Topics created by Rushmere3D

@Hugsy said in Temperature controlled LED display:

I strongly advise to not put any M98 inside daemon.g as it can disrupt the main DDARRing and cause stutter in the movement. What I usually do is copy the macro inside the daemon.g and even then some commands might disrupt the movement, at least not the whole macro will cause problems. Maybe we can queue the commands in a different G-Code queue with RRF3.5 to avoid all of this.

The main issue with doing too much in daemon.g is contention for the SD card. Using M98 causes it to open the macro file, which involve several SD card accesses.

Also there should be a delay command inside the while loop in daemon.g so that there are periods of time when daemon.g id not competing for resources. This delay should normally be at least 1 second, but more is better if you don't need daemon.g to react faster to changes.

@sputnikoc3d said in Failed Duet3 & SBC firmware update (again):

@piet

Any guidance anywhere in the forum or in docs on updating sbc mode fw when printer has no internet access directly ?

I suppose you could download the DuetPi image for 3.4 and reflash the SD card (backup your config) and then use M997 to update the firmware on the board.

@dc42 Thanks for the swift response.

OK, managed to get on the unstable release. Not sure what happened before as this time it also asked me to confirm updating the attached 3HC board?

Anyway, the release seems to have solved my issue.

But I do have a question. I was using the execonmcode method to shutdown the pi safely to avoid the possibly of corrupting the SD card, with a complete fresh install I currently don't have that setup, so how are other handling it?

Thanks.

@chrishamm

Managed to downgrade to the stable release but now not 100% confident in the system.

Was getting errors about something not being loaded and then incorrect passwords and then in connected but then error again.

@jay_s_uk

Yep, that's done it.

If you have 24V available, how about a 24V to 12V POL convertor? That will be smaller and lighter than a mains PSU.

https://www.digikey.co.uk/en/product-highlight/t/tdk-lambda/i3a-series-non-isolated-dc-dc-converters is 23.4mm x 19.1mm x 9.6mm and weight 8g and will give you 100W.

I'm not sure how much it will like a rapid PWM load, and you'd need a better datasheet than I can find at that particular link, but it (or similar) looks worth examining?

@Rushmere3D said in Duet 3 Mainboard 6HC & Duet 3 Expansion 3HC:

@deckingman Thanks, if I have already PID tuned the hotends before adding an expansion board I can just use that data, right?

As @dc42 said, yes of course you can. One little tip, if you haven't already tuned the heaters with the latest algorithm (i.e. post RRF3.2) then you might want to do that before connecting the heaters and thermistor to an expansion board (but you can still use the old style PID parameters so it's not all that important).

Hey all,

OK, my much smarter friends I need a little guidance. I'm trying to calibrate my iDEX printer and I am struggling with the offsets for the hot ends. Please can you take a look at the image a suggest which way to adjust the values (add or subtract etc) Thanks.

Current offsets:

G10 P1 X0 Y-0.8 U-0.5 Z0

IMG_20210418_111128 (2)_LI.jpg

@Rushmere3D said in Mirrored print and confused by home direction:

D-bot did which was back left as X Min Y Max, or at least I thought

The dbot layout in the build instructions is X min and Y max when 0,0 is at the front left corner.

In addition to the documentation links already provided you might find these posts helpful on setting up corexy.

https://forum.duet3d.com/topic/14971/vcore-pro-core-xy-the-x-and-y-axis-home-issue/4

https://forum.duet3d.com/topic/12676/mirrored-x-axis/9