USE 3 independent Z axis to leveling the bed

fcwilt

@tangougou said in USE 3 independent Z axis to leveling the bed:

leadshine CL57

OK I understand.

Have you considered putting all three Z steppers on the Duet WiFi outputs (Z, E0 E1), thus allowing the use of the same parameters for all three steppers.

Then you could put the extruder stepper on the CL57.

Frederick

tangougou

@fcwilt yes i already do that and it works very well。 but my bmg Extruder only support 42 motors the cl57 and 57 motors can't be work. it seems that my 57motor is unusefull。

dc42

@tangougou said in USE 3 independent Z axis to leveling the bed:

it seems that use two Extruders shoud use ":"to set another parameter。SO i think have three Z axis should use Znn:nn:nn to set the second Z axis and the third Zaxis...

The Z parameters of the M350 and M92 commands take only a single value, which will be applied to all Z motors. So all 3 drivers/motors should be of the same type, or (in the case of external drivers) at least have the same steps/mm.

fcwilt

@tangougou said in USE 3 independent Z axis to leveling the bed:

@fcwilt yes i already do that and it works very well。 but my bmg Extruder only support 42 motors the cl57 and 57 motors can't be work. it seems that my 57motor is unusefull。

What is the exact part number of your driver.

I was looking at a StepperOnLine CL57T which works with NEMA 17, 23 and 24 steppers.

Perhaps yours can be set to work with your stepper?

Frederick

tangougou

@dc42 thanks for reply ,next i will change the cl 57's steps/mm.

tangougou

@dc42 By the way , The Z parameters of the M566 M203 M201 M906 commands whether take only a single value? Thanks a lot.

fcwilt

@tangougou

Hi,

So you got it working?

What was the final setup as to how you drove the three Z axes?

Frederick

tangougou

@fcwilt I haven't try it , The tmc 2660 of duet2 wifi only set "1 2 8 16 32 64 128 256" steps/mm MY leadshine CL57 cloud set "200-40000". So i prepare to change the tmc2660 to 256 steps/mm and the CL57 same as 256 steps/mm ， hope it will work well ,but i don't know tmc 2660 set 256 steps/mm , my motors whether will make big noises.
MY g code will like this

M569 P0 S1;
M569 P1 S1;
M569 P2 S0;
M569 P3 S1；
M569 P4 S0;
M569 P5 S0 R1 T2.5：2.5：5：10
M584 X0 Y1 Z2：4：5 E3;
M671 X-15：-15：420 Y260：20：140 S20;
M350 X16 Y16 Z256 E1 I1;
M92 X100.00 Y100.00 Znn.00 E400; 设定步长/毫米
M566 X900.00 Y900.00 Z12.00 E120.00;
M203 X6000.00 Y6000.00 Z180.00 E1200.00;
M201 X500.00 Y500.00 Z20.00 E250.00;
M906 X800 Y800 Z600 E800 I30;
M84 S30；

dc42

@tangougou said in USE 3 independent Z axis to leveling the bed:

@dc42 By the way , The Z parameters of the M566 M203 M201 M906 commands whether take only a single value? Thanks a lot.

Correct, also M913. It's only the E parameter that can have multiple values.

dc42

@tangougou said in USE 3 independent Z axis to leveling the bed:

The tmc 2660 of duet2 wifi only set "1 2 8 16 32 64 128 256" steps/mm MY leadshine CL57 cloud set "200-40000".

My guess is that the 200-40000 figure is steps per rotation. If so, and assuming 1.8deg stepper motors, then I suggest you use x16 microstepping on the Duet and 3200 steps/rotation on the Leadshine.

tangougou

@dc42 Ok that's very kind of you ,I will try this and report the final results to you.