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Inverse Z Axis on Sub Spindle


mknebel
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Good Afternoon,

I'm having an issue determining how to configure the Z axis on the sub spindle on Mastercam 2020 (Nakamura NTY3). 

For example: I am trying to perform a drilling operation using the lower right turret. To do so, I select the axis combination shown in the attached image. However, the shown axis combination cause the +Z direction to face into the part; which is inverse to our machine.

I have searched the forums and similar post have lead me to the attached code as being the solution. But, I do not know how to get to the code attached. Help on this situation would be fantastic. 

Thanks!

 

1.JPG

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20 minutes ago, mknebel said:

Bump

Yes you need to reconcile your post with how your machine is set up, or vise versa.

The best way is to work your way down the list and devise a toolpath or 2 to verify it is moving and posting code correctly.

I use the CNC Generic MT post and it is the:

  "Machining position/turret and spindle settings section" that I use for this.

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That code is "ASCII Text". It is inside your "Post Processor". This file typically has either a ".pst" or a ".mcpost" extension.

In Mastercam 2020, Go to File > Open in Editor.

That will launch File Open dialog box. Click the "Editor" button, and make sure "MASTERCAM" shows in the drop-down menu.

Browse to:

C:\Users\Public\Documents\Shared Mastercam 2020\lathe\Posts

Select your Nakamura Post file, and it will open in the editor.

Do a text search for 'use_only_tl'.

Set the 'use only top left' switch to 'no$'. If that switch is "on", the the Post only reads the "Top Left" Axis Combination settings, and applies these to all Axis Combinations. With that switch "off"(no$) the Post will then read a different group of 'scase' strings, based on which particular Axis Combination you are driving.

This means you can safely "reverse" the Z-Axis direction on the "Right Spindle" Axis Combinations (Upper/Right, and Lower/Right), without changing any output for the "Left Spindle" Axis Combos. It basically makes each Axis Combination "independent" from the others.

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1 hour ago, mknebel said:

Thanks for your help Colin. I opened the post file in editor and I searched for "use_only_tl" and nothing was found. 

Any further advice?

Let me know what you think!

Capture.JPG

I can see by the "header comments" in your Post, that this was a purchased Post from In-House Solutions. I would recommend emailing them, as they are typically very helpful in getting your Post setup and in working order.

[email protected] (Tech Support across Canada)

[email protected] (Post processor support outside of Canada)

My earlier advice was for the "Generic Fanuc 4X MT_Lathe Post", built as the "base 4-Axis, multi-spindle, multi-turret post" from CNC Software.

 

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