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Thread: Project 12, from scootarida1, Terminal Post Puller

  1. #1

    Default Project 12, from scootarida1, Terminal Post Puller

    Here is a post puller I will be fabricating over the next few weeks in order to see the force required to pull a terminal off of a battery post using various torques for the nut and bolt. This is a CAD'd version and will update as I build it. Basically it will be attached to a pull tester and it will measure lbs till fracture or release:









    Brandon Raineri
    The Pennsylvania State University
    Studying Industrial Engineering

    Everlast PowerPro 205
    Everlast I-Mig 200
    SpeedGlas 9100x
    Milwaukee 14" Dry Cut Saw
    Craftsman 6"x48" Belt Sander with 9" Disc Sander

  2. Default

    Brandon

    Do you have to go back to school after your internship? Would you go work for them looks like they have nice expensive equipment. I would stay ha. My Dad is thinking about building a CNC machine but not sure where he and a friend are on it. They are building to to maybe keep price down. his friend as a big one now but wants a new one.

  3. #3

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    Quote Originally Posted by chadrock View Post
    Brandon

    Do you have to go back to school after your internship? Would you go work for them looks like they have nice expensive equipment. I would stay ha. My Dad is thinking about building a CNC machine but not sure where he and a friend are on it. They are building to to maybe keep price down. his friend as a big one now but wants a new one.
    Yeah I have to go back to school on the 22th but they have a pull tester and I'm building the adapter as seen in the pictures. I made some progress on it but I have to wait for the materials to come before I can weld it up. But here is the nut portion on the top of the picture that I started, its basically two 1/2-13 nuts welded together. I will be drilling a hole and putting it half way down and then weld around the top and bottom to make sure its secure. I had to grind it down as seen in the picture in order to make sure it will fit in the hole without to much clearance around the flats.



    And I would love to try and build a cnc machine even if it could only cut soft materials but I wouldn't even know where to start.
    Brandon Raineri
    The Pennsylvania State University
    Studying Industrial Engineering

    Everlast PowerPro 205
    Everlast I-Mig 200
    SpeedGlas 9100x
    Milwaukee 14" Dry Cut Saw
    Craftsman 6"x48" Belt Sander with 9" Disc Sander

  4. #4

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    Brandon Raineri
    The Pennsylvania State University
    Studying Industrial Engineering

    Everlast PowerPro 205
    Everlast I-Mig 200
    SpeedGlas 9100x
    Milwaukee 14" Dry Cut Saw
    Craftsman 6"x48" Belt Sander with 9" Disc Sander

  5. #5
    Join Date
    Sep 2011
    Location
    Middleburg Florida
    Posts
    556

    Default

    Perhaps a silly question, but your welded pair of 1/2" hex nuts has me wondering, how well does a bolt or threaded rod go through, or did you weld them while on a bolt or rod? As I was looking at it, my first thought was to thread a piece of steel or utilize a thread coupler to make sure the threads lined up perfect.
    Trip Bauer
    Former USN HT
    Everlast 200DX New Model
    Hobart Handler 125 MIG
    Van Norman #12
    Atlas 12" engine lathe
    '98 RoadKing - 84 Ironhead - 59 Ironhead

  6. #6

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    Hi A coupling nut is the better way to have a longer threaded part.
    Here are some trans tools I made years ago one is a pump puller and the other is for compressing clutches. Worked great on th350 and 700r4 trans.
    You can buy them at Home Depot or hardware stores many sizes.
    have fun
    Tom
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Everlast PM256
    Millermatic 180
    Hypertherm PowerMax 65 with machine torch
    Longevity Force Cut 80I
    DIY CNC table for plasma/routing
    13" metal lathe
    Small Mill
    ect, ect.

  7. #7

    Default

    I have been planning to make a few tools myself. One is a overhead valve sprint compressor that could be used without taking the head off the motor. I have half the stuff I need to build my own 5 axis CNC mill.
    Jason
    Everlast 255EXT - Perfection
    Everlast PowerPro 256 - UPS Demolished
    Everlast MTS200s
    12 Ton Shop Press
    DeWalt Hand Tools/ChopSaw

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