Setting Z Axis home on 2D cutting
02 Feb 2014 04:03 #43409
by Parksie
Setting Z Axis home on 2D cutting was created by Parksie
Hi,
I have done some 3d cutting with linuxCnc and it has been great, however when I try 2 cutting and halftone cutting Im not really sure where to home to the Z axis. If I home it on the top of the material it just moves around but never cuts into the material.
However if I set the Z to the bottom of the material it seems to cut too much. When I generate my g code, I set my thickness to the material width.
Any suggestions would be great.
I have been using the plans from this site www.dxfplans.com/products/category/free/ and also DXF Halftone 2.1 application to generate halftone gcode.
Thanks in advance.
Note: I have attached a tap file generated by halftone Dxf 2.1 as an example.
Rhys
I have done some 3d cutting with linuxCnc and it has been great, however when I try 2 cutting and halftone cutting Im not really sure where to home to the Z axis. If I home it on the top of the material it just moves around but never cuts into the material.
However if I set the Z to the bottom of the material it seems to cut too much. When I generate my g code, I set my thickness to the material width.
Any suggestions would be great.
I have been using the plans from this site www.dxfplans.com/products/category/free/ and also DXF Halftone 2.1 application to generate halftone gcode.
Thanks in advance.
Note: I have attached a tap file generated by halftone Dxf 2.1 as an example.
Rhys
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02 Feb 2014 15:55 - 02 Feb 2014 17:22 #43423
by ArcEye
Replied by ArcEye on topic Setting Z Axis home on 2D cutting
Hi
There is nothing attached, you probably need to change the extension to .txt
From what you are saying I can only imagine you are confusing homing and touching off.
You can home anywhere, normally somewhere out of the way of vices etc for toolchanges.
You touch off to the workpiece at a place where Z equals 0, ie the top surface and conventionally with X0and Y0 at the bottom left hand corner of the workpiece (but that varies depending on the machine)
All cutting moves in your code should have Z as a negative number
regards
There is nothing attached, you probably need to change the extension to .txt
From what you are saying I can only imagine you are confusing homing and touching off.
You can home anywhere, normally somewhere out of the way of vices etc for toolchanges.
You touch off to the workpiece at a place where Z equals 0, ie the top surface and conventionally with X0and Y0 at the bottom left hand corner of the workpiece (but that varies depending on the machine)
All cutting moves in your code should have Z as a negative number
regards
Last edit: 02 Feb 2014 17:22 by ArcEye.
The following user(s) said Thank You: Parksie
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05 Feb 2014 09:33 #43564
by Parksie
Replied by Parksie on topic Setting Z Axis home on 2D cutting
Greta stuff. Thanks for the response. I understand now.
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