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Thread: Bump straight knurling tool

  1. #1
    Supporting Member Cascao's Avatar
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    Thumbs up Bump straight knurling tool

    After making a scissor knurling tool, I become intersted in making a straight knurling tool since it:

    > is greath when you need transmit torque between a steel shaft and a plastic wheel.;
    > it can bring me more choices when making stuff;
    > I can "save" a interference mount part infortunatelly made too loose.


    I took a 1/2" square and milled the wheel slot


    Turned the 1/4" pin from a 1045 bar. Here you can see there a section slighty bigger for interference fit


    Pin was heated red hot and quenched in water.


    After welding the side tab and cross drilling the 1/4" hole, I pressed the pin


    Test run. I've made a fine (0,8mm) and a coarse (1,25mm) wheel.


    My knurl set


    now waiting rain give a break for paint the tool...

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    Last edited by Cascao; Jan 15, 2018 at 06:58 AM. Reason: fixing foregin language issues.

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

    Andyt (Feb 27, 2020), blkadder (Jan 22, 2018), Jon (Jan 15, 2018), mr95gst (Jan 16, 2018), olderdan (Jan 15, 2018), Paul Jones (Jan 15, 2018), PJs (Jan 16, 2018), rossbotics (Jan 19, 2018), Seedtick (Jan 15, 2018)

  3. #2
    Supporting Member olderdan's Avatar
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    Hi Cascao, nice work as usual,
    For what its worth I have found that straight knurl wheels will work just as well in your scissor tool.
    I have diamond knurls but prefer the straight ones and they have been mounted in my old scissor tool in the rear toolpost for years.
    I agree with your observations on their usfulness.

    Bump straight knurling tool-imgp0064.jpg
    Regards
    Olderdan

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  4. The Following 2 Users Say Thank You to olderdan For This Useful Post:

    Paul Jones (Jan 15, 2018), PJs (Jan 16, 2018)

  5. #3
    Supporting Member Cascao's Avatar
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    Olderan, didn't really know that straight knurl wheels can be used on scissor tools, nice to know. I belive (and hope) that since only one is needed, (the pressure on bearings is smaller) it is less harmfull to spindle bearings.

  6. The Following 3 Users Say Thank You to Cascao For This Useful Post:

    olderdan (Jan 16, 2018), Paul Jones (Jan 15, 2018), PJs (Jan 16, 2018)

  7. #4
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    Thanks Cascao! We've added your Knurling Tool to our Metalworking category,
    as well as to your builder page: Cascao's Homemade Tools. Your receipt:




  8. #5
    Supporting Member Cascao's Avatar
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    Ended making a QCTP 110 style knurling tool fix too.



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