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Thread: Drill Press Centers...Align spindle to holes in your part

  1. #1
    jjr2001's Avatar
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    Drill Press Centers...Align spindle to holes in your part

    These centers for the drill press are for quickly locating a hole in your part.
    Not as precise as other methods but quick and accurate enough for a lot of parts.
    Each center has a 50 degree included angle. However these are made so
    they can be used on thin or thick parts.

    Each one has one end shortened so larger holes can be indexed in thin parts
    where the pointed end would bottom out.

    Pointed ends can be used to index holes in thick parts or pickup scribed layout lines.

    I made 5 sizes but the sky is the limit.
    5/8
    1/2
    3/8
    5/16
    1/4

    All are made from short cutoffs of drill rod but not hardened.
    I don't think that would be necessary for the intended use.

    Cheers, JR
    Attached Thumbnails Attached Thumbnails Drill Press Centers...Align spindle to holes in your part-img_2411.jpg  
    Back to the shop.

  2. The Following 9 Users Say Thank You to jjr2001 For This Useful Post:

    aussie (04-13-2019), Delta Designs (02-20-2019), Metallurg33 (02-24-2019), old_toolmaker (03-02-2019), Paul Jones (02-19-2019), ranald (02-21-2019), rgsparber (02-19-2019), Seedtick (02-20-2019), that_other_guy (02-20-2019)

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    kquiggle's Avatar
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    Good idea - the shortened ends are a nice touch. I can see where these would be very handy when there is not clearance for a wiggler (or similar).

    As you noted, these are not as accurate as some other methods - I expect you will pick up some runout errors - but perfectly acceptable for many jobs.

    Now, where did I put that bunch of drill rod I think I have . . .?

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    jjr2001 (02-20-2019)

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    Thanks kquiggle, hope you find your drill rod and make some drill press centers. As you know:
    You can never have too many tools in the shop!

    Cheers, JR
    Back to the shop.

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    Thanks JR, not sure if I could make these easily.

    As an alternative (not detracting from your fine work) I use a V router bit which is great. (just have to take care not to drop it as it is tungston carbide but my home made table is wood on top of steel frame attached to the original press table).

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    jjr2001 (02-21-2019)

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    Thanks Ranald, the v-router bit sounds like a great idea, fast,inexpensive,and ready made.
    I like using existing tools to solve a problem.
    Cheers, JR
    Back to the shop.

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    Thanks jjr2001! We've added your Drill Press Centers to our Drilling and Drill Presses category,
    as well as to your builder page: jjr2001's Homemade Tools. Your receipt:





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