it.
On Sun, Jan 16, 2011 at 3:16 PM, Rick Sparber <rgsparber@aol.com> wrote:
>
>
> I have taken a rather pragmatic approach to speeds on my lathe, drill
> press,
> and mill. I have a small lookup table for steel and another for aluminum
> for
> each machine. Then, for each belt position, I list the ideal diameter. In
> each table, it lists diameter in the first column and belt position in the
> second column.
>
> I really don't care what the RPMs must be for a given diameter, just what
> belt positions to use. Makes my life a bit simpler. The generation of the
> tables were done using Excel so I didn't even have to think very much.
>
> Rick
>
>
> -----Original Message-----
> From: gingery_machines@yahoogroups.com<gingery_machines%40yahoogroups.com>
> [mailto:gingery_machines@yahoogroups.com<gingery_machines%40yahoogroups.com>]
> On Behalf Of Gordon Haag
> Sent: Sunday, January 16, 2011 3:04 PM
> To: gingery_machines@yahoogroups.com <gingery_machines%40yahoogroups.com>
> Subject: [gingery_machines] New calculator
>
> I uploaded a file containing a calculator I wrote in python. It calculates
> the correct rpm for a lathe spindle given diameter and material or surface
> speed. Diameter is in inches, speed is in feet per minute.
>
> It's under 'Mr.Meker's Calculator'. If you want to use it, you have to
> download the .zip file. Then unzip to its own folder. Inside the folder you
> will find a shortcut. Copy that to you desktop.
>
> Right now, the calculator supports aluminum, mild steel, and brass, and
> carbide and hss for cutters. If you want to use it for something else, find
> out what the correct speed in feet per minute is and enter that under the
> 'custom' option in the material selection section. If you find any errors
> or
> would like more materials added, reply to this post.
>
> I'm not sure if this will work on anything but windows 7, because that is
> the only thing I have tested it on. Go ahead and try it though. I want to
> know!
>
> Thank you,
>
> Mr.Meker
>
>
>
[Non-text portions of this message have been removed]
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