@Phaedrux, feedback: I put it to the test and it works ! thanks again !

@Phaedrux, Thank you so much for your on-point remark ! Best, Selman.

Hello,
Any assistance could be highly appreciated.
I have problems with accurately controlling the speed of the motors using DUET 3D.
Let me explain my case first: I am have a 3D bioprinter prototype. Instead of using ordinary printheads, I have self-made extrusion pumps. these pumps consists of a stepper motor that presses an ordinary syringe, which by its turn extrudes the material outside of it. What concerns me is that I have difficulty controlling the speed and the feedrate control of these motors. I have verified that the steps-per-millimetre is correctly calculated, and the theoretical and real displacement match. yet the motors are unable to execute the actions sometimes at the right speed. For example:
G1 U10 F5: executed in 20s. wrong
G1 U10 F10: executed in 20s. wrong
G1 U10 F20: executed in 20s. wrong
Above F50, correctly abiding by the feedrate rate. correct execution time.
Any thoughts on that?
Thanks in advance.

@droftarts Thanks a lot for the help ! Fore sure it was very helpful ! I was stuck in the situation where my PC (windows) could not detect the presence of the DUET, and so i used Type-C/Type-C cable, which turned out to be critically important. Many thanks once again !

Dear all,
I am new to the world of 3d printers and its instruments, so I may have beginner questions, but bear with me !
My laptop is not detecting the Duet 3D MB6HC, directly connected to my pc. For some reason, it seems to be unplugged. Earlier, it showed it, but all of a sudden it stopped. what could be the solution for that?