Weird Z axes movement from - to +
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@jay_s_uk Ahh I see. Changed the homez but still does not solve my problem. As said I can move G1 Z-30 or Z-40 etc. This works fine. But every time I do a move in the opposite direction It just go to endstop no matter what I am typing
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Theres nothing I can see what would cause that.
Are you using the ooznest DWC version?
And are you just using the jog buttons to make the movements? -
@jay_s_uk I am typing in the g-code command. If using the buttons it work fine.
Need to check the other question. Will Come back later. -
What are you typing in?
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@jay_s_uk just in the command line in Web duet control. But I have the feeling that it this also provoke an error in offset probing.
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I meant what commands are you typing in
Just purely G1 Z5? -
@jay_s_uk Yes. Purely G1 Z-10 and then another one eg. G1 Z5
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Very strange on why its going back to home. I'm afraid I've not seen this happen on the CNC i've used with RRF. Maybe someone else can chip in?
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@MortenMod Are you confusing relative and absolute positioning? The
G90in your config.g sets 'Absolute coordinates'. So, assuming you are starting at Z110 after homing, you send G1 Z-30, it moves to position Z-30mm (or at least tries to, but it will generally stop at Z0). But it's moving from point Z110 to point Z-30, ie 140mm, not moving -30mm. If you sent G1 Z-30 again, it would not move, because it is already at Z-30. So when you send G1 Z5, it moves to Z5, which is 35mm away from Z=-30.If you want G1 Z-30 to move down 30mm from it's current position (say Z110 after homing), you need to send
G91first, which switches to relative coordinates; ie if you send G91, G1 Z-30, G1 Z-30, it will move down 30 (to Z80), then another 30mm (to Z50).(I'm not sure I've explained this very well, but hopefully you get the idea!)
Ian
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@droftarts Aahhhhhh
Thanks a lot. It helped!
