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Brian L

Post by Brian L »

Don,

I didn’t save the file after I sent the whole thing to Les…. I do have the tap file, I’ll attach to this email.


Basically I had the top of my part at Z0, then a clearance hole to .615 deep or so, then tap thru the part that is 1.250 thick. Because I use a tension and compression holder and have to reverse my spindle, I programmed it just .750 deep. As you will see in the code, it came out way high in the Z, I’ll cut and paste the code below. Z started at 1.2894 and fed to Z.680, where it came up with those, I have no idea, then on pull out we have two more odd Z depths. My mill also doesn’t recognize M49 and G95, so the feedrate has to be IPM, not IPR, easy enough to recalculate.
Brian Lamb
blamb11@cox.net (blamb11@cox.net)
N0010 (Filename: Tap test 1.tap)
N0020 (Post processor: Mach3-tap-dwell.scpost)
N0030 (Date:06/06/2014 Time:18:54:07)
N0040 G20 (Units: Inches)
N0050 G40 G90 G91.1
N0060 F1
N0070 (Part: Indicator Holder Rev B op10)
N0080 (Operation: Tap, CENTER, T37: 1/4-20 T&C head, 0.75 inch Deep)
N0090 S1000 G00 X-2 Y-6
N0100 (finish allowance: 0 inch)
N0110 (1/4-20 T&C head)
N0120 T37 M06 G43 H37
N0130 M07 (Mist coolant on)
N0140 S1000 M03
N0150 M49
N0160 G95
N0170 G00 X0.4001 Y-1.7001
N0180 Z1.2894
N0190 G01 Z0.680 F0.05
N0200 G04 P0.5
N0210 Z1.469
N0220 G00 Z1.3500
N0230 M48
N0240 G94
N0250 X20.0000 Y3.0000
N0260 M09 (Coolant off)
N0270 M05
N0280 M05 M30


And the actual tap file:








On Jun 8, 2014, at 5:45 PM, Don@Campbell-Gemstones.com (Don@Campbell-Gemstones.com) [sheetcam] <sheetcam@yahoogroups.com (sheetcam@yahoogroups.com)> wrote:
Brian, I've been waiting to see what your Z problems were the post fix Les provided. I'm about a day away from having my mill ready to test out the code and am wondering what I should be looking out for.Don

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