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mbl_busse
287 Views, 2 Replies

Post edit needed: Z-Home before b-axis movement

Hey guys,

 

I hijacked this post -> https://forums.autodesk.com/t5/hsm-post-processor-forum/make-machine-go-to-home-safe-position-for-a-... <- in the HSM-Forum but no one really seems to know a solution, so I thougt I'd try my luck here in the Fusion-Forum.

 

The Problem is the following:

Imagine having a Machine with B/C axis in head/table config. Seems very common for me.

Now you switch your working plane to something like b+90, to work from one of the sides. You have done your work and want to switch to b0 again, but your head is somewhere near the table. If you turn the b-axis now, chances are very high that at least the tool, if not the spindle, will crash with the table.

 
@Laurens-3DTechDrawhat a solution in the thread I mentioned above, but this does not work with my kinematic, since I have to do a prepositioning with tcp.
 
Has anyone any idea on how to implement this into a postprocessor? I need to output this for a Heidenhain control...
 any help would be much appreciated, cause this is really buggin me...
 
 
 
 
Thanks in advance and greetings from germany :slightly_smiling_face:

Hi Man,

 

Sorry I didn't respond to the other thread.

I'm curious why you "need" TCP for the pre-positioning.

In essence, you can always move to the clearance plane under the current workplane/angle and then always Z up?

Laurens Wijnschenk
3DTechDraw

AutoDesk CAM user & Post editor.
René for Legend.


Hey Laurens,

 

thank you for your reply. You're absolutely right... I havne't thought about just using M140 after I've positioned the head to ensure I'm 'above' the part.

It now works perfekt with your makro and tcpm deactivated, just added M140 after every tilting.

 

Thank you very much and have a nice day!