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Thread: ER-40 collet chuck for metal lathe.

  1. #1

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    aametalmaster's Tools

    Cool ER-40 collet chuck for metal lathe.

    Here is my ER-40 collet chuck i made for my SB 10K lathe. Its just a scrapbox steel bar threaded to fit the spindle and then the other end is threaded for a nut to hold the collet. The inside is taper turned to the collet angles as well as the inside of the nut end. I don't have plans just lots of building pics. I have lots of room so if the inside ever wears out i can recut the taper and freshen it up. Been using it for about 6 years with zero problems. The factory ER nuts have a ring to pop the collet free from the body as they do get tight gripping the part. I use an aluminum knocker bar thru my spindle to bump it free. Any ???? just ask...Bob
    Attached Thumbnails Attached Thumbnails ER-40 collet chuck for metal lathe.-5-threading-body-nose-cap.jpg   ER-40 collet chuck for metal lathe.-4-trying-collet.jpg   ER-40 collet chuck for metal lathe.-3-inside-taper-cut.jpg   ER-40 collet chuck for metal lathe.-2-chuck-body-threaded-spindle.jpg   ER-40 collet chuck for metal lathe.-1-chuck-body.jpg  


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  2. The Following 5 Users Say Thank You to aametalmaster For This Useful Post:

    dmaciel (Feb 22, 2013), Home-PC (Feb 22, 2020), Jon (Feb 18, 2013), kbalch (Feb 18, 2013), Paul Jones (Nov 15, 2014)

  3. #2

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    aametalmaster's Tools

    Cool Few more pics.

    Here are some more pics...Bob
    Attached Thumbnails Attached Thumbnails ER-40 collet chuck for metal lathe.-6-threaded-body-taper.jpg   ER-40 collet chuck for metal lathe.-7-boring-nose-hole-threading.jpg   ER-40 collet chuck for metal lathe.-8-nose-taper-cut-hole-bored.jpg   ER-40 collet chuck for metal lathe.-9-nose-threaded.jpg   ER-40 collet chuck for metal lathe.-10-collet-body-screwed-inside-nose.jpg  


  4. The Following User Says Thank You to aametalmaster For This Useful Post:

    Home-PC (Feb 22, 2020)

  5. #3

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    aametalmaster's Tools

    Cool

    Some more...Bob
    Attached Thumbnails Attached Thumbnails ER-40 collet chuck for metal lathe.-11-done-but-needs-shaping.jpg   ER-40 collet chuck for metal lathe.-12-after-shaping-suit.jpg   ER-40 collet chuck for metal lathe.-735b%5B1%5D.jpg   ER-40 collet chuck for metal lathe.-9201%5B1%5D.jpg   ER-40 collet chuck for metal lathe.-milling-block1.jpg  


  6. The Following 2 Users Say Thank You to aametalmaster For This Useful Post:

    Home-PC (Feb 22, 2020), Paul Jones (Oct 21, 2014)

  7. #4
    Jon
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    Thanks again aametalmaster! We put this one in our Lathes category, and of course on your homemade tools page: aametalmaster's Homemade Tools. Your receipt:




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  8. The Following User Says Thank You to Jon For This Useful Post:

    Home-PC (Feb 22, 2020)

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