Orbiter Extruder Motor

[Prathik]

Hi all..
We are planning to build a printer with Independent Dual extruders, here I am not sure about few things. I want to confirm it before starting the work.
Using the components:

• Power Supply 48V
• Duet 3 6HC board
• For X, U axis Using LDO NEMA 17 Stepper 42STH48 2504AC 48MM (https://shop.panther3d.in/product/ldo-nema-17-stepper-motor-ldo-42sth48-2504ac/)
• For Z axis Using Dual Z Dependent NEMA 17
• For Y axis NEMA 23 Lead shine 4 wire
  current/phase -3A
  resistance/phase - 0.8 ohms
  Inductance/phase - 2.8mH
• planning to use Orbiter Extruder for Extruder0 (E0) & Extruder1(E1) which uses LDO-36STH20-1004AHG motor(https://www.trianglelab.net/products/orbiter-extruder-v20?VariantsId=10239)

I've tried searching whether we can operate the orbiter extruder motor on 48V DC.
Here my question is
1.Can Duet 3 6HC drive NEMA 23 motors on 48V PS?
2.Can we operate Orbiter Extruder motor E0 & E1 on 48V PS?

Could you guys help with this

Thanks in advance.
prathik.s

[jay_s_uk]

@Prathik as long as its a 6HC v1.02 then the answer to both questions is yes

[techworld]

@jay_s_uk Thank you for responding
I'm unable to Reply from my personal account @Prathik
Here we are not sure whether the Orbiter Extruder motor can handle 48V DC power supply.
I don't want to use 24V power supply separately for the Orbiter Extruder, we want to connect it directly to the Duet 3 6HC MB Stepper Output terminals.

https://www.trianglelab.net/products/orbiter-extruder-v20?VariantsId=10239
this extruder has NEMA 14 36mm pancake stepper motor with the following rating

• Current/phase - 1.0 A
• Resistance/phase - 2.1*(1+/-15%) Ohms
• Inductance/phase - 1.6*(1+/-20%) mH

We require support regarding this.

Thank you.

[droftarts]

@Prathik if you’re running everything on 48V, make sure your heaters are specified for 48V. Don’t use 24V heaters; they will be overpowered, and have the ability to reach dangerously high temperatures.

Wiring multiple tools back to the the 6HC will be a pain. Have you considered using toolboards? You could also use 24V on them, which is plenty for the extruder motors, and allow use of more generally available heaters.

Ian

[techworld]

thank you @droftarts
Can we run stepper motors with separate power like few motors with 24V DC and few motors with 48V DC (Like the Big Tree Tech Octopus Pro board)?

[jay_s_uk]

@techworld no. but you can run the orbiter on 48v no problem

[techworld]

@jay_s_uk We were doubtful about connecting Nema 23 motors directly to 6 HC boards. I hope it doesnt need any external stepper drivers, isnt it? If the current is less than 5A, we can directly connect 4 wires to the board.

[jay_s_uk]

@techworld why? I've ran NEMA 14, 17 and 23s quite happily with a 6HC and I know 34s can be used directly too.
You cannot connect an external driver to a 6HC directly. You'd have to use a 1XD or 6XD

[dc42]

@techworld the 6HC and 3HC can drive Nema 23 motors easily, and some Nema 34 motors too.

[o_lampe]

@droftarts said in Orbiter Extruder Motor:

You could also use 24V on them, which is plenty for the extruder motors

I don't fully agree with that. A geared extruder runs quite fast and with 'full current'. So it benefits from higher voltage.
Especially when you retract/unretract with 'speed' it provides an extra safety margin.

[droftarts]

@techworld see this thread for a discussion about voltage and stepper motors.: https://forum.duet3d.com/topic/32320/i-m-confused-about-stepper-motor-voltage

Ian