Topics created by kj3d

Hi

That worked. I can now reliably detect the stall. Ideally I would like to stop the filament feeding when the stall is detected.

At present I use G1 E1000 F1000 to feed filament up to a second extruder, how would be best to interrupt the G code part way if a stall is detected if it reaches the second extruder after 900mm (bearing in mind the end stop limitations with the canbus boards)

@dc42

Thank you for your reply and an insight into the latest firmware. The good news is that the firmware has not caused any obvious issues (we are always very wary / cautious)

However the dwell timing issue is still present. I have been through the three points you listed and it has not cured the issue.

The most significant "controlling" factor seems to be the direction called in the M569 call. after dwell the motor with S1 starts earlier than the motor with S0.

M569 P31.0 S1 ; Y (first Y)
M569 P32.0 S0 ; Y (second Y)

The Clearpath servos give us the option to reverse motor direction in the firmware of the servo (we can then run both Y M569 lines as S1 or S0 - that gets round the issue on an operational level but does require a service engineer to configure a motor dependent on if its on the left or right side of the gantry. We would prefer not to do that (it increases the risk of an error during replacement of a servo - should it be needed. It seems much simpler to take a stock motor and simply fit it rather than having to use left hand or right hand direction motors)

We are fairly certain that the issue is Firmware related rather than a fault on the 1XD boards.

How is the dwell period controlled for timing from the hardware?

URIKA - I reloaded the DWC Web Control - SD file.zip and all sorted

https://github.com/Duet3D/RepRapFirmware/releases/download/3.5.0-rc.1/DuetWebControl-SD.zip

Thanks everyone for the help

@dc42 - Thanks

@dc42 - Thanks for your reply. I will let you know how I get on. For the majority of the harness am using Chainflex Bus cable CFbus.PVC with at each node point a Gravitec RJ11 connector - The bus cable loops through the Gravitech connector. The cable to the RJ11 on the 1HCL is some simple flat 4 core (Unscreened) approx 150mm long with a ferrite core near the Chainflex bus cable.

I will let you know how it works out.

Thanks again

@kj3d if you read the other thread you will see that the user inserted some G4 P100 delay commands between homing moves to work around the problem.

@dc42

Thanks - thats good to know. problem resolved and board working very well!!

@kj3d said in PID Tuning Bed Problems:

Heated bed size is 1100 x 1050 with 1800watts

It's probably taking a very very long time to drop temp?

@kj3d said in PID Tuning Bed Problems:

Warning: heater behaviour was not consistent during tuning

It means that the heating and cooling rates didn't settle down to consistent values after several cycles. One possible reason is noise on the temperature sensor readings, which would be apparent in the temperature graph. What did the graph look like during tuning? What does it look like in normal use?

You can take the values it provided and manually tune them if you're not getting good results with them.

https://duet3d.dozuki.com/Wiki/Tuning_the_heater_temperature_control#Section_Setting_the_model_parameters_manually

@kj3d No worries - I've appreciated a second pair of eyes many times myself. Glad the issue is fixed - that's the main thing.

On the larger PD screens the limitation is 6 axis. To add a homing button you can create a macro in the root of the macros folder that calls the homing file for that axis (G28 A) then it will show up in control page in that blank white space in the upper right corner as a button.

https://duet3d.dozuki.com/Wiki/Setting_up_macro_files_for_common_tasks#Section_Naming_and_ordering_macros

https://github.com/Duet3D/RepRapFirmware/releases/tag/3.2.2

Uploading the full zip file to the system tab in DWC should prompt to update everything. If it's still not in sync after that send M997 B1 to initiate the flash of the expansion board.

https://github.com/Duet3D/RepRapFirmware/releases/download/3.2.2/Duet2and3Firmware-3.2.2.zip

Thanks for that explanation - that makes a lot of sense.

Regards - KJ3d

@kj3d email sales@duet3d.com they should help you out