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ZipZap

@ZipZap

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Joined 12 Aug 2020, 09:47 Last Online 20 Mar 2022, 19:22

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Best posts made by ZipZap

  • RE: LED Board

    I had a similar idea last winter: Imagine, having about 25 different PWM sections in the Nano and using it to not only control LEDs in different modes, but also relays and other stuff in some fashion of a sub-program.

    It's no competitor for the developing system using meta-commands and variables, but could be useful to trigger a lot of stuff with just one PWM-output of the Duet.

    /Julien

    posted in My Duet controlled machine
    undefined
    ZipZap
    13 Mar 2021, 12:29
  • RE: Duet 2 WiFi - wich expansion pins as GIPO?

    @chimaeragh

    Tbh i dont see any isolation on this board aside the "isolation of load and control area" via the relay itself.
    You have some flyback diodes on the control side but thats it. the black thingys are just transistors. You could put some 3V3 on the VCC pin, but that has to be at least 500mA or so because it is used to drive the coil of the relay. DO NOT try to drive this board with the IO-pins itself, the current draw is too high.

    If you want real opto-isolation (which is preferable), you should use a board like this one:

    Relay-Module-2-x-5V.jpg

    Keep you eyes open for the bulky black boxes with two terminals on each side. Those are the optocouplers.

    Greetings from sunny germany,
    Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    13 Mar 2022, 21:35
  • RE: Finding out names of parameters and variables

    @OwenD said in Finding out names of parameters and variables:

    Changed example to use M190

    And this was the point.
    Your adaption of M190 doesn't work, but: I figured out a solution.
    Taking the subtraction into a seperate variable makes it work. I think, you can't calculate inside a G or M-Command.

    Thanks a bunch to you guys, now i know the syntax, and how to get the parameters and declaring and using variables.
    It would be very helpful, if i wouldn't have overlooked the G-Codes in the Dozuki and the very good PDF-Manual, that is pinned on top of this category (my bad)...

    Here is my working example:

    while (heat.heaters[0].active > 60) && (heat.heaters[0].current > 60) && (heat.heaters[0].state = "active")
    	var cooltemp = {heat.heaters[0].active}
    	set var.cooltemp = var.cooltemp -1
    	M190 P0 R{var.cooltemp}
    	echo "wait"
    	G4 S60
    echo "cooldown finished"
    

    I will expand upon it and make it more versatile, ex. add in a real cooldown funktion, that works for ABS.

    Edit: Oh yeah, and i had to update everything to 3.3RC2 or course.

    posted in Gcode meta commands
    undefined
    ZipZap
    13 Mar 2021, 11:02
  • RE: Designing a PWM to Analog mini board for fans

    @fcwilt said in Designing a PWM to Analog mini board for fans:

    You asked for a PM but I don't know what that is.

    PM = personal message, so just chat

    /Julien

    posted in Tuning and tweaking
    undefined
    ZipZap
    11 Mar 2021, 13:13
  • RE: Duet 2 Wifi - pin names on expansion header

    @alankilian

    According to the documentation the fuse should be intact, because all other temps are working properly.

    Why could it read open circuit?

    Stupid me has had a connection issue, where i had the sensor between, VSSA and VAREV and the pullup between VSSA and input7...

    Everything is working fine now, thanks a bunch alan!

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    1 Apr 2021, 20:26
  • RE: Reading Input Pin States for Conditional GCode

    @tenaja
    The name of the endstop doesn't change, no matter what is connected to it.
    You can look all the (with the current config.g) addressable parameters and variables under

    • settings, then
    • general, then
    • Built-In-Plugins

    There you have to activate the object model browser plugin. After that, it appears under the settings-tab.

    /Julien

    posted in Gcode meta commands
    undefined
    ZipZap
    19 Mar 2021, 23:04
  • RE: Designing a PWM to Analog mini board for fans

    @Egon-Net said in Designing a PWM to Analog mini board for fans:

    Anyone wants to betatest a board from this first batch once arrives?

    ✋

    posted in Tuning and tweaking
    undefined
    ZipZap
    12 Mar 2021, 18:34
  • RE: 3x Duet 2 Ethernet SBC Adapter to sell (Germany only!)

    Meine Platine ist angekommen, sieht wirklich ordentlich aus.

    /Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    7 Apr 2021, 06:49
  • RE: Designing a PWM to Analog mini board for fans

    @egon-net

    Still testing, should be ready tomorrow or wednesday.

    posted in Tuning and tweaking
    undefined
    ZipZap
    19 Apr 2021, 20:44

Latest posts made by ZipZap

  • RE: Duet 2 WiFi - wich expansion pins as GIPO?

    @chimaeragh

    Tbh i dont see any isolation on this board aside the "isolation of load and control area" via the relay itself.
    You have some flyback diodes on the control side but thats it. the black thingys are just transistors. You could put some 3V3 on the VCC pin, but that has to be at least 500mA or so because it is used to drive the coil of the relay. DO NOT try to drive this board with the IO-pins itself, the current draw is too high.

    If you want real opto-isolation (which is preferable), you should use a board like this one:

    Relay-Module-2-x-5V.jpg

    Keep you eyes open for the bulky black boxes with two terminals on each side. Those are the optocouplers.

    Greetings from sunny germany,
    Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    13 Mar 2022, 21:35
  • RE: Duet 2 WiFi - wich expansion pins as GIPO?

    @droftarts

    This is just awesome!
    The current of the pins should pose no real problem, since the inputs of the relayboards are conneted via isolators - i just need to check, if 3V3 is sufficient.

    I will give an update, when i did the wiring.

    /Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    4 Mar 2022, 14:48
  • RE: Duet 2 WiFi - wich expansion pins as GIPO?

    Sorry for the late reply.

    @droftarts

    Yes, i only need IOs for relays, so no PWM.
    The documentation said that every other pin (for ex. endstops) are just inputs? If they could be configured as outputs, than its easy game.

    Would you be so kind to point out which pins can be used as outputs (for relays) and how to configure them? That would be a huge help.

    /Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    26 Feb 2022, 15:51
  • RE: Duet 2 WiFi - wich expansion pins as GIPO?

    @droftarts
    Well, thats too bad (for now).
    So I2C-expander it is, for the next project.

    Thanks for the useful information.

    /Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    18 Feb 2022, 19:02
  • Duet 2 WiFi - wich expansion pins as GIPO?

    My dearest co-printers, i have a (maybe simple) question:

    Which pins on a Duet 2 WiFi expansion-header can be used for GIPO-pins?
    Of course its the remaining five heaters (no probs there). I need up to 8 additional pins for controlling relays. Is it possible to use the EN-pins of the unused extruders?

    If yes, please help me with the definition of the following. How do i clear and redefine an extruder pin correctly?

    M950 P8 C"^exp.e5_en"										; printstate red
    

    Many thanks in advance and greetings from stormy gemany,
    Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    18 Feb 2022, 15:32
  • RE: Wavy surface problem.

    I don't think its ringing either.
    Can you measure the pitch of the waves? If it matches the pitch of your belt, then this is a possible cause.
    I had a similar issue, until i switched to genuine GATES-belts. Chinese belts seem to always be a little off regarding the profile of the teeth.

    /Julien

    posted in Duet Hardware and wiring
    undefined
    ZipZap
    10 May 2021, 20:24
  • RE: Bed plate with flatness tolerances <0.2mm

    @techni

    Hmm...
    I think 0.4mm (total tolerance) per meter is pretty good for a plate of about 5-8mm thickness. Adding up to this comes the tension in the plate due to heating up bottom to top and the tension due to thermal expansion while being fixed on standoffs. Depending on your standoff-positioning you could deform the bed if you use more than 3 screws. There is also the deformation due to its own weight...

    Did you contact clever3D and ask for a thicker plate? For everything over 300mm per side i think the plate must be ticker than the usual 8mm - should be more like 10-12mm.
    Have you measured your bed with a BL-Touch for example? How is the heightmap looking?

    /Julien

    posted in General Discussion
    undefined
    ZipZap
    24 Apr 2021, 19:24
  • RE: Bed plate with flatness tolerances <0.2mm

    @techni

    Feel free to contact Clever3D.
    They are from germany (my homeland) and specialize in Heatbeds. They could also arrange a suitable heating mat if desired.

    /Julien

    posted in General Discussion
    undefined
    ZipZap
    22 Apr 2021, 11:55
  • RE: Designing a PWM to Analog mini board for fans

    Bummer.
    I have another circuit (@Egon-Net for the big fan), which should have a ripple around 30mV.
    It shows me a ripple of 28V... i think my oscilloscope is not working right.

    I have a replacement in delivery, so i should be able to make all my desired measurements around the weekend. Sorry for the delay.

    /Julien

    posted in Tuning and tweaking
    undefined
    ZipZap
    22 Apr 2021, 06:59
  • RE: Designing a PWM to Analog mini board for fans

    @egon-net

    Still testing, should be ready tomorrow or wednesday.

    posted in Tuning and tweaking
    undefined
    ZipZap
    19 Apr 2021, 20:44
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