Firmware wishlist and priorities for Duet WiFi and Duet Ethernet

dc42

Some new M-codes to whet your appetite:

https://duet3d.com/wiki/G-code#M671:_Define_Z_leadscrew_positions

https://duet3d.com/wiki/G-code#M911:_Enable_auto_save_and_set_threshold_voltages

saffi

Controlling a cooling fan based on CPU temperature and/or driver over-temperature warnings is implemented in firmware 1.19beta2.

What are considered safe max temps for the CPU and motor drivers?

dc42

For the CPU, 85C should be considered the maximum. The reported driver temperature will go direct from 0C to 100C when an over-temperature warning is raised. So I suggest having the electronics cooling fan turn on when either the CPU or the drivers report about 55C or more.

brian

21. Mechanical Z endstop support that stops z movement no matter what!
1.

Will Baxter

my preference would be 5 5 5 5 5 for 4 z motors and quickly pleace

Dougal1957

think you'll find this has already been implemented in 1.19

inachisiojexus

Any hope of getting telnet server anytime soon?

dc42

Already implemented in 1.19. See https://duet3d.com/wiki/G-code#M586:_Configure_network_protocols for how to enable it.

inachisiojexus

@dc42:

Already implemented in 1.19. See https://duet3d.com/wiki/G-code#M586:_Configure_network_protocols for how to enable it.

Apologies… and thanks!

P.s. Maybe the list in the first post should be updated to reflect features already implemented (telnet support is in the first bullet)?

dc42

After the TCT show I will review which requested features have/have not been implemented and start a new thread to prioritize the remaining items.

fma

It would be nice to be able to register several wifi AP, and have the Duet connect on the first available.

Usefull when moving the printer in different places (home, friends, hackerspace…)

Dougal1957

@fma:

It would be nice to be able to register several wifi AP, and have the Duet connect on the first available.

Usefull when moving the printer in different places (home, friends, hackerspace…)

You can already do this in 1.19 Firmware you just add the AP as normal and then I believe the Duet then connects to the strongest one it finds in it's list

See the last line under The upgrade section at the bottom of https://duet3d.com/wiki/Upgrading_to_DuetWiFiFirmware_1.19

fma

Great! I'm running a beta version of 1.19 (with the MTU fix), so I will give it a try.

Thanks!

Dougal1957

It works for me I have both my Router and wifi AP listed so wherever the printer is in the house it works

sverreb

Printers may experience a slight tilt of their carriage for their movement. Tilts that are small enough that they do not matter for actual printing may still cause problems during bed probing as the probe is often significantly offset from the pivot center (where the hot-end tend to be) This causes errors when probing the bed in which probes done when travel approaches from one side along the sensive axis vs. the other creating a bed height map with ripples that do not correspond to an actual imperfection in the bed.

To minimize this the carriage should ideally approach each probe point from the same direction on both axis during probing.

As a simpler but mostly good enough solution it is suggested to allow the user to select if the g29 command traverses X first or Y. While not a perfect solution it does solve any situation there tilting occurs on only one axis

jmjcoke2

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dc42

Time to review the wish list. Here is the original one, in order of decreasing votes, and a note of which ones have been implemented:

(24 votes) 7. Dynamically-varying microstepping. This will allow you to configure 256x microstepping most cases, because the microstepping will be reduced automatically during high-speed moves.

(19 votes) 1. Reworked WiFi server code, including configuration using files on the SD card, automatic retry if the connection is lost, live reporting of signal strength and status, more reliable support of multiple concurrent connections, and optional FTP and Telnet support. Done, although multiple concurrent clients can be problematic when one of them goes offline without disconnecting first.

(17 votes) 6. Live monitoring of TMC2660 driver status and reporting of problems (e.g. overheat warning). Done.

(17 votes) 16. Feed-forward temperature control to predict the effect of turning the print cooling fan on or increasing the extrusion rate, and therefore reduce the temperature fluctuation.

(14 votes) 14. Support for powering off during a print, then resuming it when the printer is powered up again. Done, and being improved in 1.20.

(13 votes) 3. Logging of various events, including print start/pause/resume/cancel/end, and error messages. Done in 1.20

(13 votes) 17. Filament and printing time odometers.

(13 votes) 18. Ability to update PanelDue firmware via the web interface. PanelDue version 3 has the hardware to support this but the firmware support needs to be written.

(12 votes) 5. True bed levelling using 2, 3 or possibly 4 independently-driven Z motors and a Z probe. Done.

(10 votes) 15. Support for PanelOne 20x4 text displays, or possibly 12864 mono graphics displays.

(9 votes) 12. Better support for CNC machines. Partly done (M3/M4/M4 commands implemented in 1.20).

(9 votes) 20. Ability to control an electronics cooling fan thermostatically based on CPU temperature and driver overheat warning. Done.

(8 votes) 8. Standstill current reduction, which will allow higher motor currents to be used when the motors are moving.

(8 votes) 19. Ability to wait for cool down before turning off ATX power.

(7 votes) 11. Better support for laser cutters. Partly done (M3/M4/M4 commands implemented in 1.20).

(6 votes) 13. Automatic advance of changes in the colour mix when using a mixing hot end. See deckingman's blog.

(5 votes) 2. Better network security, including SSL if it can be made to work fast enough.

(4 votes) 4. Independent homing switches for multiple Z motors. Largely superseded by #5, but can be done by defining additional axes.

(4 votes) 9. Auto-park of motors when power is lost. This will help prevent motors getting out of sync when multiple motors are used to drive a single axis.

(4 votes) 10. Axis hysteresis compensation.

In addition, some new features have been requested:

(requested and seconded) Filament monitor In beta

(requested and seconded) Heater fault to pause print instead of aborting it Coming in 1.20beta2

Automatic firmware update I would be reluctant to do this, because firmware updates sometimes require changes to the configuration files

Email notifications of e.g. print complete

Print start/stop macros There is already stop.g which is called when M0 is executed at the end of your print, and you can use the slicer start/end gcode to call your own macros

Automatic XY skew compensation (using Mk42 bed)

Use Stallguard for bed probing See recent thread on this subject

Probe the bed multiple times at each point and take an average

Allow file uploads to be requested during a print, defer them until the print has completed

When bed probing, allow the probe point to be approached from the same direction each time, to mitigate the effect of combined tilt and backlash when positioning the head

As many of the items have been completed now, I'll stat a new wishlist soon. Top of that list will be the highest-voted items that haven't yet been implemented. But before I create a new thread for the new wishlist, are there any other items that should be on it - for example, using StallGuard to detect printing problems?

Mike

Using StallGuard to detect possible print collisions and layer shifts is probably the coolest feature in Prusa's new i3. I realize it's much easier for them since Prusa Research controls which motors they have, but an option to configure that would be really nice.

deckingman

David,

I'd kind of hold fire on "13 - advancing tool change commands" due to my recent discoveries about PLA hydrolysing which means it still needs to be purged. Granted, advancing the tool change command would reduce the amount of purge required, but that purge would still need to happen at the original tool position - not the new (advanced) one. So it all gets a bit complicated. You'd need to do something like move the tool command forward but keep the original in place, then do the (small) purge on the second (the original) instance of that tool command. Having said all that, filaments which don't hydrolyse may benefit but I need to do more testing.
Ian

Vlad

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Not the most popular options, but that would really be a next big step forward in this board and allow us to build more complex machines using it.