Coding for Tapmatic CST NCR15 tapping head?

[J Coulston]

Does anyone use Tapmatic tapping heads? I am trying to figure out how to code for a Tapmatic CST NCR15 tapping head. I need to create a sub program that changes the feed rate in to 98% and the feed rate out to 102%. I tried to use a G85 cycle, it works with my larger tapping heads, but it strips the threads on smaller holes.

 

On my old CAM system the only editing I had to do was cut the subs from the body of the program and paste them to the end of the file. The old system would check the Z height and compare it to the previous hole to see if a new sub was needed to machine new depths. The sub was named by the tool number T06 and the sub number was just incremental 01 02 03 ect. So it became O0601, O0602 O0603 ect. .

 

Ridged tapping is not fast enough for my application.

 

Sample code I am looking for.

 

N1 (T6 = 0.065 DIA. TAP 1-64 TAP NCR15)

N2 G00 G40 G49 G80 G17 G90

N3 G00 G91 Z0 G30 M19

N4 T6

N5 M06

N6 G90 G54 X-0.055 Y-0.1 M03 S3100 T6

N7 G43 H6 Z3.75 M08

N8 M98 P0601

N9 X-0.055 Y-0.652

N10 M98 P0601

N11 X-0.055 Y-1.205

N12 M98 P0601

N13 G80 G00 Z4.75

N14 G90 G55 X0.055 Y-0.1 M03 S3100 T6

N15 G43 H6 Z3.75 M08

N16 X0.055 Y-0.1

N17 M98 P0602

N18 X0.055 Y-0.652

N19 M98 P0602

N20 X0.055 Y-1.205

N21 M98 P0602

N22 G00 G80 M09

N23 G28 G91 Z0 Y0 M05

N24 M30

O0601 (HXO1002 BOTTOM.txt)

(T6 = 0.065 DIA. TAP 1-64 TAP NCR15)

G00 Z3.625

G01 Z3.185 F47.5

G01 Z3.625 F49.4

G00 Z3.75

M99

O0602 (HXO1002 BOTTOM.txt)

(T6 = 0.065 DIA. TAP 1-64 TAP NCR15)

G00 Z3.125

G01 Z2.685 F47.5

G01 Z3.125 F49.4

G00 Z3.75

M99

%

 

Thanks in advance for any ideas, suggestions, or comments.

 

John

[Surface]

I suppose you can feed in at 98% and out at 102%, but I have always fed both ways at 95% with good success. My post spits it out that way by:

 

ptapmatic # calculate tapmatic feedrate

tpi = peck1

tapmaticfr = (ss/tpi)*.95

*tapmaticfr

 

One aspect of your code which may be causing some trouble is the omition of M49, which on my machine, disables the feed and rpm over-ride pots.