I can never remember the appropriate github page to check for new firmware.
It would be great if in Webcontrol Settings/General/Software_Information there was a direct link to this page.
(The page linked to would of course adapt according to the Firmware Electronics detected.)
Thanks!!
DWC 2.0.7 - layer times would benefit from diagonal x-axis legend just like temperatures. Would be more readable (at least on my standard browser settings). A quick win.
I run prints overnight and when return laptop will Webcontrol will inevitably have to reconnect (laptop sleep).
It would be GREAT (and give a much better impression of a fully integrated system) if at that point Webcontrol could retrieve the duration of the print that just finished. That's invariably something I'd like to know!
Would also be nice to have print end time (a real time) just as we are all hoping for "estimated finish time" to make it's way back in to webcontrol!
Recently swapped in NEMA23 and am delighted with the results. Discovered that NEMA17 have "small" connectors and needed to crimp some JST-XH ("proper sized connectors"!) to wire the NEMA23. This was done on the fly, balancing on one leg under an angle lamp and surprise surprise one of the crimps wasn't perfect.
A few days later mid-print walked passed the printer and it starts making horrible noises. Turns out there was a "short to GND Driver (0)" type error but apparently not enough to stop the print. The extruder had shifted sideways quite a bit and the noise was because the nozzle was scratching over an area just printed. Otherwise might not have noticed. A miracle didn't crash into the rails at the side which would have been nasty with big motor power. Clearly my walking by had triggered the bad crimp.
QUESTION: is it possible to set up the Duet to pause the print when various errors come in (other than just standard thermal runaway)?
DWC 2.0.7 / Safari
I have a regular stream of "disconnected / attempting to reconnect" type notifications. The popups have no value and the console becomes unusable because too difficult to find the useful messages amongst this junk.
Is there a way to turn off notifications about connection status? (anyway it was always obvious if you're disconnected because everything greys out)
Agreed about a backup zip file download feature. For all the user modified config files.
The whole thing about backups is that they're a pain to do and they need to be as easy as possible if there's going to be a chance anyone will do them.
If I lost my config today… I'd cry. 
any chance of a subdirectory in sys for all the binary files? Now that there's firmware for multiple boards etc. it's getting cluttered in the space one scrolls for user-editable files.
/bin
As far as can tell, when DWC is switched to mode where the toolbar is hidden the word "Railcore" just to the left of the Gcode send box doesn't actually do anything when you click on it: runs a script void().
Based on my usage, my suggestion would be that, when you click on it, it takes you to the Dashboard page. EXCEPT when you're already on the Dashboard page in which case it takes you to the Console.
Any thoughts?
Having read up the on the Stallguard feature of the TMC2660 drivers, wonder if there's a way to make use of it.
In particular, how about a test routine which performs a series of increasingly rapid accelerations on the various axes?
The objective would be to monitor the output from the Stallguard, perhaps to determine what acceleration demands 80% of maximum torque of each motor (the masses, frictions, leverages etc associated with each axis are going to be different).
These figures might then inform the selection of acceleration parameters for the 3d printer in question.
@jay_s_uk Awesome. So it' just 5v/GND and the STEP/DIR inputs. Worst case scenario I can hook up with a handful of female-female breadboard connectors from the Stepper10/11 connector on the Duet Wifi.
Thanks a LOT!
hey guys, I'm still stuck on this. It's not clear from the Documentation (https://docs.duet3d.com/Duet3D_hardware/Duet_2_family/Duet_Expansion_Breakout_Board_ ) what the expansion breakout board uses by way of Input. It's not clear what the chips are on the board.
DO they just use pins like +5v, +3v, STEP, DIR... that I can take from the small connectof (steppers 10/11 etc) above? Or do they require the full-on MISO/MOSI stuff?
I feel the need, the need for speed!
Already have a Duex connected to the large connector of Duet Wifi.
Is it possible/OK to wire intelligently an Expansion Breakout Board (to get differential driver outputs) to the smaller connector on the Duex Wifi (Steppers 10 and 11, next to the Panel Due connector)??
@o_lampe paragraph 0050 (and a few leading up to it) may interest you (in conjunction with associated drawings).
https://patents.google.com/patent/US20190240969A1/en?oq=++++++++++US20190240969
@o_lampe Yes, I've heard of people controlling the fan intead. But don't like the idea of that because intend to blow the air at print level so want it to arrive close to correct temperature, not have a dribble (for example) of very hot air.
@fcwilt the heaters are dead cheap but will take some time to arrive - and if it doesn't work, then will take more time to order something else and wait for that to arrive. UR right, should have ordered to try a long time ago.
@fcwilt Have noted that there is now a fashion for PTC heaters for safety reason. What I would like to know is, if I order a PTC heater will I then be able to PID tune the chamber or not? Or whether it is necessary to implement some other kind of control mechanism?
Wondering if chamber temperature can be PID tuned if heating delivered through SSR / PTC heater? Reason being, since the resistance of the heater changes with temperature, that might be confusing to the PID algo who then finds it's ON cycles have less / more impact than expected? A second thought would be that it will surely have experienced just that during the tuning, so no surprise. But then a third realisation is that the "temperature" it receives from the sensor has nothing to do with the "temperature" of the heater element (and thence it's resistance) because, whereas in a hotend block the two are the same, chamber air can be at a very different temperature to heater element. Thoughts? Experience?
@dc42 now I feel like I'm observing the origins of the universe. (Well, the electrons are a little blurred.) Thank you.
@dc42 said in the ADC / thermistor calculation for the Duet?:
0.44
That's excellent!
(And silly me, not thinking through properly voltage dividers. )
@dc42 So, if I understand correctly, for the Duet Wifi, the figures are approx. double i.e. 1.2C for 12bit resolution with the PT1000 and 0.3C for 14bit.
If, as you say, noise has a certain probability of being directional, that means that if I'm printing ABS at a nominal 260C I might, in fact, be at a 12 bit version of 260C, in other words somewhere in the range 258.8-261.2C.
The PID controller would kick in at the limit of that range (when the ADC increments/decrements) and tend to steer the hotend back into it, though presumably there will be some overshoot relating to the physical separation of thermistor, heater and meltzone.
Since the duet will in any case display 4 significant figures (260.3C), derived from the possiblity of 14 bit accuracy, what I observe in DWC will actually be an oscillation in the range 260 +/- 0.3C (if no overshoot occurs and is registered). Or perhaps eg. 260 - 1.2C +/-0.3C ?? Hmmm