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Messages - Graham Waterworth

2571
General Mach Discussion / Re: Exact Stop G64
« on: May 10, 2006, 04:56:13 PM »
Hi,

it sounds a bit like lack of power to the motors, how big is your power supply?

Graham.

2572
General Mach Discussion / Re: Exact Stop G64
« on: May 08, 2006, 02:36:41 AM »
Is this on a lathe or a mill,

Graham.

2573
Its here,
Graham.

2574
Looking good so far,  don't forget most lathes are programmed in diameter mode.

Another winner in the making I think.

Graham.
 

2575
Hi,

there is a G31 skip cycle, this is triggered by a sensor (usually a probe) but could be used to trigger a second movement.

G31 X100. F10. (move to X100. or until trigger active)
G01 X100. Z25. (move both axis)

Graham.

2576
General Mach Discussion / Re: Tool Changes
« on: April 30, 2006, 12:21:06 PM »
Why not set them with a vernier caliper from the end of the spindle, NOT the colllet.

Graham.

2577
General Mach Discussion / Re: DC Servo run away
« on: April 30, 2006, 05:19:53 AM »
Hi,

This sounds a bit like running out of numbers e.g. 65536+1 =0

Graham.

2578
General Mach Discussion / Re: Home switch position
« on: April 30, 2006, 05:11:12 AM »
Hi Dave,

You can have the home position where you want, one of my mills at work has the home position on the X and Y table centre line.

The home position is only really a starting point for the control, so it knows where to start counting from.

Graham.

2579
Hi,

If I was doing this my code would look like this

G00 X.125 Y0.4           (MOVE TO FIRST HOLE)
Z1.2                            (MOVE TO SAFE RAPID)
G81 G98 Z-1.1 R0.1 F6. (START DRILL CYCLE)
X3.575                        (MOVE TO SECOND HOLE)
G80                             (CANCEL CYCLE)
G91 G28 Z0                  (GO TO HOME IN Z)
G28 X0 Y0                    (GO TO HOME IN X AND Y)
M30                             (END)

Not sure why it skips lines but the code is very odd. 

Graham.

G-Code:

N28625 X0.125 Y0.4 F6.0                        (FIRST HOLE POS)
N28630 Z0.1                                          (SHOULD BE MORE THAN .1  TO BE SAFE)
N28635 G81 X0.125 Y0.4 Z-1.1 R0.1 F6.0  (START DRILL CYCLE)
N28640 G80                                           (NOT NEEDED)
N28645 Z1.2                                          (NOT NEEDED)
N28650 X3.575                                       (NEXT HOLE POS)
N28655 Z0.1                                           (NOT NEEDED)
N28660 G81 X3.575 Y0.4 Z-1.1 R0.1 F6.0   (NOT NEEDED)
N28665 G80                                            (END CYCLE)
N28670 Z1.2                                           (NOT NEEDED)
N28675 G91 Z0 M09                                (ONLY TURNS COOLANT OFF, NO MOVEMENT)
N28680 G40 G49 G17 G80 G61 G70 G90    (NORMALLY AT THE START OF A PROGRAM)
N28685 M91001                                      (? LOOKS LIKE RUBBISH)
N28690 M30                                           (END)

2580
General Mach Discussion / Re: Has Mach got user timers
« on: April 30, 2006, 04:32:55 AM »
Hi,

thanks for the ideas,  I still think a couple of timers built into mach would be a good idea, not just for lube pumps.

Graham