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General Mach Discussion / Help - modifying circular pocket wizard generated G-Code (spiral)

« on: April 08, 2009, 02:24:59 PM »

Hi, everyone

I have code generated by the circular pocket wizard.  The code is to dray a spiral (attached below).  I am faced with two problem;  1st
I need the router to go from outside to inside - the code generated by the wizard is in to out.  Can you help me configure the wizard or help modify the code so that the distance between the spirals is maintained ..
2nd
I need to modify the code so that the inner most spiral does one more turn without affecting the other spirals (I need to fill the center with the fluid I am dispensing)

Thank you in advance for your help.  The code is below (I use a valve to dispense fluid rather than a router - the A0 is for the valve that dispenses the liquid - opens-closes:

%
(Pocket Size = +13.0 - GIVES 13 IN DIAM CIRCLE)
( % Step Over = 30)
(Ramp Dis = + 0.5, Feedrate = +500)
(Tool Diam = +4.0)
(sTEP DEPTH = ?)

(GIVES EXCELLENT RESULT AT 8 - 10 PSI)

G0 G49 G40  G17 G80 G50 G90
G0 A0
X0 Y0
G1 A0.4
G3 Y0 X1.2 R0.6 A.15 F2000
Y0 X-1.2 R1.2
Y0 X2.4 R1.8
Y0 X-2.4 R2.4
Y0 X3.6 R3
Y0 X-3.6 R3.6
Y0 X4.8 R4.2
Y0 X-4.8 R4.8
Y0 X6 R5.4
Y0 X-6 R6 A.15 F1400
X6 Y0 R6 A.02
G0 A0
M30
%

2

General Mach Discussion / New Bee - Help! Drawing spiral - getting oval instead of circle!

« on: March 19, 2009, 12:30:23 PM »

Hi, I am a new bee.  If I posted this post in the wrong place, please let me know and direct me ...

I was attempting to draw a spiral using the MACH3 software (latest version) and two G201 stepper motor driver  with G901 multipliers.

When the cnc draws the spiral, at low speed, I get even spirals.  When the speed (velocity/acceleration) changes, the spiral becomes flat-edged at the X and Y axis because it all of a sudden jurks the arm ... When I repeat the same run again, it repeates the same pattern exactly - with the error (so, I am thinking it is not missing a step.  Is that assumption correct?)

Pleas ehelp.

Dan