Topics created by GuruSMI

@gurusmi said in Duet2Ethernet - Phase to ground when unconnected:

After changing all i did not connect the electrical lines.

What exactly does that mean?

Does the error message go away if you connect the motor?

@phaedrux
Yes. Pressing the button "Alle referenzieren". At all towers the sliders drive up to the endstop.

But i got the mistakes/errors i did.

I use3d accidently 160 Steps for my 0,9° steppers instead of 80 for my 1,8° ones.

and much more irritating i used a wrong polarization on the extruder. Testing the extruder everything ran fine except the z-axis endstop. I used the original Nema cable and also the connected plugs. And that went wrong. For the next time i will use the Molex Plugs and also change the full cavle as i did at all other ones. I also exchanged all other cables by own ones and used the Molex connects.

At last i need clean everything and check the PTFE way of the bowden down to the heatbreak of that hotend. This is needed as i used an (thingiverse redesigned) adapter for the Dragon/Dragonfly hotend.

As i use Version 3.3 of the firmware im a bit confised about some error messages. I reference all towers and a T0. I receive an error "Error: New tool too close to Z axis limit. Aborting tool change". Straight after i try it again and everything works fine. But it only happens when i try to set it active. Mysterious.

@garyd9 Thanks for making the original design and sharing the STEP file 👍

@pickett
Chance favors the prepared mind. - Louis Pasteur. 😉

In the question of which board to use i think primarilly about the PWM-Fan Outputs. I will be in need of at least 4 PWM fan groups. For hotend, partfan, the chamber and also the electronics box. I already have a thermistor for the chamber temperature installed. I also started with a cloned Duet2 but then I ordered an original one and i saw the differences in quality (i.e. soldering). I will keep on the originals. This printer did cost me a hell. If i would be married my wife would have killed me about that.

@jay_s_uk
It was definitly a huge help. I got a real good overview about the printer and the work. After the lecture i was able to say that i was able to work on the planned modifications. I got an idea what i want to print and what i need for. I don't want to be limited by a machine. Getting told all the time that i cannot. I heard that so often that i cannot do it because of a minor reason. I can't hear it anymore. I planned my hotend to be able to print at 500°C. Possibly I will never use that temperature but I'm able to. In my plans i will use the Predator for ABS/ASA and PLA in all the different flavors, Btw. I forgot to say that I use a volcano hotend with a PT100 and a 60/70W heater cartridge. I want to print the Parts of my own built printer on the Predator. Also i produce some presents (figures,...) for christmas and eastern. It is a hobby for me with no intend to earn money with that machine.

@gurusmi because it depends so much on the machine, and they are all different, it is mostly “try faster until it fails”! However, you will usually get poor results before failure. @Phaedrux created a set of macros and a guide to tuning speed, see https://forum.duet3d.com/topic/6181/tuning-macros-menus-accel-jerk-retraction-pressure-advance

Ian