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Thread: Mini Lathe 4 4Jaw Modification

  1. #1
    Supporting Member old_toolmaker's Avatar
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    Mini Lathe 4 4Jaw Modification

    Mini Lathe 4 4Jaw Modification-392fa855-c679-40ee-a390-bdcc0eef6639.jpgClick image for larger version. 

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ID:	39102Mini Lathe 4 4Jaw Modification-3a09b5d3-66f0-4ef7-89fd-819b40d648e6.jpgMini Lathe 4 4Jaw Modification-e67c6d68-f718-430a-b370-7f6df18f9383.jpgMini Lathe 4 4Jaw Modification-0c6c0fdb-3b2a-4bb8-9543-4e7e57a4b7ca.jpgI modified my 4” 4 jaw chuck for my mini lathe. I was able to eliminate the adapter plate and machine out the back end of the chuck to allow direct mounting of the chuck. I added four new M6 mounting studs to fit the the spindle flange 4 hole mounting pattern. The overall chuck stack up thickness was reduced from 2-3/4” to 1-7/8”. The job went very well and I encountered no difficulty. The weight was reduced from 8.5 pounds to 6 pounds.[IMG]google drive[/IMG]Attachment 39093Mini Lathe 4 4Jaw Modification-8de015c7-64e7-4e44-8eca-1c1688f06ee2.jpgClick image for larger version. 

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ID:	39096Mini Lathe 4 4Jaw Modification-34116f90-74a2-4006-ae72-63065b5a29ef.jpgClick image for larger version. 

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    173 Best Homemade Tools eBook
    Last edited by old_toolmaker; Apr 4, 2021 at 06:44 PM. Reason: Add picture
    Dick


    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

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

    brianr47 (Apr 6, 2021), bruce.desertrat (Apr 5, 2021), DIYSwede (Apr 4, 2021), emu roo (Apr 5, 2021), Jon (Apr 5, 2021), marksbug (Apr 12, 2021)

  3. #2
    Supporting Member DIYSwede's Avatar
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    Nice work, getting rid of rotating mass and a good thing to be able to use all the bed length you can.
    A pic (or link to another HMT post?) of your cross slide (Unimat?) tailstock arrangement
    as glimpsed in lower right corner of your last pic would be much appreciated.

    Keep up the good work and ATB

    Johan

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

    old_toolmaker (Apr 4, 2021)

  5. #3
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    Thanks old_toolmaker! We've added your Lathe Chuck Modification to our Lathes category,
    as well as to your builder page: old_toolmaker's Homemade Tools. Your receipt:




  6. #4
    Supporting Member old_toolmaker's Avatar
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    DYI Swede,
    Thank you for your nice comments!
    I had some issues with posting the pictures. I will try to get a few more sometime today.
    Dick


    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

  7. #5
    Supporting Member old_toolmaker's Avatar
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    The issue I have is with the size of the image file. I am going to use an app to reduce the size in Mb to under 2 Mb.
    I am looking for a good app.
    Dick


    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

  8. #6
    Supporting Member metric_taper's Avatar
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    Dick, I use a free download viewer, that lets you resize the photo, and then save it to what ever directory you want.
    https://www.irfanview.com/
    There's a choice of 32 or 64 bit programs. It will install, then any jpg you select will be opened. Then if you click on the top tool bar "Image", "Resize/Resample" you can select the downsample. Then save as to where you want it kept, I usually write to same directory, and change the name, so I don't overwrite the original.

  9. #7
    Supporting Member bruce.desertrat's Avatar
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    bruce.desertrat's Tools
    Quote Originally Posted by old_toolmaker View Post
    The issue I have is with the size of the image file. I am going to use an app to reduce the size in Mb to under 2 Mb.
    I am looking for a good app.
    A decent online tool is here Simple Image Resizer, resize online images without losing quality

    Windows 10 Photos app does this easily and well: https://www.groovypost.com/howto/use...resize-images/

    Also Irfanview for just about any version of Windows lets you set the desired file size. https://www.irfanview.com

  10. The Following User Says Thank You to bruce.desertrat For This Useful Post:

    old_toolmaker (Apr 6, 2021)

  11. #8
    Supporting Member old_toolmaker's Avatar
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    Thanks for the help with resizing photos.
    I have attached 2 new photos. I hope this shows the before and after dimensions.

    Mini Lathe 4 4Jaw Modification-chuck234.jpgMini Lathe 4 4Jaw Modification-chuck1875.jpg
    Dick


    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

  12. #9
    Supporting Member old_toolmaker's Avatar
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    metric_taper,

    Thanks for the tip.
    I found I had Adobe Photoshop on my computer. It has been quite a while since I last used it and had forgotten about it.
    Dick


    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

  13. #10
    Supporting Member old_toolmaker's Avatar
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    Thanks Bruce!
    Dick


    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

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