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Topics - wilfoude

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General Mach Discussion / Mach3 Pendant
« on: March 07, 2018, 09:30:43 AM »
Hello everyone,

Some time ago I installed a LPT2 card and a pendant in Mach3. The Usual stuff. All seemed to work fine.
Then I found out that some times (if not often) the wrong axis is moving when turning the MPG.
Using the Diagnostics window in Mach3, I found out that the pin status is correct and matches the setting of the X,Y,Z pendant knob.
I tried debouncing the X,Y,Z  LPT2 input contacts, but to no avail.
Has anyone any idea what causes this phenomenon and how I can solve it ?


General Mach Discussion / Tool Change
« on: March 04, 2018, 05:03:23 AM »
Whenever I move the spindle on my CNC-Router  to a convenient place to perform a tool change, it will return to the place where it came from in a  very slow speed.
In fact the feed speed that has last been been programmed before the tool change.
In case of drilling holes, that would in my case be 50 mm/min  (I always do the drilling very slow).
N.B. I use stanfard code fragments;
e.g. for a  tool change:
N1000 M06 D04 T04  (change to 4 mm in D04)
N1010 S3000 F3000
How do I make the spindle return more quickly ?


General Mach Discussion / Skipped code
« on: December 20, 2015, 02:48:37 PM »
Hello everyone,
I still have trouble finding the right way to post a question. I hope this is the correct way and someone is able to help.

I'm pressed to produce some instrument panels for gliders and a boat. Because many objects on the panels (circuit breakers, meters) are repeatedly used, I use subroutines for these items. This always worked fine. To my dismay I'm now confronted with the fact that many of the objects are skipped. They are drawn on the screen, but are not executed when running the program. I have had this before with 1 or 2 objects, but not so bad as now.
Is this a bug in Mach3 ?  Am I  the only one experiencing this phenomenon? I already had to find out the hard way that tool compensation does not work in subs. Maybe there are more pitfalls ?
N.B. Im sure the code is correct. I's simply the same line that is repeated with different coordinates.
Best regards,

General Mach Discussion / Skipped Parts
« on: February 04, 2013, 07:05:40 AM »
I have to produce a new aircraft (glider) panel again and have finished the design. Normally I first put a pencil in the tool holder to draw the panel. This is the final check before cutting the real panel. But I did not believe my eyes when I saw that Mach 3 was simply skipping drawing some of the partholes. They were clearly visible on the screen in the Toolpath display, but were not reproduced by the machine.
The skipped part was the second one out of a series of 4 identical parts.
How is this possible, What did I do wrong ? How can such a mismatch between Mach-3's own screendrawing and actual drawing develop ?
My machine (Portal CNC, 3*4 feet) normally works without the slightest problem.
I need urgent help in order to deliver the product in time.

Wilfried Oude Vrielink

G-Code, CAD, and CAM discussions / Mach3 and code G41/G42 in subroutines
« on: October 26, 2010, 02:46:45 PM »
I am a newbie to Mach3 and try the master it. I needed to make a number of 80 mm diameter holes in an instrument panel. So I made a subroutine with tool compensation to produce the holes. This worked fine for only the first hole, but the next holes are totally screwed up. It is as if in each consecutive call to the sub, the sub is partly switching back to the first hole. It works OK without the tool compensation. It also works when the code producing the hole is repeated for each and every hole. But that is bad practise, increasing code size.  Who can help me to make that sub working ?

Newbie Wilfried

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