difference between machine coordinate systems and CAD software

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25 Jul 2024 21:44 - 25 Jul 2024 21:50 #306035 by greg23_78
I have a problem with the system coordinates, I have represented the machine axes in blue (when I click on the + button in axis and on each axis).
and the axes I need to orientate on fusion 360 so that the cnc machines in the right place (in red).

would the problem come from fusion or axis?

I have another cnc with another control card (edingcnc) and I don't have this problem.
 

 
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Last edit: 25 Jul 2024 21:50 by greg23_78.

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26 Jul 2024 00:11 #306044 by rodw
I think your X axis needs to be rotated in F360 so its the same direction of the machine movement.

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26 Jul 2024 01:07 #306049 by tommylight
Your fist picture = you are looking at the part from behind, any particular reason for it?
Moving table and moving head are two different types of machines, despite being the same functionally, but very different when looking at them and using them, i have a feeling you are mixing these.

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26 Jul 2024 05:33 #306056 by Aciera
Machine coordinates are always defined with respect to tool movement on the workpiece regardless if it's the spindle or the workpiece that moves. So presuming that the blue coordinate system represents the tool movement on the workpiece then that is a common setup for a mill. Having the X axis pointing to the left in the CAD system is not wrong (you just have to rotate the part on the machine table) but a bit unusual.

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26 Jul 2024 13:20 - 26 Jul 2024 13:24 #306086 by scotth
With the other control does the axis jog the same direction? X+ = X+ travel on both machines.
If the jog is correct is the Post the same?
Last edit: 26 Jul 2024 13:24 by scotth.

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18 Aug 2024 18:40 #308101 by greg23_78
it's actually my mistake, I didn't remember that the Machine coordinate was related to the spindle displacement (I'm used to it with cnc gantry).
What would be the quickest and easiest way to correct my mistake?

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19 Aug 2024 04:24 - 19 Aug 2024 04:26 #308113 by scotth
With no hardware info, this is just a guess. If you have encoder feedback, swap A and B to reverse count.
For steppers, invert direction.

Be ready with E-STOP when you test, things can go very wrong quickly.
Last edit: 19 Aug 2024 04:26 by scotth.

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