Topics created by patrickwjoyce

@patrickwjoyce , try starting your macros (homex.g, homey.g, homez.g) with command
M400 S1 ; wait until motion stops, do not release any axes or extruders

@tas I just assumed that Z was 1 because of gravity. I think that the frequency domain analysis of each axis is done independently since Z shows a very small amplitude in all of my original graphs.

@gloomyandy thank you, I did eventually figure that out. I did check the wiki and firmware, and the accelerometer is already collecting data at the max frequency (1600 hz). And the biggest issue that was occuring with the long tail of data is the hot end cooling fan frequency was creating a false signal.

Regarding my specific case, I was able to solve a lot of my issues by securing the cable to the gantry because the rubbing on the frame was causing lots of noise. And the low amplitude seems to just be from my printer being particularly rigid at the speeds I can go (score 1 for past me!). I'm currently limited by hot end flow rate, so maybe if I switch back to my volcano, this will become more important.

@phaedrux Thank you! (that did not come up when I did a search before posting)

@pixelpieper said in DWC is requiring multiple restarts to connect:

I had a simmilar behavior which seemed to be fixed by making sure to include the SSID within the M552 command.

I do have the SSID entered via the M552 command, but oddly enough, only one of my SSIDs would actually connect properly. Over the course of my trouble shooting I tried my 3 different SSIDs but the only one that would connect was my super isolated IOT subnet. I'm wondering if the new wifi server version might fix that issue as well.

@Veti Thank you for clarifying the warning. I have the V1.0 BLTouch, and it is currently setup for 5V.

The Maestro isn't in production anymore, so probably not?

But glad you like the Duet and RRF. Hope you enjoy the mini5. It's a nice little board for sure.

If you copy a file to the SD card on a PC, you need to tell the PC to "Eject" or "Safely remove" it, and have confirmation from the PC that it is safe to remove before you pull it out of the socket. Otherwise the PC may still be copying data from its cache to the SD card, even though the file copy is shown as having completed. Also, removing the SD card before the write has completed may result in a corrupted FAT.

I suggest you put the card in a PC and run disk checking tools on it, to check whether the SD card has been corrupted.

Uploading files over the network to a Duet Maestro usually runs at 600 to 800kbytes/sec, although for very large files it may slow down a little. So a 218Mb file should upload in less than 10 minutes. If it is taking longer than that:

Check that the SD card is formatted with 32kb or 64kb clusters (64kb is best). You can use the M39 command to check. Consider buying a better SD card. We suggest choosing a well-known brand with at least a Class 4 speed rating. Format it using 64kb cluster size.

When you upload a file to the SD card over the web interface, the firmware checks the stored file size against the file size reported by DWC, to guard against lost data.

@patrickwjoyce said in Only one stepper is noisy, what settings will quiet it down?:

@dc42 So I just went through the EMF calculator for my motor, but I'm not sure how correct they are since they rely on belt pitch and # of pulley teeth. I use a string drive on a spool so all I have is spool diameter and steps per mm. However, when I manually put my steps per mm at 110 with the rest of my settings, the calculator says that my step pulse freq. is 11 kHz @ 100mm/s, and my torque starts to drop at 65.8 mm/s with 0.8 mA max current provided.

The steps/mm @ x16 microstepping is all the calculator needs to know. The options to enter pulley teeth etc. are for users who are still designing their printers and don't know what the steps/mm will be.

This brings up a few questions:

Would changing the microstepping have an effect on the speed at which the motor gets noisy?

If the noise is due to the driver running out of supply voltage as per the above calculation, then no.

Is there a max bandwidth that the motor drivers can handle, and is it related to max current setting in the firmware? I'm wondering if lowering the max current value will let me keep the same speed but quiet down the motor.

The drivers can handle step frequencies of more than 100kHz.

Lowering the motor current will increase the speed at which the drivers run out of voltage. You will see this if you put a reduced actual current in the calculator.

Which factor has a bigger effect on the speed at which torque drops: phase inductance or phase resistance? If I do replace the motor I want to make sure I get one that can move at the speeds I desire

Inductance.