5 Hotends



  • I have a customer who likes to drive 5 hotends together so synchronously.

    This means that all hotends should be held by a command to maintain a temperament of, for example, 240 degrees and each of the hotends is controlled for itself with the same set temperature.
    this with 5 PT100 sensors.

    How can I do this?

    then it is possible for each extruder itself to mount a laser sensor and if one is not in operation to disable?

    The extruders are controlled to the 5 hotends and are all controlled with the same inpuls.

    is this possible?


  • administrators

    You could configure your 5 hot ends as a single tool with 5 heaters. Configure your slicer to use G10 to set all the temperatures, not M104 not M109. Caveat: in firmware 2.03 there is a limit of 4 heaters per tool, but I can increase this if I know that you need more.

    Also configure the tool to have 5 extruders, and set the mix ratio to 1:1:1:1:1.

    Currently the firmware doesn't support disabling an extruder and continuing the print if the filament monitor reports an error.



  • @dc42 said in 5 Hotends:

    .........................Caveat: in firmware 2.03 there is a limit of 4 heaters per tool, but I can increase this if I know that you need more.

    Off topic as far as the OP is concerned but I could foresee a need to have up to 8 heaters fpr a single tool. That's extreme I know but I have my reasons why that might be necessary. Up to 6 heaters is more likely but 8 could be a possibility. I have lots of work to do before I'll know for sure so no hurry.



  • Thanks for your Feedback
    Please can you make the update on the Firmware up to 5 Hotends.

    I will make the 5x Hotends, the 5x PT 100 and 5x Laser Sensor us synonymous.
    So that I can print in the same time 5x the same object.
    This case give me some open questions.

    When I will use only 2 Hotend, PT 100 and Laser Sensor what will be happen with the other three? Can I Setup them on the Display with a makro?

    Can I setup with G10 P1 R20 S240 all five hotends at the same time? Or I have to make this for every Hotend separately?
    Have you an idea how can I setup G10 in simplify 3D?
    It`s possible to control the room heating on the Display 7?


  • administrators

    @3dware said in 5 Hotends:

    When I will use only 2 Hotend, PT 100 and Laser Sensor what will be happen with the other three? Can I Setup them on the Display with a makro?

    You can set up different tools to use different numbers of hot ends, for example tools that use 1, 2, 3, 4 and 5 of them. So the ones you are not using won't get heated.

    Can I setup with G10 P1 R20 S240 all five hotends at the same time? Or I have to make this for every Hotend separately?

    The syntax is G10 P1 R20:20:20:20:20 S240:240:240:240:240. But I've just checked the code, and if you want all the heaters to have the same temperatures, you can use M104 and/or M109 instead of g10.

    It`s possible to control the room heating on the Display 7?

    Currently the chamber temperature is not shown on the LCD display, but this is scheduled to be added.

    I have increased both MaxHeatersPerTool and MaxExtrudersPerTool to 8.



  • Hello

    I have now played the 2.03beta2 firmware on it and always get the error that T5 is too long. Then 5 heaters and 5 extruders should be controlled.

    do I have to adjust a little more?

    Greetz!0_1552663097655_Unbenannt.png


  • administrators

    @3dware said in 5 Hotends:

    I have now played the 2.03beta2 firmware on it and always get the error that T5 is too long. Then 5 heaters and 5 extruders should be controlled.

    I suggest you use 2.02 firmware for now because that didn't have a limit on heaters or drives per tool. The limit in 2.03beta3 will be 8 of each.



  • but I need the laser sensors on the extruder then I have to take the beta, this is how it works.

    Each laser is connected to an extruder and should only be active when selecting a tool.



  • can you also adjust this for me in the beta version?


  • administrators

    I've increased it to maximum 8 heaters and extruders ends per tool in my current internal build, so that's how it will be in 2.03beta3.



  • Perfect.

    When do you think I can download these from github?

    Greetzz


  • administrators

    I'll try to do a temporary build for you today.



  • @dc42 said in 5 Hotends:

    I'll try to do a temporary build for you today.

    Thank you very much

    do you write me the link for the download



  • @dc42
    Hello

    and could you already create one?

    regards


  • administrators

    Firmware 2.03beta3 is almost ready for release. I expect to release it later tonight or tomorrow.



  • @dc42
    Yes.
    Iam happy.
    THX



  • Hello

    How can I lock functions during a print?
    For example, I can perform the macros as well as the bedleveling when a print job is running, this should not be possible, as the axes do.

    This function should only be possible in the state print job abort or after the restart.

    then another question is there a macro to write the z offset value in the config? I touch with the bltouch and then drive manually on the bed with the nozzle and then want to write the value.

    one more last I have the laser sensors installed these also flash as they should, but I have not calibrated them yet, all 5 are mounted on the duet2 and not on the duex. how can I activate this that you recognize the runout, and how can I adjust the printer so that he drives at a deviation to a certain position?

    what can happen if I mount the laser about 1.2m away from the extruder and connect it with a capricorn tube?

    Thanks again


  • administrators

    @3dware said in 5 Hotends:

    Hello

    How can I lock functions during a print?
    For example, I can perform the macros as well as the bedleveling when a print job is running, this should not be possible, as the axes do.

    This function should only be possible in the state print job abort or after the restart.

    Currently there is no restriction on when you run macros. Some people use macros while a print is running. So we would need to choose carefully which commands can and can't be run while printing.

    then another question is there a macro to write the z offset value in the config? I touch with the bltouch and then drive manually on the bed with the nozzle and then want to write the value.

    There is a version of the G30 command that sets the probe trigger heigh to the stop height, and after using it you can use M500 P31 to save it and other parameters to config-overridd.g.

    one more last I have the laser sensors installed these also flash as they should, but I have not calibrated them yet, all 5 are mounted on the duet2 and not on the duex. how can I activate this that you recognize the runout, and how can I adjust the printer so that he drives at a deviation to a certain position?

    See the wiki page about the laser filament monitor, and the M591 command.

    what can happen if I mount the laser about 1.2m away from the extruder and connect it with a capricorn tube?

    I don't advise that because the motion of filament in the filament monitor won't track the motion of filament in the extruder accurately.


 

Looks like your connection to Duet3D was lost, please wait while we try to reconnect.