Well it was the tronxy board in general. Swapping the power supply made it better but still faulty. Now I switched to a SKR mini E3 v2.0 and that works great (and no noise). The electrical part is ready now. However, I am still not up and running. The orion is dialed in so sensitive that it triggers when I move next to the table the printer stands on. But when I try to use the Orion, the bed moveby janth - General
It was. As I said, I destroyed the regulator while measuring. I then added an external that could handle 5A but it was still the same. The new control board arrived today but none of the connectors fits and the pin mapping is wrong so I ordered these. This printer totally pisses me off.by janth - General
Hello again. I don't know how my printer worked before I switched to marlin and updated the hotend/z-stop. When the stepper motors are activated, there's 10 V (peak-peak) noise all over the place, also in the 5 V part of the control board. It does not come from the motor cables: Detaching them from the board does not make any difference. My guess is: switching the 24 V for the steppers creates nby janth - General
I have found a signal that switches with every emi pulse that I see on the z stop. It’s the output of the dc dc step down converter (MP1584EN) that converts the 24 V of the power supply to the 5 V needed for the microcontroller. I guess that this signal itself is not causing the emi but rather the current that runs though the cables from the power supply to the controller board in that moment. Hoby janth - General
Well, I used a different oscilloscope than 5 weeks ago and both showed the same results. We got fluorescent tubes at work but the issue also occurred at home (only recognized the z stop issue, I don’t own an oscilloscope). I will try with lights turned off tomorrow.by janth - General
@Moriquendi Well, it’s not the Orion module that causes these issues. The noise is on all signals and supplies. It occurs every time 2.1 us (460 kHz). I completely detached the Orion module which did not change anything. Then I changed to a dc power supply from the laboratory which didn’t change anything either. Even if I keep the reset button of the controller board pressed, the noise is still tby janth - General
@ Moriquendi I think the Orion does not trigger, but these spikes make the controller think it triggered. But I have been in home office for the past couple of week so I could not use my company's tools to figure out what causes the spikes. If anyone sees the spikes and maybe had a similar issue, please let me know what caused it!by janth - General
@Moriquendi yes, it looks like EMI. Since the spikes go below 1.2 V I guess that's the reason for the instant false triggers. I only checked the V+ wire which has no such noise. However, this wire is way shorter since there is a DC/DC step down converter in-between and it isn't connected to a high impedance input. That's something I'm gonna check. What makes me struggle is that the noise stopsby janth - General
Hello Pull-ups are enabled and I use the D-output. The high voltage is 4.3-4.5 V and low is 0-0.1 V. That looks fine. But I don’t know what causes the ripples. Best Janby janth - General
Hello again I checked the signal line to see, if there’s noise on it. And there is, like there’s a lot. But it’s just on S, not V+. I had no more time to have a deeper look at where it comes from, so maybe anyone here has any idea. As mentioned, I added a DC/DC converter to get V+ from 24 down to 5 V (like here). V+ (after the stepper) has almost no noise. However, I put the signal line as faby janth - General
@Moriquendi Thanks for the reply. The cable is connected to the D side of the pin header. I ended up enabling the pull-ups and Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN. I further set ENDSTOP_NOISE_THRESHOLD to 7 (highest value), DELAY_BEFORE_PROBING to 2000 and enabled PROBING_STEPPERS_OFF and PROBING_FANS_OFF. Then I set all max accelerations to 2 mm*s^-2 and z-jerk to 0.01. To have a strong impact, Iby janth - General
Hello, I got a Tronxy X5SA Pro and built a new print head that includes an Orion V2 piezo. I'm trying to get marlin to work with it, but there is no way to get it to work. Both do pretty much the same thing: : However, I tried all possible combinations of pull-ups of Z_MIN_ENDSTOP_INVERTING and Z_MIN_PROBE_ENDSTOP_INVERTING. Z_MIN_ENDSTOP_INVERTING and Z_MIN_PROBE_ENDSTOP_INVERTING set to truby janth - General