End mill question

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End mill question

Postby Bb0901 » Sun Jan 07, 2018 5:55 am

When setting the xy position to the lower left start position do you center the end mill bit to the corner of the material or set the edge of the bit to the edge of the material
Thanks
Bill
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Re: End mill question

Postby Rcnewcomb » Sun Jan 07, 2018 5:57 am

Center
- Randall Newcomb
10 fingers in, 10 fingers out - another good day in the shop
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Re: End mill question

Postby Bb0901 » Sun Jan 07, 2018 6:02 am

Thanks RC
Just confirming what I thought.
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Re: End mill question

Postby KeithW » Tue Jan 16, 2018 12:02 pm

Slip in a V-bit (just hand tight enough to hold it) center on the point, and then put in the bit you want to carve with. It will be centered.
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Re: End mill question

Postby martin54 » Tue Jan 16, 2018 12:21 pm

KeithW wrote:Slip in a V-bit (just hand tight enough to hold it) center on the point, and then put in the bit you want to carve with. It will be centered.


I have done something similar using a D shaped engraving bit, quite easy to use the flat on the bit against the edge of a board but generally I just use the edge of the tool I am cutting with & set my x y position to the radius of the tool rather than zero.
Remember to set them as negative numbers though or the bit will move the wrong way :lol: :lol: :lol:
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Re: End mill question

Postby Bb0901 » Tue Jan 16, 2018 4:46 pm

Keith
Makes perfect sense. Never thought of it like that.
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Re: End mill question

Postby gkas » Tue Jan 16, 2018 5:13 pm

When I really need to be exact, I use this centering bit. I like it because you can use it in either a 1/4" or 1/2" chuck, and I don't chance screwing up a good V-Bit. https://www.amazon.com/gp/product/B003NE5ATG/ref=oh_aui_detailpage_o02_s03?ie=UTF8&psc=1
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