Jump to content
UltiMaker Community of 3D Printing Experts

Cura 2.3.1 Heat the bed and nozzle at the same time


catohagen

Recommended Posts

Posted · Cura 2.3.1 Heat the bed and nozzle at the same time

Nope. In a lot of cases this is intentional as we are on a pretty tight power budget. We've had printers that would turn themselves of if you tried heating them with max power from the start.

  • Link to post
    Share on other sites

    Posted · Cura 2.3.1 Heat the bed and nozzle at the same time

    Nallath, printer works fine with this in Simplify3D

    M190 heats the bed with wait

    M140 heats the bed but jumps to next line

    so added these lines to the start gcode in machine settings :

    M140 S{material_bed_temperature} ; set bed temp

    M104 S{material_print_temperature} ; set extruder temp

    M109 S{material_print_temperature} ; set extruder temp

  • Link to post
    Share on other sites

    Posted · Cura 2.3.1 Heat the bed and nozzle at the same time

    Nallath, printer works fine with this in Simplify3D

     

    Like I said, it can work. But not all power supply units are exactly the same.

  • Link to post
    Share on other sites

    Posted · Cura 2.3.1 Heat the bed and nozzle at the same time

    Apart from @nallath electrical concerns, there's another reason why it is nicer to first heat up the bed, before starting to heat up the hotend: The hotend is going to reach its target temperature much sooner than the bed. Idle filament in a hot hotend can start to ooze and/or deteriorate in quality. For some materials (eg wood filled or brass filled), it can even lead to clogged nozzles.

    The added wait time of first heating up the bed and then heating up the hotend is going to by negligible compared to the print time for anything but the smallest of prints.

  • Link to post
    Share on other sites

    Posted · Cura 2.3.1 Heat the bed and nozzle at the same time

    Apart from @nallath electrical concerns, there's another reason why it is nicer to first heat up the bed, before starting to heat up the hotend: The hotend is going to reach its target temperature much sooner than the bed. Idle filament in a hot hotend can start to ooze and/or deteriorate in quality. For some materials (eg wood filled or brass filled), it can even lead to clogged nozzles.

    The added wait time of first heating up the bed and then heating up the hotend is going to by negligible compared to the print time for anything but the smallest of prints.

     

    Yes, I totally agree....but if we know all these things and still want to heat both, I think there should be and option :)

    If a print is finished and i want to do another one, the bed and nozzle are already warm but temp drops, if I start a Simplify3D file, both starts heating back up again, but start a Cura file, the bed heats and the nozzle cools meanwhile

    Hide it under expert settings or in the machine settings with a warning of weak PSU issues and clogged nozzles.

  • Link to post
    Share on other sites

    Posted · Cura 2.3.1 Heat the bed and nozzle at the same time

    A) Go to Preheat on Tinkergnome's firmware. Heat the bed to material temp, and set the extruder temp to 130 or so, which should be safe with any filament I've used.

    B) Wait for the bed temp to get to 3-5 degrees below target temp.

    C) Print the model, with the nozzle already pre-heated. The bed will reach the target temp at about the same time as the print begins.

    This is all automatable with Kisslicer using simple pre-print gcode and KS' temperature variables.

  • Link to post
    Share on other sites

    Posted · Cura 2.3.1 Heat the bed and nozzle at the same time

    A) Go to Preheat on Tinkergnome's firmware. Heat the bed to material temp, and set the extruder temp to 130 or so, which should be safe with any filament I've used.

    B) Wait for the bed temp to get to 3-5 degrees below target temp.

    C) Print the model, with the nozzle already pre-heated. The bed will reach the target temp at about the same time as the print begins.

    This is all automatable with Kisslicer using simple pre-print gcode and KS' temperature variables.

     

    Tinkergnome's firmware is UM2 only, im on UMO

  • Link to post
    Share on other sites

    Posted (edited) · Cura 2.3.1 Heat the bed and nozzle at the same time

    Nozzle heats up faster than the bed, so I set the bed to heat upto 50° first, and then start heating the nozzle and bed at the sime time, its perfect.

    Start Gcode :

    M190 S50 ; wait for 50C bed temp

    M104 S{material_print_temperature} ; set extruder temp

    M140 S{material_bed_temperature} ; set bed temp

    M109 S{material_print_temperature} ; wait for extruder temp

    ...

    Edited by Guest
  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • UltiMaker Cura 5.3 stable released
        In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
          • Thanks
          • Like
        • 26 replies
      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 18 replies
      • UltiMaker Cura Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 22 replies
    ×
    ×
    • Create New...