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Thread: Mill conversion. Home made "Marvin" attachment

  1. #1
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    glens5's Tools

    Mill conversion. Home made "Marvin" attachment

    Home made "Marvin" attachment horizontal to vertical mill conversion.
    1" spindle with MT2 taper.
    Attached Thumbnails Attached Thumbnails Mill conversion. Home made "Marvin" attachment-p1070849.jpg   Mill conversion. Home made "Marvin" attachment-p1070804.jpg   Mill conversion. Home made "Marvin" attachment-p1070807.jpg   Mill conversion. Home made "Marvin" attachment-p1070852.jpg  

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    Last edited by glens5; 06-02-2020 at 07:04 PM.

  2. The Following 15 Users Say Thank You to glens5 For This Useful Post:

    Al8236 (06-04-2020), Crusty (06-02-2020), DIYSwede (06-05-2020), Drew1966 (06-03-2020), EnginePaul (06-04-2020), JDrouin (06-05-2020), Jon (06-03-2020), Lee Bell (06-03-2020), mwmkravchenko (06-03-2020), NortonDommi (06-03-2020), olderdan (06-04-2020), Paul Jones (06-05-2020), Scotty12 (06-03-2020), threesixesinarow (06-03-2020), Toolmaker51 (06-03-2020)

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    Thanks glens5! We've added your Horizontal Mill Vertical Conversion to our Milling category,
    as well as to your builder page: glens5's Homemade Tools. Your receipt:




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    Supporting Member mwmkravchenko's Avatar
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    Pretty slick. How well does it work?

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    Supporting Member Drew1966's Avatar
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    Elegant. Simple. Good job of doing ones best to battle Murphy.

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    Supporting Member NortonDommi's Avatar
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    Very nice. I'm thinking that it is super smooth in use?

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    Supporting Member Toolmaker51's Avatar
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    Toolmaker51's Tools
    Countless little horizontal mills went to scrap because potential buyers couldn't visualize this.
    Driving from the machine spindle infinitely better than placing that weight atop the fabricated spindle housing. And, still have ready use of the horizontal spindle. You say the bore is #2 Morse Taper; appears those are drawbar [not drift] holders?
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  8. #7
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    glens5's Tools
    Takes a few minutes to set up and align but other than that it seems to work just fine.
    I haven't checked for run out yet but if there is any I'm sure it'll be from the Banggood collets and holder.

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    glens5's Tools
    The over arm support is 2 1/2" for the for the horizontal spindle support so I turned the vertical attachment from 3" cold rolled steel.
    The bearings are tapered roller bearings, L44643. I turned an extra fine thread on the top of the spindle for adjusting the end play and run out to zero with a special machined castle nut with a round collar that projects through the top seal.
    I wasn't able to turn the bearing cup seats with the two sections welded together and was concerned about the weld pulling but with the wall of the housing close to 1" thick there didn't appear to be any distortion. Peening the short alternate welds may have helped too.
    Interference fits for the spindle bearings as well as the bearings in the idler pulleys.
    MT2 taper with a draw bar. MT3 would have been preferred but would have been too large.
    Attached Thumbnails Attached Thumbnails Mill conversion. Home made "Marvin" attachment-spindle.jpg  
    Last edited by glens5; 06-04-2020 at 10:34 AM.

  10. The Following 3 Users Say Thank You to glens5 For This Useful Post:

    olderdan (06-04-2020), threesixesinarow (06-05-2020), Toolmaker51 (06-04-2020)

  11. #9
    Supporting Member mklotz's Avatar
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    Given my name, I have a vested interest in this question...

    Why is it called a "Marvin" attachment ?
    ---
    Regards, Marv


    Home Shop Freeware
    http://www.myvirtualnetwork.com/mklotz

  12. #10
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    glens5's Tools
    Certainly not an original idea on my part but it looked like a good idea for converting to vertical.
    Attached Thumbnails Attached Thumbnails Mill conversion. Home made "Marvin" attachment-img24.jpg  
    Last edited by glens5; 06-04-2020 at 01:13 PM.

  13. The Following User Says Thank You to glens5 For This Useful Post:

    Jon (06-04-2020)

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