Hey Jeremy,

Drop by any time (well call, text or e-mail me to make sure I'm home 
first) I love to have visitors here in my little corner of Swamp East 
Missouri.

JT

On 7/21/2014 1:13 PM, jeremy youngs wrote:
> well john !!!
> the truth is I am playing hooky , packing stuff up and dont currently know
> the whereabouts of said item :(
> i think it may be here at the house , rather it is packed already i do not
> know , if it is here i will answer your question if it is already packed it
> will be after the first when we get back to the show me state , in which
> case i may put it in my vehicle and just go pay you a visit , if it is in
> the shop at moms it will be a few days and i will get you that information
> for now thats what i can do
>
>
>
> jeremy youngs
>
>
> On Mon, Jul 21, 2014 at 1:31 PM, John Thornton <bjt...@gmail.com> wrote:
>
>> Jeremy,
>>
>> The photo is rather small, is the calculator small with tiny print? My
>> eyes like big print.
>>
>> Just for S&G what does your calculator say for drilling a 1/2" hole in
>> aluminum with a 135° split point?
>>
>> JT
>>
>> On 7/21/2014 12:18 PM, jeremy youngs wrote:
>>> john this is the standby reference that i start with it is a really good
>>> reference and the ONE that i trust most , well worth the 20 bucks.
>>>
>> http://www.ebay.com/itm/Machinists-Speed-Feed-Calculator-CNC-Mill-Tooling-/230704129486?pt=LH_DefaultDomain_0&hash=item35b709a5ce
>>>
>>>
>>> jeremy youngs
>>>
>>>
>>> On Mon, Jul 21, 2014 at 12:13 PM, John Thornton <bjt...@gmail.com>
>> wrote:
>>>> I'm writing a little Python program to give me RPM and IPM for twist
>>>> drills. I have found some conflicting and some very old charts for feed
>>>> per revolution like this one:
>>>>
>>>>
>>>>
>> http://www.free-ed.net/sweethaven/IndustrialTech/machinist01/pics/ch04.h1.gif
>>>> I use mostly screw machine drills with 135° split point in my mill and
>>>> lathe. Does anyone have a better chart or a formula for feed per rev?
>>>>
>>>> The little program is here:
>>>>
>>>> http://gnipsel.com/files/sfc/
>>>>
>>>> I still need to add an RPM limit and a zillion other things...
>>>>
>>>> JT
>>>>
>>>>
>>>>
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> ------------------------------------------------------------------------------
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> search up to 200,000 lines of code with a free copy of Black Duck
> Code Sight - the same software that powers the world's largest code
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> https://lists.sourceforge.net/lists/listinfo/emc-users


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search up to 200,000 lines of code with a free copy of Black Duck
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search on Ohloh, the Black Duck Open Hub! Try it now.
http://p.sf.net/sfu/bds
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