Thank you for your help helped me a lot.

I build a Cartesian printer with moving printed bed, the portal is pretty backlash-free, a switch is pressed and the second maybe 0.5 mm later, the backlash of the thread spindle is overcome, and then the portal slightly clamped to the switches come.

At the Z-synchronous timing belt and a single Z-stop, the spindle nut always remain on the same side of the thread when the switch is triggered, once set it always so.

With a Corexy, of course, the two Z-stop design is the better way.

Greetings Torx_1

My question was, if it is so OK to connect the two Z-stepper motors in Series, to a driver? (As in the picture) 1,33a has a stepper motor.

At duet3d.dozuki.com/Wiki it is recommended to do it.
„If you have two Z stepper motors, then for the types of motors commonly used in RepRaps (i.e. with rated current in the 1.2 to 2.0A range), it is better to connect them in series than in parallel.

Or, however, as recommended by DC42, to two drivers, but I do not realize when a motor fails because a Z synchronous belt is installed.

I might be awkward with my question, grateful for any help.
Greeting.

Thanks for the answer to worry less, and no solder work to wire stepper motors serially.
Connect a Z-stop, and a synchronization belt between the two Z axes.
Thanks for the help.

Greetings Torx_1

Hello I'm not sure how to connect my two Z-stepper motors to Duet.3.
Have two 1,33a stepper motors, according to instructions should I wire them in series, but the duet.3 has 6 drivers why not for each single Z-step engine a diver?

Manual.
duet3d.dozuki.com/Wiki
„If you have two Z stepper motors, then for the types of motors commonly used in RepRaps (i.e. with rated current in the 1.2 to 2.0A range), it is better to connect them in series than in parallel.

My questions are:

1. Serial or every stepper motor gets a driver?
2. Serial circuit better Since no step losses are possible?
3. Serial circuit is safer there are both faults and not a continuing?
4. If over 2,0A then back in parallel loud according to the instructions?

Am grateful for each proposal and explanation.

Greeting TORX_1

@Phaedrux That's the good thing that is so flexible with the DUET3, I use your advice then out0 for the bed and leave 1 2 3 as an extruder away.
This does not burden the board no more than with OUT1-OUT3, two thick cables are more from the power supply to OUT0-POWER-IN and OUT0 for SSR or bridges of power-in.
Thanks again for the explanation and proposal.

@Phaedrux Thank you for the quick answer now I'm calmed down.
Is that in the picture as so feasible? And that's better to OUT1 to OUT3 than OUT7-OUT9 with Juper on V_IN (24V).
There are certainly a few questions more in the next few weeks, but I'm in good hands here.
Thank you

@Rushmere3D

I do not want to switch twice, the Mosfet of Out0, and the SSD.

Hello the duet3 comes next week, and I'm not sure at the wiring, would be friendly if someone could help me before I scrap.

I am working on using a Duet 3-Setup with 230-V silicone Heating Pad and SSD Solid State Relays, but I'm not sure like me the SSD with the board wiring.

I do not want to go over the MOSFET OF OUT0, but connect via an output out_4 to out_9.
But how do I tab the SSD Plus (+) and minus (-), it has four different connections at out_4 to out_6

1. GND
2. V_OOUTLC1
3. out4.tach
4. Out4

At out_7 to out_9 two connections

1. V_OUTLC2
2. Out7
   And I can configure the heating bed and the temperature sensor in the Duet Web Control, or via G-cods.
   Say already thank you for the help. Greeting