Thanks and questions ;)

[gdo35]

Hi all !

First thanks to all developpers for that amazing Path module !

Before my questions, here is the expected result of my first milling :

DSC_0022.png (487.47 KiB) Viewed 1602 times

It is the base of my robot.

I used the very useful sliptonic dogbone dressup which worked fine :
http://www.youtube.com/watch?v=Ix_HfaL0TxU

Just doing a profile from face was so easy... Good job !

path.png (72.14 KiB) Viewed 1602 times

But I have 2 questions :

• How can I make a profile for a XZ or YZ part ?
• How can I set an offset to avoid my CNC to start from 10mm to 0mm but to start from 0mm to -10mm on Z axis ?

Thanks,
gdo

OS: Ubuntu 16.10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.10101 (Git)
Build type: None
Branch: master
Hash: 99fa203f323927b0dd027420d4421b577b7420c3
Python version: 2.7.12+
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17

[chrisb]

Thank you for sharing, I always like to see real things coming out at the end.

How can I make a profile for a XZ or YZ part ?

Currently I think you have to make a clone and turn it by 90°

How can I set an offset to avoid my CNC to start from 10mm to 0mm but to start from 0mm to -10mm on Z axis ?

You should not work with your machine's absolute coordinates but with workpiece coordinates. If your machine controller cannot handle the latter (which I hardly can imagine) you can adapt the post processor.

[triplus]

Nice to see such projects! Thanks for sharing.

[gdo35]

Currently I think you have to make a clone and turn it by 90°

Not very practical but not too difficult either.

You should not work with your machine's absolute coordinates but with workpiece coordinates. If your machine controller cannot handle the latter (which I hardly can imagine) you can adapt the post processor.

I work with absolute coordinates in linuxcnc... I will check deeper into docs to find if I can work with relative coordinates...

Thanks,
gdo

[chrisb]

I work with absolute coordinates in linuxcnc... I will check deeper into docs to find if I can work with relative coordinates...

I am sure you can, we had this here recently.

[gdo35]

Thanks for your reply.

This topic is too general and I will open a more specific one on each problem.

chrisb, thx for help, I found some clues with G10 L2/L20 instructions. I have to test this.

gdo

[chrisb]

Thanks for your reply.

This topic is too general and I will open a more specific one on each problem.

chrisb, thx for help, I found some clues with G10 L2/L20 instructions. I have to test this.

gdo

You're welcome, I think it is rather the G54 - G59 series of GCodes where you can define different coordinate systems