Topics

1

VB and the development of wizards / How to zero Z after tool change in rotary setup

« on: May 03, 2021, 02:23:50 PM »

Hi.
Assuming that I already have a working auto tool zeroing macro in place for normal 3 axes setup
I still don't understand how to change and zero tool in rotary 4 axes setup. I was told that one has to zero X and Z to the rotary axis
but then, when stock is already loaded, half way through machining, this place might not physiclly available for the tool & spindle at that point.. How should I proceed?

2

General Mach Discussion / Ref xyz changes after program finish

« on: January 29, 2021, 06:56:23 PM »

Hi.

I'm doing a simple 2d contour.
My machine homes automatically. And my workspace is in positive X Y and negative Z.
I just moved the spindle to approximately x10 y500 and auto zeroed Z on top of the stock.
I ran the program (cutting out simple one letter) and it finished.
And just as it finished the refs went crazy: suddenly I'm at X-94  Y-742 Z116 which is also machine cords X+32 Y208 Z0.
Afterwards machine goes towards zero points but passes them and is hard stopped by home switches.
The end of the program (done in Fusion 360) looks as in the attached image.

Can you help me explain this behaviour, please?
PS. Similar thing happened when I put hold on feed (yellow button). That is when I broke a bit after resuming because it didn't retrace and just cut into stock plunged more than suggested for such a small bit (2mm).