[Mummed]

Hello all, 
I'm new to RoboDk and I apologize if my questions are so basic. I have read the documentation and lots of threads and still, I am a little confused about the printing process. 
but I have some basic questions:
 
1. Based on the documentation why do we need to change E directive? What does this change mean?
2. Why do we need to edit postprocessor? 
3. If we want to use RoboDk as an online bridge to perform printing, Do we need to do postprocessing? (triggering new_move function and adding some script "before MoveL program definition"?
4. If we use  RoboDK (online) for 3D printing, are we still limited to 1000 lines (educational license)?
5. Can we use controller I/O to control the extruder?

Thank you in advance. 
Mohamad 




Some threads that I have read so far;
1.  KRC4 KSS8.3.33 KR60+DKP400 3D printing online programing (robodk.com)
2.  How to simulate extrusion for 3D printing? (robodk.com)
3.  UR10e - How best to overcome file size limitation (robodk.com)
4.  3D printing with UR10e (robodk.com)

[Albert]

Have you defined your extruder hardware and how you'll connect it to the robot?

One of the main challenges with 3D printing is the hardware you use to drive your extruder and how you integrate your extruder with the robot. Once you know that, you can customize the way you generate your programs to match your needs.

[Mummed]

Have you defined your extruder hardware and how you'll connect it to the robot?

One of the main challenges with 3D printing is the hardware you use to drive your extruder and how you integrate your extruder with the robot. Once you know that, you can customize the way you generate your programs to match your needs.

Dear Albert, 

Thank you for your response.
Yes, the extruder is DYZEXtruder Pro, and the control board is Duet 2 Maestro (RepRap Firmware). robot arm is KUKA-KR-3-R540. I intend to send an extrusion signal to the Duet board from the robot controller and control robot movement online with RoboDK, and as I mentioned I am a little confused. I appreciate if you could give me some hints regarding those questions or any other instruction that can assist me on this matter. 

Best, 
Mohamad

[Albert]

The integration with the extruder depends on the firmware that drivers the extruder. I assume you can send G code commands or strings. You may need to integrate this with your robot. I recommend you to start with a post processor for 3D printing as a first step.