And a note:

In relative mode the extruders (defined as tools) work perfectly and correctly (this is standart printer mode). However, I need the absolute one and I think - there was no issue because of no use of this mode.

@dc42 Hi David, I saw a comment that you are ready to help with integrating the DUET 3D to the other maschine like Pick and Place. My vision is to sell this maschine like a Prusa printer. However, I need to solve how to use two nozzles - now only one is working. Thanks for any help.

Thanks @DROFTARTS for your help and ideas.

To point 1. - yes this is possible and works well but not possible to use for my Pick and Place maschine. I cannot change the position of the other tool during process.

to point 2. - yes it works well for axis X, Y ..and so on... but not for Extruders axis defined as tools. It is desired only for tool position, not for the tool itsefl (if I understand it well ...but I tried many hours and still no reaction to G60) So I can move the whole maschine to the saved position, but tool remains the same.

To point 3. is the same problem as the point 2. ...it is possible to works with axis X etc. ...but tools are problems.

To problem of positioning: I want to add that:

1. At the begining - tool 0 and tool 1 is at position 0 degrees
2. I set tool 0 to 90 degrees (it moves correctly from 0->90 degrees)
3. Switches to tool 1 and want to move from 0 to 20 degrees
4. PROBLEM: tool 1 moves -70 degrees instead of +20 degrees because it inherites the position from tool 0.
   ADDED:
5. It inherites the position from tool 0 ALWAYS and badly work with + and -

Example: T0 is at the position 10000 (now swithing to T1)
T1 G1 E1000 set T1 to -9000 or 11000 - so the absolute coordinates now works as absolute difference between tools

Only when the other tool is at the position 0 - then the other tool is working correctly.

I am starting this topic to find out if there is someone else who uses the duet 3D for PaP maschine to share information etc. And for solving problems together.

I and my friend build the PaP maschine on our own based on the inspirations on the web.

So is anyone here who uses duet 3D not for the printer but PaP maschine?

I am using DUET 3D for my Pick and Place maschine. I have two nozzles set as extruders - Tool 0 and Tool 1 - everything works fine with relative coordinates (3D printers). However, I need to work in absolute coordinates and it works badly after switching from tool 0 to tool 1 and vice versa.

Problem: 1) At the begining - tool 0 and tool 1 is at position 0 degrees
2) I set tool 0 to 90 degrees (it moves correctly from 0->90 degrees)
3) Switches to tool 1 and want to move from 0 to 20 degrees
4) PROBLEM: tool 1 moves -70 degrees instead of +20 degrees because it inherites the position from tool 0.

Hi everybody, I need help. I am trying to implement coolstep feature (I have DUET 3 and firmware 3.0). I am sending a command e.g. M915 X T32904 (I tried little/big - endian) and there is no change in log - still coolstep is 0 - and the motor sound is also the proof - my parameter S (stallguard) is well set - about 300 with no load (bigger stepper is set for 600 with no load). My answer is - is it impelentet for TMC516x and duet 3? with firmware 3.0? Because - sending a command e.g. M915 X T99505454 - return no error etc. and after many tries (combination from tmc datasheet) - there is still no change and coolstep is in the log 0. Please @dc42 , could you provide en example of setting a coolstep command? Thanks for any help