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tandar

@tandar

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Joined 28 Oct 2021, 14:34 Last Online 9 Dec 2021, 12:04

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Latest posts made by tandar

  • RE: Kodama Trinus heated bed wiring help

    Thanks everyone - I'll try the suggested wiring.

    posted in Duet Hardware and wiring
    undefined
    tandar
    31 Oct 2021, 14:38
  • RE: Kodama Trinus heated bed wiring help

    Yes

    • When when Bed is first connected to the powered board; White/Green = 0v
    • When bed heat is turned on via Pango Console; White/Green = 5v
    • Bed starts to heat up. Red HEAT LED lights, the board is warmer to the touch, and the console reports rising temp

    62cc8ea9-05d0-495c-a051-cf74b5f5e1ea-image.png

    posted in Duet Hardware and wiring
    undefined
    tandar
    30 Oct 2021, 20:13
  • RE: Kodama Trinus heated bed wiring help

    @rjenkinsgb said in Kodama Trinus heated bed wiring help:

    at may be a PWM input, as black ap

    Robert - Thanks for the reply.
    Nothing happens with green grounded. And I'm not sure how to send 5v to green
    But...
    I've now got the board and bed on my bench connected to my PC.
    So I can control the board via the slicer and read voltages.
    When connected to the board and with Bed Heat OFF, the bed shows 12 v across Red/White and Red/Green
    When Bed heat is turned ON Red/Green shows 7 v.
    Does this tell you anything?
    cIMG_3728[1024].jpg
    I would just be happy to hack the Bed so that it comes on with power. I could then add a thermistor and use the duet to control temp

    posted in Duet Hardware and wiring
    undefined
    tandar
    29 Oct 2021, 20:51
  • RE: Kodama Trinus heated bed wiring help

    The LEDs do indicate temp level.
    I assume it's a 12v bed since the power supply is 12v.
    The old slicer (Pango) allowed for different bed temps so I again assume that there's some sort of temp temp sensor on the bed (?).

    A lot of assumptions I know!

    I know the safe thing to do is to get a new bed. But I wanted to avoid this since I can't find a replacement with the right 3 hole pattern and I'd have to craft one from scratch.

    So I'll explore this a little more and see if I can decipher what's going on. I'll let you know.

    [EDIT] FYI - When I connect Red/White to 12v, the green power light illuminates and the first 2 temp LEDs light up. Temp does not increase

    I was looking forward to driving this old printer with a new Duet but if it doesn't work out, I've got other uses for this great board.

    Your help is greatly appreciated

    posted in Duet Hardware and wiring
    undefined
    tandar
    29 Oct 2021, 15:12
  • RE: Kodama Trinus heated bed wiring help

    Zero luck on any datasheets/schematics for either the bed or the board that this was connected to. It's 5+ years old.

    There's resistance on 3 of the pairs

    Black/White 106k
    Black/Red 112k
    White/Red 6k

    BOTH Black/White and Black/Red decrease with heat.
    White/Red stays constant

    Can I assume
    Green/Red = Power
    Black/White = Thermistor?

    Thanks for the help!

    posted in Duet Hardware and wiring
    undefined
    tandar
    28 Oct 2021, 17:04
  • Kodama Trinus heated bed wiring help

    Hi.
    I’m adding a duet 2 to my old Kodama Trinus printer and I’m stuck on
    how to wire the Panowin Heated bed (if it’s even possible).
    There are 4 wires comming from the bed - black/green/white/red.
    Is it possible to wire this bed up to a duet? And if so, any thoughts on which leads are the thermistor?

    Thanks

    72396737-D7D9-4555-8834-35EF68BFE240.jpeg

    posted in Duet Hardware and wiring
    undefined
    tandar
    28 Oct 2021, 14:55
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