barcode labs

    3d printer tool head pcb

    barcode labs

    3d printer tool head pcb

    icon
    This is a work in progress and subject to change.

    the problem

    I really dislike most wiring solutions around 3d printer tool heads. I have tried connectors, pcb boards, and direct wiring harnesses. Each of these solutions has some advantages and disadvantages

    learning to design pcb boards

    Fortunately for me this design is very straight forward. I am going to dive in and mess it up a few times to learn.

    reference videos

    requirements

    input

    PCB
    MCU
    Wire Gauge
    24V
    HE0 +V
    20
    HE0
    Hotend Heater -V
    20
    GND
    PSU -V
    24
    PROBE
    Probe Signal
    24
    PCF
    Parts Cooling Fan -V
    24
    HEF
    Hotend Cooling Fan -V
    24
    TH0
    Hotend Thermistor Signal
    24
    AGND
    Hotend Thermistor -V
    24
    S1A
    24
    S2A
    24
    S1B
    24
    S2B
    24
    XES
    X End Stop
    24
    FS
    Filament Sensor
    24

    output

    Output
    Input
    HE0
    HE0
    HE0
    24V
    Output
    Input
    TH0
    TH0
    TH0
    AGND
    Output
    Input
    HEF-
    HEF
    HEF+
    24V
    Output
    Input
    PCF-
    PCF
    PCF+
    24V
    Output
    Input
    GND
    GND
    PRB
    PROBE
    24V
    24V
    Output
    Input
    GND
    GND
    XES
    XES
    Output
    Input
    GND
    GND
    FS
    FS
    Output
    Input
    S1A
    S1A
    S2A
    S2A
    S1B
    S1B
    S2B
    S2B

    attempt 1

    The goal with this attempt is to familiarize myself with the tools and process, not to create a finished or working product. I mostly care about finding the right components and being able to manipulate them. I will work on what connections actually have to be made later.

    image
    image

    attempt 2

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    image

    attempt 3

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    image
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