Inside corner plane – where would one use this?

Welcome! Forums General Woodworking Discussions Tools and Tool Maintenance/Restoration Inside corner plane – where would one use this?

Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • #315614
    mikeprutz
    Participant

    I got this as a gift from a friend yesterday. I was wonderinf if anyone knew of a specific woodworking process that would need such a specialty plane.

    InsideCornerPlane

    #315617
    Ed
    Participant

    This is a core box plane. Believe it or not, it is used to plane a cylindrical depression! Go drive two nails into a piece of wood a few inches apart and place a framing square, try-square, or just a squared piece of wood against the two nails. Put a pencil tip at the corner of the square, where the handle meets the blade. Now move the square to all the positions it can engage the nails. You will find that the pencil traces out a circle. If you take the core box plane and run it along two rails, you have the same principle, where the rails take the role of the two nails. The tip of the cutter will traverse a circle plowed across the material. I’ve not used one, but I think they would hog out the material with other tools and use the core box to refine the result.

    Why do this? For casting metal parts. You’ll need to look it up because it’s not something I know much about. I once worked with a guy that was a pattern maker before the steel industry died. He could have told you. By the time I knew him, he was doing landscaping and odd jobs.

    #315618
    Larry Geib
    Participant

    A further discussion is here

    Blood and Gore

    Note the three versions start their numbering right after the monstrous Stanley #55, and are every bit as useful in the average shop.

    #315619
    Larry Geib
    Participant

    A further discussion is here

    Blood and Gore

    Note the three versions start their numbering right after the monstrous Stanley #55, and are every bit as useful in the average shop.

    Yours doesn’t look like a Stanley model, but I’ve only ever seen a couple.

    #315621
    Ed
    Participant

    Here’s a video that explains the role of cores in the casting process. The first 8 minutes are devoted to making a core box, but not with a core box plane. The rest of the movie shows how the core is used in casting. Hope it helps.

    #315830
    mikeprutz
    Participant

    Thanks guys. Now it makes sense!

    • This reply was modified 4 years, 11 months ago by mikeprutz.
    #315898
    mikeprutz
    Participant

    Wow – not my first guess. There were actually two of them, one was a Stanley but he got me this one because it was more mysterious with no name or markings at all.

    Thanks guys.

Viewing 7 posts - 1 through 7 (of 7 total)
  • You must be logged in to reply to this topic.