I'm still curious if there is any chance of this happening.
If no official release from Duet is forthcoming, is there anyone in the community who can help me create this? I'm willing to do the design work, but I need guidance on how to proceed, as I have no experience with designing electronics.
@T3P3Tony Did you guys discuss this any further? Is it feasible to have this option for 1LC boards, perhaps as an alternative version? (something like 1LC-NEMA17?)
@droftarts Ok, so if I put M591 D0 S1 in my start code and M591 D0 S0 in my end code, I should have it enabled during print jobs, but not when the printer is not doing anything?
@droftarts Thanks for the quick response. I still wonder what the "disabled" state means though. Is it only enabled when printing?
In the documentation for filament sensors it is stated that for RRF 3.4 and later filament sensing is not always active: "Note that filament monitoring in RRF is only active when printing from SD card.".
I would like to know if this means that filament sensor(s) are active when using an SBC to control the printer. Does this count as printing from SD, as technically, the file is on the SD card, and the path to the file is also marked as being on SD, or does the direct control of the SBC to the board mean that there is no filament sensor monitoring?
currently, M591 D0 yields the following result (while not printing):
M591 D0
Simple filament sensor on pin io5.in, disabled, output low when no filament, filament present: no
Does the "disabled" part mean that it is not going to be active while printing?
I'm planning to make a printer with multiple tools (based on LGX extruders) and equip it with revo nozzles. So I would like to see a setting per tool, much like the filament drop down.
I guess that people won't use it if you don't have a relevant UI control to make it easy to use. But that's why this is in the DWC Wishlist. You need a control to make it easy to use.
It would be nice to have a separate nozzle size option besides filament option in order to enable easy changes in configuration for volumetric flow control for machines with multiple tools equipped with easy to swap nozzles like the Revo or Dragon.
I would love to see a revision that has NEMA 17 hole spacing (31mm) so that mounting it on a NEMA17 motors would be possible. It would make it super easy to install one on the Bondtech LGX extruders, for instance. (they sell standoffs which allow you to mount things on the back of the motors.)
How feasible is this?
@oliof How many bear kits have been made? Is it relevant in the larger picture in terms of numbers sold?
@Herve_Smith Yes, I have bought tons of stuff from them. They are a bit slow in responding, but in the end I do get the support I need from them. So no bad experiences on my end, and that includes a couple of support requests, not just the one. I think they're not stellar, but certainly not bad. About a 7/10.
@dc42 I disagree. A SKR E3 V3 will set you back around €44,50, and now that the Raspberry Pies are no longer held back by production problems, that will add only €46 for a RPi 4 1GiB, totalling €90,50. That is less than the 126,44 for a mini 5+ on sale, discounted from the ~€150 it normally costs. (cheapest I could find).
N.B. All prices are from vendors inside the EEA to normalize for imports and are ex shipping.
I think the first four replies in the twitter thread more or less summarize my take. The Ender audience is not as likely to spend almost as much on a controller as they did on their entire printer (if it was one of the cheaper varieties), and if they do want to upgrade they will likely go with the cheaper options offered enabled through Klipper. The Bambu printers could be an interesting option for those who are fed up with Bambu's lack of ethics and who want to open up their printers, although that audience might be limited. I'm unsure about the Prusa audience, but I´d guess that the reach will be limited.
@chrishamm Thanks for your help! 
Are there any EU-based resellers?
@jay_s_uk Yes, that is true for config.g. Is there any way to only trigger it when the RPi boots? That would be good enough to ensure a safe state.
Is there a way to automatically start a script when turning on the printer?
I would like the printer to automatically calibrate itself when I turn it on.
I could of course do it in config.g, but I would like to keep that as clean as possible and reserve it for configuration only.
Is there a way to automatically run a script on startup other than using config.g?
@droftarts I had not considered the possibility that this was a machine parameter. I had only checked out the parameters for the G30 command. Thanks for pointing this out!
I have a cartesian printer with an inductive Z-probe set up as the Z-limit switch. Currently the feed rate for G30 is 120mm/s, which quite low and it will time out if the printhead is at the top of the Z-axis range.
Is there a way to quickly drop the Z-axis before doing a G30? I´d like to preserve the accuracy of the lower feed rate for the actual
I tried the script quoted below, but it gives an error: Error: Probe already triggered at start of probing move
This is my homez.g
; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Fri Jul 07 2023 17:37:13 GMT+0200 (Central European Summer Time)
G90
G1 X106 Y97 F6000 ; go to probe point
G91 ; relative positioning
G1 H1 Z-245 F6000 ; drop Z relative to current position, use endstop as safeguard
G90 ; absolute positioning
G30 ; home Z by probing the bed
G1 Z30 F6000 ; lift Z relative to current position