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  1. #1

    Adding BL Touch to AnyCubic Kossel Linear Plus

    So I've got an ANyCubic Kossel Linear Plus that I'm trying to get going with a newer build of Marlin and a BL Touch sensor. So far I've got the following resources located:



    https://www.reddit.com/r/3Dprinting/...touch/dryrbox/


    https://github.com/emilio1625/Anycub...e/kossel-1.1.x


    https://cdn.thingiverse.com/assets/5...ic_I3_Mega.pdf


    https://learn.sparkfun.com/tutorials...o-tutorial/all

    My question for everyone is this: According to the last two diagrams, the engineers that designed/laid out the TriGorilla controller board reversed the +5v and GND pins on the servo connector. All the docs seem to agree but I'm just having a hard time believing such a simple oversight was really made by people with the resources to manufacture this board.Can anyone confirm that the TriGorilla folks really did this?

    Am I reading the info wrong?

    Swapping the wires is easy but I'd hate to let the magic smoke out of anything when I'm so close ....

    The labelling on the BL Touch sensor says it's wired 'properly' according to all the specs I can find on RC servos.
    Last edited by Tweedle; 09-23-2019 at 09:53 AM. Reason: Fixing links

  2. #2
    Engineer-in-Training
    Join Date
    May 2018
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    223
    Quote Originally Posted by Tweedle View Post
    All the docs seem to agree but I'm just having a hard time believing such a simple oversight was really made by people with the resources to manufacture this board.
    That is too funny.. what about this mistake http://www.cnn.com/TECH/space/9909/30/mars.metric.02/

  3. #3
    Quote Originally Posted by airscapes View Post
    That is too funny.. what about this mistake http://www.cnn.com/TECH/space/9909/30/mars.metric.02/
    Well the TriGorilla board is a mass produced part. The JPL thing was a one-of-a-kind deal, but yeah mistakes happen. I'll measure the voltages before I wire it up to see what's going on in any case.

  4. #4
    I have a 32 bit BIQU SKR v1.3 board here as well, just checked it, the 'servo' connector is labelled the same as the TriGorilla. Did the robotics community decide on a servo pinout that's different from a standard RC servo pinout or am I just seeing this crosseyed?

  5. #5
    OK, in some spare time last night I did more looking, and it seems there are two 'standard' ways to wire RC servos, the way we do it now and in the old days, the "Airtronics" way. The now mostly defunct "Airtronics" standard matches what I'm seeing on these boards. I feel better, but I'll still measure before connecting of course.

    Source: http://fatlion.com/sailplanes/servos.html

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