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Pakos

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Posts posted by Pakos

  1. So i am repairing one of my old 3D Printers ultimaker 2.

    And i saw that the Potentiometer has broken off, lost the potentiometer, So i need a new one.

     

    But there are too many different kinds of Potontiometers on the market. 

    So i was wondering which kind of potentiometer i need. 

     

    In the picture below(press the link) you can see what i mean. The green part i am gonna desolder and solder a new whole potentiometer.

    But i cant seem to find a compatible potentiometer by my self. So can some one help me with finding one?

     

    Picture of pcb

     

    By the way, the potentiometer needs to click to select, and to scroll through the menu... And if someone can find one on Aliexpress or the type/brand. Please let me know.

  2. Hi,

    Ik vroeg me af of ik "dual extrusion" ook los van elkaar kon gebuiken met de volgende setup:

    Ultimaker 2:

    3mm fialiment setup met een 0.4mm nozzle aan de linkerzijde.

    1.75mm fialiment setup met een 0.2mm nozzle aan de rechterzijde.

    Bedoeling is dat ik beide nozzles los van elkaar wil gebruiken. Dus ene moment 0.4mm en erna andere print met 0.2mm.

    Ik snap dat er meer werk aan zit dan slechts vragen. Maar ondersteunt cura dit? En is er firmware op het net die deze ook ondersteunt? Etc?

    Mvg,

    Skander

  3. Hi there i am in search for an alignment tool for the axis ultimaker 2.

    I have come across some tools, but they were in stl format. But the only printer i have is broken down.

    So i need a dxf or dwg format, then i can cut the tool out of wood with a laser cutter machine.

    Any one have a file for that?

  4. Hello,

    I am in search for a cheap alternative of the Y Axis stepper motor.

    This is the serial number of the broken one: SY42STH38-1684A

    I have been doing some searching of my own on the internet but without any luck.

    I have come across some Nema 14 or 17 Stepper motors, but since there are so many types of them.

    I don't know which one to choose. Can someone put a link here?

    Thanks

  5. 200 dollars? You should be able to get one for free - isn't it covered by warranty?

    Yes you can change the firmware - the easiest might be to change it in pins.h - swap the pins for the 2 sensors there and rebuild.  I've rebuilt the firmware many times not so hard.  I posted instructions earlier in this thread.

     

    Ok this is what i did.

    Opened up Ardiuno -> Marlin.

    From there i went to PINS.H underneath board ==  72

    And made those changes @neotko told me.

    Compiled it, and uploaded it to my "Ultimaker 2 White" through a cable with no trouble.

    Then i switched the Temp 3 cable to Temp 2.

    That's what i should have done right?

    I did that, but the error is still there.

    Did i forgot something?

    What's an hex file?

    I read somewhere that after compiling the firmware, it should popup me the location of an hex file? But it didn't..

  6. Search motherboard 72? Or 78 I can't remember now. Just edit the pins.h and swap the pins of the heat sensors. I have many firmwares compiled for that but on umo+.

    It's quite easy and fast to change it.

     

    Swap the pins to where? You mean after i make those changes in the firmware.

    I have to switch the temp 3 cable to temp 2 right?

  7. The error you are seeing implies that the printer can not see the temp sensor at all.  If you measured the resistance undereneath the printer at the end of the cable, and if the wires seem okay, then I would replace the PCB.

     

    What you told is indeed correct. Except for the part that the PCB has to be replaced.

    I have been told that I can use temp 2 instead of temp 3.

    But in order to do that, i have to make some changes in the firmware first.

    Isn't it worth to try that? before jumping to conclusion that it's broken and to buy a new pcb with an price tag of 200 dollars?

  8. You can indeed switch to a different heater.  You need only edit configuration.h I believe.  It should be simple as it is heavily commented (that file is probably 90% comments).  Possibly you have to instead edit pins.h or the advanced configuration but most likely just Configuration.h.

    source files (I strongly recommend tinkergnome version):

    tinkergnome (UM2 marlin):

    https://github.com/TinkerGnome/Ultimaker2Marlin/releases

    Ultimaker2 marlin source:

    https://github.com/Ultimaker/Ultimaker2Marlin

    Then you need to build Marlin.  There are instructions that come with the erik zalm download in the "README.md" text file.

    Basically you download and install arduino ide:

    http://arduino.cc/en/main/software

    Then copy the sanguino software as explained in README file.  Open Marlin.ino file in Arduino IDE by double clicking it (not pde file as stated in README - I think that's old).  Select board as "Mega 2560" as explained in README file.  Go to "file" "preferences" and select "verbose output" so you can find your hex file.  Then build it by clicking the check box in the upper left corner.  At the bottom you will see it compiling Marlin.  At the end of this it says where the hex file is.  If you are currently connected to your UM through USB you can just click "file" "upload" and you are done!  But you should locate that hex file and save it somewhere along with the Configuration.h file used to create it so you can recreate the same version with maybe one change.  Also you can upload the hex file using Cura in expert menu.

    The actual ultimaker firmware is built with make file and doing it that way generates a smaller more compact firmware but doing it through the IDE works fine.  I've done it many times.

     

    I have installed the software, and downloaded Marlins firmware and opened up the configuration.h and pins.h files.

    I could only figure out that some things in those files were related to the bed and sensors.

    But still i couldn't figure out what settings I need to change and should be replaced with ?

    There are just to many lines of codes..

  9. First of all - "temp bed sensor" - doesn't that happen immediately on power up?  How could you possibly heat the bed if you have this error - this is the most confusing part of your problem.

    The sensor should measure about 108 ohms (anywhere from 100 to 115 ohms is close enough to avoid the temp bed sensor error).  did you ever check that?  If you get this error part way through a print then some wire is probably not a good connection - I would replace the wires.  The most common failure is on the board itself - the solder connection between the screw terminal block and the board.  Try pushing and pulling on every connection (wires, connector block, temp sensor itself, twist the board a bit) to see if you can get it to jump from 108 ohms to an open (millions of ohms).

     

    Indeed the error showes up on startup. And honestly i have no idea why the bed is heating up. For me it is an strange thing too.

    Anyway, i checked the board it showed me 110 ohms at 20C room tempature.

    I have even replaced the bed board and cables for sure. The error still showed up.

  10. If i may, i don't think that the part which is burned down has anything to do with the Error showing up.

    Anyway i have been told, that i can switch the "Temp 3" cable to "Temp 2" at the PCB board.

    But doing that, would require me to make changes first to an Custom firmware.

    And unfortunally i don't have any idea where i can download an custom firmware suitable for my Ultimaker 2. And the most important i don't know how to make those changes in the firmware either.

    Is there any "how to guide" for making those changes in the custom firmware?

    Any website/tutorial?

  11. Hello Members of Ultimaker.

    My 3D printer gave me the following error: Temp bed sensor.

    I have already switched the bed plate with an new one.

    No luck.

    I have checked the bed sensor cables visually and measured the continuity.

    So the cable and bed seems to be oke.

    I opened up the bottom plate where the PCB is located.

    And saw that the solder joints were bad, so i resoldered them.

    Then i tried to switch the TEMP 1 & 3 cables. And still no luck.

    EDIT: I just tried to update the firmware. It updated correctly.

    But the error still shows up.

    Note: The bed is heated up, while the 3d printer is on but not printing?

    Then i found this and took some pictures of it and posted them here below..

    Can this be the cause of the error?..

    And does someone know which part is burned down and if it can cause the system show up the error.

    2h80l5z.jpg

    24cefxl.jpg

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