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Thread: Arbor Press Modification

  1. #1
    Join Date
    Jul 2007
    Location
    West Michigan
    Posts
    1,822

    Default Arbor Press Modification

    Gentlemen,

    I implemented a modification on both of my arbor presses, an idea that I read about on this site. A while back, I had to broach a 5/16 keyway and my big press did OK as long as the lever was near horizontal. I had to use a series of shims to give me the proper angle on the lever. This modification allows the pinion gear to freewheel at the top of the stroke so the lever can be set to any angle that the teeth on the rack gear will allow.

    Brian

    OPEN EYES, OPEN EARS, OPEN MIND

    THINK HARDER

    BETTER TO HAVE TOOLS YOU DON'T NEED THAN TO NEED TOOLS YOU DON'T HAVE

    MY NAME IS BRIAN AND I AM A TOOLOHOLIC

  2. #2
    Join Date
    Feb 2012
    Location
    Crooked River Ranch, ORegon Near Redmond
    Posts
    51

    Default

    That's why they make arbor presses with ratcheting handles.

    Paul

  3. #3
    Join Date
    Jan 2010
    Location
    Kansas City area
    Posts
    2,954

    Default Arbor Press Mod

    Great idea Brian! Thanks for the picture!

  4. #4
    Join Date
    Jul 2007
    Location
    West Michigan
    Posts
    1,822

    Default

    Quote Originally Posted by co_farmer
    That's why they make arbor presses with ratcheting handles.

    Paul
    Wish mine had one.

    Brian
    OPEN EYES, OPEN EARS, OPEN MIND

    THINK HARDER

    BETTER TO HAVE TOOLS YOU DON'T NEED THAN TO NEED TOOLS YOU DON'T HAVE

    MY NAME IS BRIAN AND I AM A TOOLOHOLIC

  5. #5
    Join Date
    May 2006
    Location
    north bay area
    Posts
    4,195

    Default

    Re: Ratcheting handle:

    Easy- just adapt a used 3/4 inch drive ratchet with a longer handle.

  6. #6
    Join Date
    Jul 2007
    Location
    West Michigan
    Posts
    1,822

    Default

    Quote Originally Posted by sasquatch
    Re: Ratcheting handle:

    Easy- just adapt a used 3/4 inch drive ratchet with a longer handle.
    This modification cost me nothing except about an hour if my time. It also does not shorten the effective opening of the press. No material needed for an adapter either.

    Brian
    OPEN EYES, OPEN EARS, OPEN MIND

    THINK HARDER

    BETTER TO HAVE TOOLS YOU DON'T NEED THAN TO NEED TOOLS YOU DON'T HAVE

    MY NAME IS BRIAN AND I AM A TOOLOHOLIC

  7. #7
    Join Date
    Jan 2004
    Location
    Missouri
    Posts
    16,674

    Default

    Quote Originally Posted by bborr01
    This modification cost me nothing except about an hour if my time. It also does not shorten the effective opening of the press. No material needed for an adapter either.

    Brian
    But you can't turn over the ram so well.... One end of mine has a hole for insertable pins, the other does not. While I can put in a plate, I can also turn over the ram in case I want to push things that might burr up the hole but would be clumsy with a plate.

  8. #8
    Join Date
    Nov 2001
    Location
    SE Cheesehead land, WI
    Posts
    562

    Default

    I really like this mod.
    Very timely in that I was just griping about how the handle was in the wrong place for doing some press work this week.
    What did you use to carve out the clearance in the ram?

    Thanks for posting!
    Now on my To Do List.
    Last edited by T.Hoffman; 02-21-2012 at 10:53 PM.

  9. #9
    Join Date
    Jul 2007
    Location
    West Michigan
    Posts
    1,822

    Default

    Quote Originally Posted by T.Hoffman
    I really like this mod.
    Very timely in that I was just griping about how the handle was in the wrong place for doing some press work this week.
    What did you use to carve out the clearance in the ram?

    Thanks for posting!
    Now on my To Do List.
    I used a boring head and took several small cuts of about .025 each. To set up the proper radius, I picked up the edge of the rack gear with an edgefinder then moved the table over half of the diameter of the pinion gear. Then I adjusted the boring bar so it just touched the rack. Easy mod and works well.

    Brian
    OPEN EYES, OPEN EARS, OPEN MIND

    THINK HARDER

    BETTER TO HAVE TOOLS YOU DON'T NEED THAN TO NEED TOOLS YOU DON'T HAVE

    MY NAME IS BRIAN AND I AM A TOOLOHOLIC

  10. #10
    Join Date
    Nov 2006
    Location
    Louisiana
    Posts
    334

    Default

    just slide the pinion out til it clears the rack, reposition the handle and press on.

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