This is the metric dictionary if anyone wants to convert the pitch and
drill sizes to mm
# Metric Drills change inch drills to metric and your set
# tap size, pitch, 75% drill, 75% drill diameter, 50% drill for
steel, 50% dia
self.NF_TapM = {1:'#6-40,0.6350,M2.9,2.9,M3,3.0',
2:'#8-36,0.02778,#29,0.136,#26,0.147',
3:'#10-32,0.03125,#21,0.159,#18,0.169',
4:'#12-28,0.03571,#14,0.182,#10,0.1935',
5:'1/4-28,0.03571,#3,0.213,#1,0.228',
6:'5/16-24,0.04167,I,0.272,9/32,0.2812',
7:'3/8-24,0.4167,Q,0.332,S,0.348',
8:'7/16-20,0.0500,25/64,0.3906,13/32,0.4062',
9:'1/2-20,0.5000,29/64,0.4531,15/32,0.4688',
10:'9/16-18,0.5556,33/64,0.5156,17/32,0.5312',
11:'5/8-18,0.5556,37/64,0.5781,19/32,0.5938'}
self.NC_TapM = {1:'#6-32,0.7937,M2.7,2.7,M2.9,2.9',
2:'#8-32,0.03125,#29,0.136,#27,0.144',
3:'#10-24,0.04167,#25,0.1495,#20,0.161',
4:'#12-24,0.04167,#16,0.177,#12,0.189',
5:'1/4-20,0.05000,#7,0.201,7/32,0.2188',
6:'5/16-18,0.05556,F,0.257,J,0.277',
7:'3/8-16,0.06250,5/16,0.3125,Q,0.332',
8:'7/16-14,0.07143,U,0.368,25/64,0.3906',
9:'1/2-13,0.07692,27/64,0.4219,29/64,0.4531',
10:'9/16-12,0.08333,31/64,0.4844,33/64,0.5156',
11:'5/8-11,0.09091,17/32,0.5312,9/16,0.5625'}
self.M_TapM = {1:'M3-0.5,0.5000,M2.5,2.5,M2.7,2.7',
2:'M4-0.7,0.02756,#30,0.1285,#28,0.1405',
3:'M5-0.8,0.03150,#19,0.166,#16,0.177',
4:'M6-1.0,0.03937,#8,0.199,#4,0.209',
5:'M8-1.25,0.04921,H,0.266,J,0.277',
6:'M10-1.5,0.05906,R,0.339,T,0.358',
7:'M12-1.75,0.06890,13/32,0.4062,27/64,0.4219',
8:'M14-2.0,0.07874,15/32,0.4688,1/2,0.500',
9:'M16-2.0,0.07874,35/64,0.5469,37/64,0.5781'}
On 8/13/2013 9:03 AM, Dave wrote:
> Very nice John..
>
> Dave Cole
>
> On 8/13/2013 9:32 AM, John Thornton wrote:
>> I know most of you guys on the mailing list don't visit the forum so
>> here is a link to a G code generator for drilling and tapping holes on a
>> mill. I wrote this mainly because we don't have a tapping cycle and if I
>> forgot the pre-position move then you get a really neat show as your tap
>> traverses from where it is to the bottom of the hole. Anyone ever seen a
>> tapped slot?
>>
>> This saves me time when I need to tap some holes in a part and helps
>> prevent errors.
>>
>> http://linuxcnc.org/index.php/english/forum/31-cad-cam/26859-mill-tapping-g-code-generator
>>
>> JT
>>
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>>
>
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> It's a free troubleshooting tool designed for production.
> Get down to code-level detail for bottlenecks, with <2% overhead.
> Download for free and get started troubleshooting in minutes.
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It's a free troubleshooting tool designed for production.
Get down to code-level detail for bottlenecks, with <2% overhead.
Download for free and get started troubleshooting in minutes.
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