[frankg521]

Hi Guys um using mastercam x with Mach3 everything is good except i get these strange lead in my Gcode can anyone help thanks in advance

[frankg521]

How come i post threads and i get no reply

[mark c]

What do you not like about the G code?
I do see that the Z commands are all z0
I don't know MCX very well, but I'll try to help.

[gar]

070814-2131 EST USA

frankg521:

Your code does not look good. Going to Z0 first, then a rapid in the X-Y plane looks dangerous.

There should be considerable initialization before your first line of code. Mastercam post is a problem or you have not supplied Mastercam enough information.I would expect a % at the beginning followed by an O-number, and at the end M30 and the ending %.

.

[Switcher]

I didn't see anything other than an extra "G00"?

Whats strange about the lead in?

G00

G00

Z0.0

X8.4372y7.7675

G01

Z0.0 F10.0

X7.9444y8.7114
X6.9756y9.647
X6.015y10.1065
X4.1105y10.0733
X3.1666y9.5805
X2.231y8.6117
X1.7715y7.6511
X1.3203y6.2145
X1.3619y3.8339
X1.8629y2.4138
X2.3557y1.4699
X3.3245y0.5343
X4.2851y0.0748
X6.1895y0.108
X7.1335y0.6008
X8.0691y1.5696
X8.5286y2.5302
X8.5036y3.9585

G00

Z0.0

X6.123y3.917

G01

Z0.0 F10.0

X8.5036y3.9585

G00

Z0.0

[frankg521]

I realy do like Gcode ...switcher checkout this red line in mach see attched pic

[Switcher]

I also posted on your other thread.

http://www.cnczone.com/forums/showthread.php?t=41996

Can you post the octagon file?

.

[frankg521]

yes .. i want the z to plunge were i put the gantry but it follows the red leasdin and then cuts i dont know were to put the stock

[Switcher]

That looks like a bunch of extra code, what type of cnc machine are you running?

The code shows an "A-axis", are you just running a 3-axis mill (XYZ)?

.

[frankg521]

Yes it is a bunch extra code its a home built router everything works good eccept for this lead in the gantry moves diagnaly then starts cutting it must be the post like gar sead now what to do about it yes 3 axis

[Switcher]

I deleted a bunch of useless code, double check tool comp. I might have got caried away.

RUN AT YOUR OWN RISK




%
N1 G00 G17 G90
N2 Z5.0
N3 X0.0 Y0.0
N4 X-12.4295 Y-3.5376
N5 G01
N6 G91
N7 Z-0.25 F6.0
N8 X-8.5195 Y3.2347
N9 X-0.686
N10 X3.2376 Y-3.5376
N11 X-0.6724 Y-10.3256
N12 X-8.506
N13 X-12.4295 Y-3.5533
N14 G90
N15 G00
N16 Z5.0
N17 X0.0 Y0.0
N18 M30
%

[Switcher]

The "Z" clearance is +5

The "Z" infeed is -0.25

Adjust as needed.

.

[Geof]

I deleted a bunch of useless code, double check tool comp. I might have got caried away.

Considering that an octagon is eight sided and your screen shot showed a hexagon with six sides you must have got so carried away you deleted two whole sides.

[Switcher]

.

[Switcher]

The file is a Hexagon.

.

[ger21]

Isn't that red line just the machine moving from where it's currently at to the first position in your code?

[Switcher]

Isn't that red line just the machine moving from where it's currently at to the first position in your code?

The control (in the screenshot) shows the machine zero out (cross hair).

I think the G92 was the problem for the starting point.


.

[frankg521]

Isn't that red line just the machine moving from where it's currently at to the first position in your code?

Hi ger21 if i run the code the machine moves from were is is to the start of the red line
Frank

[Geof]

Hi ger21 if i run the code the machine moves from were is is to the start of the red line
Frank

Like Switcher comments the G92 line shifts everything. This command moves your Work Zero to X-10. Y-10. Z-10.

I loaded this code into one of my big machines and ran the graphics simulation. It generates a hexagon, not an octagon.

The starting point is: G0 G90 X-12.4295 Y-3.5376

Because the G92 has set a Work Zero shift in machine coordinates this is;
X-22.4295 Y-13.5376 Z-10.

If you look at it like a clock face this is at the 9 position and the moves go to positions 11, 1, 3, 5 and 7 which is the end.

Why do you have the G92 command?

[frankg521]

Why do you have the G92 command? G92 was generated by Mastercamx how do i get rid of it