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    dragonn

    @dragonn

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    Best posts made by dragonn

    • IDEA - dynamic acl/jerk with S3D but settings stored in firmware

      I used long time with S3D post process to add M204 and M566 to change acl and jerk depending on the part of the print. But now I good an better idea, what about only using M98

        {REPLACE "; inner perimeter\n" "; inner perimeter\nM98 Pinner_perimeter.g\n"}
        {REPLACE "; outer perimeter\n" "; outer perimeter\nM98 Pouter_perimeter.g\n"}
        {REPLACE "; solid layer\n" "; solid layer\nM98 Psolid_layer.g\n"}
        {REPLACE "; infill\n" "; infill\nM98 Pinfill.g\n"}
        {REPLACE "; gap fill\n" "; gap fill\nM98 P gap_fill.g\n"}
        {REPLACE "; skirt\n" "; skirt\nM98 Pskirt.g\n"}
      

      Like that, now in firmware in sys you only need to create files like inner_perimeter.g and others and put desired commands into it.
      Advantages:

      • easier testing, I think it should be possible to adjust values even during printing
      • settings are independent from slicer, if you change it will apply to old g-codes too

      Not tested yet but I don't see why this shouldn't work.

      posted in Tuning and tweaking
      dragonn
      dragonn
    • RE: 24V PSU, 3V stepper motors

      Stepper motors are current driver, it is the work of the stepper-driver chip to chop the power-supply voltage so the current is at it adjusted value. When it is at it adjusted value the voltage on the stepper motor will be to at the proper value too.

      posted in My Duet controlled machine
      dragonn
      dragonn
    • RE: Temperature run away with new e3D Plated Cooper Heater Block

      You can make you own https://www.thingiverse.com/thing:2343612 they are even better because the original E3D sock sometimes falls off (I secure them with a wire).

      posted in General Discussion
      dragonn
      dragonn
    • RE: Recommendations for heater fuse and holder

      I think a quick blow can lead to false triggers. Last time when I bought a new heater I measured his resistance before powering it first time and it was 2-3 times lower then nominal but after powering it for 1-2s from a 12 supply it get up to the nominal value. In this scenario a quick blow could already trigger.
      I would install something like that http://www.optifuse.com/LargePhotos/LPX-04B-I_lg.jpg search for in-line fuse holder. And I would use an automotive fuse.

      posted in Duet Hardware and wiring
      dragonn
      dragonn
    • RE: Babystepping bug

      @jasperkm said in Babystepping bug:

      2.02 RC4

      I don't understand why people are running RC version firmware when stable version is already available.
      First troubleshooting step should be updating to the latest stable version.

      posted in General Discussion
      dragonn
      dragonn
    • RE: 24v fan on 12v power supply

      @arkadiusz It will work but you need to connect it ground to the 12V ground, both power supplies need to have common ground.

      posted in Duet Hardware and wiring
      dragonn
      dragonn
    • RE: Painfully slow WiFi on my board (sub BT speed - 700KiB/s)

      @vlad you old laptop has probably many megabytes of RAM or even a few gigabytes.
      DuetWifi have only 128 kilobytes of RAM, this is not just the same type of CPU. It is well suited for realtime tasks (like 3D printing) but doing fast data transfer it is weak spot. 700 kilobytes per second are quite good speed on such processor.

      posted in General Discussion
      dragonn
      dragonn
    • RE: Simplify3d + Duet2 wifi

      @bearer said in Simplify3d + Duet2 wifi:

      USB disconnects isn't going to be an issue with the virtual serial port, but i'll get onboard for the two last points, although computer never sleeps (negligible difference in idling with monitor off and actual sleep state, and doesn't break sockets)

      I wouldn't trust a virtual serial port too, computer network aren't designed for such critical things they have dynamic latency with can change depend on the network load and also sometime they can just drop packets. It is just a bad idea to live stream g-code from computer in any way.

      posted in General Discussion
      dragonn
      dragonn
    • RE: PanelDue firmware 1.22 released

      @brunofporto said in PanelDue firmware 1.22 released:

      Please, I would like to know how to install the PanelDue firmware from a Linux based machine.

      I could not find last time I updated and ended bringing the display home for the update.

      Thank you

      You just need to install bossa on you linux distrubtion, not sure what are you running exactly and then run:

      sudo bossac -p /dev/ttyACM0 -e -w -v -b ~/Pobrane/PanelDueFirmware-v3-5.0.bin 
      

      Where last part points to the downloaded firmware

      posted in PanelDue
      dragonn
      dragonn
    • RE: Reverse polarity of heater (peltier heating/cooling)

      I am curious for what are you going to use that peltier? It is only rated up to 80C, are you making a heatbed using peltier devices?

      posted in Duet Hardware and wiring
      dragonn
      dragonn

    Latest posts made by dragonn

    • RE: Hybrid direct bowden, how to set up?

      @solo3d I am doing something like that and using mixing hotends but they is a big problem with that - it is almost impossible to setup the steps/per mm or mixing ration perfectly right.
      I think the only solution would be that the bowden extruder uses rubber wheels some kind and pushes a litte bit faster then the direct extruder. When setup right it would just slip over the filament when they is no space to push it.

      posted in General Discussion
      dragonn
      dragonn
    • RE: heater cartridge degraded and "lost power"

      This can happen. Actually you are lucky, sometimes can happen that a heater gets a short and just burns out destroying fuses or cables/connectors with it.
      Just replace it.

      posted in Tuning and tweaking
      dragonn
      dragonn
    • RE: My wish : Inputs debouncing

      As I said in the case when using an event loop, you can not just stop in and loop for some cycles and do nothing in the time if you have other things with still need to run. So you need some extra variables for tracking that your are in a debounce state, for how long and when you started and check them in every loop.
      I am not saying it is hard, I wanted just to point out that probably is not a "5 minutes" job.

      posted in Firmware wishlist
      dragonn
      dragonn
    • RE: My wish : Inputs debouncing

      @BoA said in My wish : Inputs debouncing:

      And debouncing is not a rocket science to implement.

      That depends on you application architecture, many embedded system without RTOS use something like a simple event loop and implementing debouncing in isn't so simple as it sounds. RRF works on RTOS but it started without it so probably most of the system is a event loop.
      It can be of course done, they are many ways to do it. I just wanted to say that something simple from user stand point isn't often so simple in the software 😜

      posted in Firmware wishlist
      dragonn
      dragonn
    • RE: My wish : Inputs debouncing

      Could you just add a capicator parallel to the button?
      Sometimes the best solution is doing it in hardware

      posted in Firmware wishlist
      dragonn
      dragonn
    • RE: Stop Firmware Retract and Pressure Advance from Fighting

      @bot can you even use wipe while retract when doing firmware retract? I think not

      posted in Firmware wishlist
      dragonn
      dragonn
    • RE: Stop Firmware Retract and Pressure Advance from Fighting

      @oliof said in Stop Firmware Retract and Pressure Advance from Fighting:
      it does not add to my issue here.

      Ok but what exactly is the issue? Doing PA when doing retraction, what does it cause for you? Because like I describe in my opinion that by itself isn't an issue and shouldn't cause any problems.

      posted in Firmware wishlist
      dragonn
      dragonn
    • RE: Stop Firmware Retract and Pressure Advance from Fighting

      Based what are you say, that how it should work.
      PA is for compensating pressure build up in the hotend in different speeds.
      When PA would not do its move on retraction you would need different retraction length on different printing speeds. And I can confirm that effect exist on bowden and that is really important when having a full metal hotend where you can not just make the retraction longer at some point.
      I was having that issue that without PA when printing 3dbenchy the retraction worked perfectly fine up to the moment when the model cross-section goes small and the slicer slows down, then I would get clog up. With PA that is fine and I don't have to increase my retraction length so it clogs up because of full metal hotend.

      posted in Firmware wishlist
      dragonn
      dragonn
    • RE: Stop Firmware Retract and Pressure Advance from Fighting

      I use both of them and don't see a problem.

      posted in Firmware wishlist
      dragonn
      dragonn
    • RE: Direct drive extruder and Bowden extruder on one machine?

      @T3P3Tony what kind of trigger do you have in mind?

      I was something like that but didn't found yet how to actually do that.

      posted in General Discussion
      dragonn
      dragonn