought and sold

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    Hi Toby, the winch will be located between the frame rails underneath the still missing bed. The reason being is I want to have full use of the bed when not lifting...and not to "lift anything more than the booms and masthead when I need to raise something heavy, so everything will be hidden when not in use...thus the "trapdoor" part.
    On other notes, I might not have to widen the center of the masthead, I think I was getting myself confused, I wish to put the masthead on a diet, but might not be able to and thus I guess this isn't the final design....but close to the final revision. Any MEs out there can suggest some "speed holes" LOL! Lastly in the crude drawing of the masthead I think I had planned on 1/4" plate, I have upped it and the boom mount plate to 5/16" Plate.
    Last edited by gentrysgarage; 05-12-2019 at 10:44.
    03-1943 g-7123 COE 4x4 REG# 3219442
    02-1952 M135 w/winch REG# 41144752
    My YouTube Channel https://www.youtube.com/channel/UCiU...7Zp-jBw/videos

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    Gin pole vertical with speed holes!
    IMG_2340.jpg
    03-1943 g-7123 COE 4x4 REG# 3219442
    02-1952 M135 w/winch REG# 41144752
    My YouTube Channel https://www.youtube.com/channel/UCiU...7Zp-jBw/videos

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