Topics created by jhalewood

@droftarts Thank you so much Ian. Really appreciate that detailed input!

You are correct about the crash, occasionally it can get so bad that even with increasing M671 S parameter, it'll crash.

I wasn't sure about including the M906 and M350 commands, I only included because the gcode dictionary says

M584 must come earlier in config.g than any M350 and M906 commands.

But it makes sense they're not needed as already declared originally in order.

Thanks again Ian!

@jhalewood to expand on @droftarts reply, often a shielded ethernet port will have little flexible tabs on the outside of it to make contact with the enclosure metal and give continuity of shielding. This allows someone mounting the board in an appropriate enclosure to achieve a similar connection. If you are not mounting the board in a shielded enclosure and using shielded ethernet cabling then you do not need to connect it.

@jhalewood It works just fine but note that the RPi imager also adjusts cmdline.txt AFAIK. I guess you need to do the same as well.

@chrishamm Chris you are a fricken legend!

@jhalewood You can use JPEG/MJPEG, which is what Motion webcam server provides (see DSF in the linked article). Basically you can use any format that can be displayed in a browser; if it cannot be rendered using an img tag, you can still embed the remote stream using an iframe.

AFAIK only MJPEG is generally supported in browsers. If rtsp was supported, I'd add support for it, too.

@jhalewood said in Help choosing a more appropriate stepper:

My extrusion speed becomes limited (I believe) by hitting the speed limit of the steppers

If you already have problems with extrusion speed, how about retraction? Do you retract at the same speed as you print?

The digikey listing isn't very helpful. I could reduce the number of candidates to '60', by selecting 5mm shaft. I guess, that's what the Nimble needs?
Looking further for lowest rated voltage only the trinamic steppers popped up. They are quite expensive and their voltage rating isn't very low.
I'd recommend looking for other vendors and pick a Nema17 pancake motor with low inductance. Speed is all you need with 40:1 gear ratio

Thanks both of you.
That's what I thought, but wanted to check.
If it's alright, I'll add a little comment to the wiki, since the above is not reflected in it.

@jhalewood usually the max rated current is based on a thermal limit (ie the motor gets too hot if you put more current through the phases).
The both-phases rating will probably be higher, but I doubt it will be anywhere near double, as its still the same motor you're putting the heat in. Id guess 20% higher, but that's a bit finger in the air... There's also a question of whether the stated values are peak or RMS. Someone who understands this better might be along to explain it
Having said that, I currently run a couple of my steppers slightly above their rated current without issue (never checked if it was per phase or not). You need some good airflow around them for the heat to dissipate. I'd try just turning up the current a bit until the motors get too hot to touch after running for a bit (I think about 60C is a typical limit). Make sure you're mounts aren't PLA though!
Of course everything else you do to help the situation is also a good shout 🙂

@rjenkinsgb Thanks mate, very kind, but I'm not in UK
One of your colonies...

This was fixed in release 3.2.2.

@chrishamm said in G29 not writing a heightmap.csv:

G29 S3

this worked. Can confirm that running a mesh level from the dashboard then manually sending g29 s3 saves the heightmap.

(manually sending a g29 s0 in the console causes the console to be stuck on processing and doesn't finish, so you cant sent any more commands)