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IndustryArena Forum > MetalWorking Machines > Benchtop Machines > The cutest face mill ever (ISO10 spindle and tool prototyping)
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  1. #1
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    The cutest face mill ever (ISO10 spindle and tool prototyping)

    Well, I've been up to silly things lately. I designed a tiny ATC spindle for my xzero mini raptor (which itself has been heavily revamped). As the title implies, the spindle is ISO10. You don't realise how small ISO10 is on a computer screen, but when you hold a 22mm 3d printed face mill with 3 CCMT 0602 inserts in your hand, you suddenly go "oh".

    Now it's time to make a real one.
    wotzBotz

  2. #2
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    Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    it's so cute! and that print looks great too!

    random thought,and realize i'm no expert...but wouldn't you want the inserts angled (not the rake angle) out the opposite direction to take advantage of axial chip thinning and reduce radial loading?

  3. #3
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    Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    they are angled 30 degrees for chip thinning... not sure what you mean. going the opposite way would make them a dovetail.
    rake is neutral as the inserts have their own positive rake. the tool uses the "unused" edges of the inserts after they get used in lathe tooling.
    wotzBotz

  4. #4
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    Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    You'll have to forgive my quickly put together sketch here, but this is what I was thinking. I guess i was under the impression that the machine it's going in wasn't very rigid since it's an iso10 holder and wouldn't be taking very large depth of cuts. Maybe i shouldn't assume things like that. haha

    but orienting it this way gives you that option and gives you a square shoulder to work with. Just a thought, but either way, it looks great and is a great reuse of otherwise worthless inserts!
    Click image for larger version. 

Name:	insert.JPG 
Views:	3 
Size:	29.2 KB 
ID:	420498

  5. #5
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    Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    It's a facemill, if you rotate the insert around to get a straight shoulder you can't access the face of your workpiece anymore with the shallow corner of the insert, and you have contact with the sharp corners of the insert that are worn/broken.

    I would have been all over this a year ago. I found the iso10 taper just not enough to deal with even a single flute sharp HSS cut at 1". How well are you handling all 3 cutters?

  6. #6
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    Quote Originally Posted by ihavenofish View Post
    they are angled 30 degrees for chip thinning... not sure what you mean. going the opposite way would make them a dovetail.
    rake is neutral as the inserts have their own positive rake. the tool uses the "unused" edges of the inserts after they get used in lathe tooling.
    I'd consider doing one for 45° so to do larger chamfers, as well as being a facemill
    ... make it a little longer so you can grip it & not get pinched when putting it into the spindle

  7. #7
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    Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    I have suggestions:

    1. Do what Superman suggested and make it longer. As a minimum I'd recommend making it the same length as an ISO10 collet holder with its nut would be. I don't think that the extra stick out at 22mm diameter is going to be significant deflection-wise, but keeping close to other tool lengths should help with Z-travel and work-holding.
    2. Make another. For me.
    3. Have you considered round inserts?

  8. #8
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    Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    haha

    i have to get back to this project. teknomotor launched an ISO20 spindle, but, its still a little expensive, and a little big, and overpowered for my small machine. So i think theres still a need for a very small ISO10 atc spindle.

    the face mill was made so short because i only have 100mm travel. i drew the er16 collet holders also as short as possible. was less about deflection, more about clearance.
    wotzBotz

  9. #9
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    Re: The cutest face mill ever (ISO10 spindle and tool prototyping)

    Quote Originally Posted by CS900 View Post
    You'll have to forgive my quickly put together sketch here, but this is what I was thinking. I guess i was under the impression that the machine it's going in wasn't very rigid since it's an iso10 holder and wouldn't be taking very large depth of cuts. Maybe i shouldn't assume things like that. haha

    but orienting it this way gives you that option and gives you a square shoulder to work with. Just a thought, but either way, it looks great and is a great reuse of otherwise worthless inserts!
    Click image for larger version. 

Name:	insert.JPG 
Views:	3 
Size:	29.2 KB 
ID:	420498
    that would be a flash cutter. a few problems with it however:
    - you dont get a square shoulder with ccmt inserts, unless you dont use any helical rake.
    - you waste 2 insert edges. with mine, you are using "scrap" inserts form a lathe cutter (or a different face / end mill) - using the 2 "free" edges that don't get used on the standard lathe tool.

    i could go 45 degrees, but, i just drew it at 30 cause.. reasons. its just a mock model after all.
    wotzBotz

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