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How to make a handbrake with a transducer *cheap*

Discussion in 'Sim Racing Hardware' started by TurtleDude, Dec 1, 2018.

  1. TurtleDude

    TurtleDude

    Messages:
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    Ratings:
    +3
    Video of the handbrake working:

    Get ready for abunch of spelling mistakes also lol

    Sketch for arduino (ty battlegear)
    https://cdn.discordapp.com/attachments/436312413185376266/516723774352261120/HandbrakeSketch.zip
    Things you will need:


    3/8 -24 inverted to 1/8 (dont get on ebay its really expencive i got mine at advanced auto parts):
    https://www.ebay.com/itm/Adapter-Fitting-1-8-Inch-NPT-to-3-8-Inch-24-IFM/261961244775?_trkparms=aid=111001&algo=REC.SEED&ao=1&asc=20160908105057&meid=cbc3c6e4cc374fd4b302009a789f4553&pid=100675&rk=11&rkt=15&sd=401426408114&itm=261961244775&_trksid=p2481888.c100675.m4236&_trkparms=pageci:b85c7cfa-f5a8-11e8-b692-74dbd180c10d|parentrq:6b7c3b521670ac1d368f7454fffbd996|iid:1

    1000PSI Transducer:
    https://www.ebay.com/itm/1000PSI-Pressure-transducer-or-sender-stainless-steel-for-oil-fuel-air-water-5V/352520852497?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

    Arduino pro micro:
    https://www.ebay.com/itm/Arduino-Pro-Micro-ATmega32U4-5V-16MHz-Replace-ATmega328-Pro-Mini-Leonardo-USB/382643300627?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

    Fluid reservoir:
    https://www.ebay.com/itm/FOR-7-16-20-THREAD-RACING-DRIFT-HYDRAULIC-HAND-E-BRAKE-FLUID-RESERVOIR-TANK-BLUE/401426408114?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

    Hydraulic handbrake:
    https://www.ebay.com/itm/Vertical-Hydraulic-Hand-brake-Drift-Track-Hand-Brake-Black-Lever-Gear-Locking/332745209900?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

    Arduino IDE
    Thread seal
    Soldering iron
    Flux
    Solder
    Micro USB Cable
    Case for arduino (optional)
    https://www.thingiverse.com/thing:3183768





    Let's get started

    The first thing we will do is put thread seal on all the fittings.
    when you are done with that put the screw that came with the reservoir on the reservoir and screws it in on the back of the handbrake
    20181129_220326.jpg
    Next, we will put the fitting on the Pressure transducer to do that put the screw on the transducer. To the female part of the fitting (if it doesn't fit it doesn't have to go all the way in just make sure it does not leak) and screw it in the handbrake
    20181130_213228.jpg

    Start adding brake fluid don't add it in all at once do one cap at a time and pull back the handbrake a few times to get it in if its too much take some out and have the cap on the reservoir whenever you want to try it




    when its a good amount of brake fluid, solder the wires to these connections on the pro micro it should look like this but better because im bad at soldering
    with this diagram 20181201_165238.jpg a.png

    when you are done open the file on the top and read the readme. Open HandbrakeSketch and do the following choose go to the top and do this on the top Tools>Board> Arduino Yun mini. and then go here Tools>Port>com8
    Under tools click the check mark and when that is done click the arrow pointing right. When it is done uploading close Arduino ide and press windows key and type "game controllers" choose Arduino Yun mini to go to properties and calibrate skip everything but throttle and when you are on throttle pull the handbrake until you can't do it anymore. Do not pull it back so far its uncomfortable to pull handbrake do it so its comfortable


    that's is it thank you for reading
     
    Last edited: Dec 9, 2018 at 16:35
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  2. callumjtc

    callumjtc

    Messages:
    87
    Ratings:
    +32
    Yes mate! Great to see you got it up and running, how does it feel to pull back on?
     
  3. TurtleDude

    TurtleDude

    Messages:
    8
    Ratings:
    +3
    feels really good it just depends on how much fluid you put in i got it perfect for me i just need a mount now haha
     
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