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Tutorial DIY 3D printed Sim Racing Hydraulic pedals SRT

Discussion in 'DIY peripherals' started by Lebois, Jan 26, 2020.

  1. ibohan00

    ibohan00 New Member

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    I decided to test the CNC pedal using wood first. Good thing I did because it somehow didn't come out right. Possibly user error. I'll try again tomorrow.
    Most of the parts I ordered arrived today except for the banjo adaptor and gaskets. I'm getting excited!
    IMG_20201013_124129.jpg IMG_20201013_121820.jpg IMG_20201013_200958.jpg
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  2. Lebois

    Lebois (maybe I am wrong, but who knows...)

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  3. ibohan00

    ibohan00 New Member

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    I finally got the banjo adapter. Unfortunately the MC that comes with the 2 cylinder caliper uses a 10mm x 1.25 thread and the banjo adapter uses 10mm x 1..
    I'm thinking the easiest thing would be to order another adapter and wait another 2 weeks for shipping unless someone has a better idea?
  4. Lebois

    Lebois (maybe I am wrong, but who knows...)

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    The banjo adapter needs to be mounted on the slave cylinder.
  5. ibohan00

    ibohan00 New Member

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    I just checked the slave cylinder (brake caliper) and it looks like that also uses an M10x1.25 thread.
    What's the reason for not having the banjo adapter on the MC side?
    Last edited: Oct 19, 2020 at 02:33
  6. Lebois

    Lebois (maybe I am wrong, but who knows...)

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    The master cylinder and pressure sensor are both using imperial threads, consequently we can find easily adapters.
    Find an imperial to metric adapter is near of impossible...

    On top of that, I didn't want to have the brake calipper moving everywhere and pulling on the sensor cable.
  7. ibohan00

    ibohan00 New Member

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    The company that sells the adapter also sells imperial to metric sizes
    https://ebay.us/ZWL9YM - M10x1.25 to 1/8 NPT
    https://ebay.us/JIYkci - M10x1.0 to 1/8NPT

    My problem was that I ordered the M10x1.0 assuming that was the correct thread pitch for the 10mm banjo. It's actually M10x1.25.

    I agree the sensor would be best on the master cylinder
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  8. Lebois

    Lebois (maybe I am wrong, but who knows...)

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    Well, it's not perfect either. The sensor is quite high, and comes quite near of the lever. It's not touching, but...
  9. 7HUND3R

    7HUND3R Active Member

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    Can you put a picture of how the banjo is threaded? it did not screw me at all but with Teflon it does not lose liquid.
  10. ibohan00

    ibohan00 New Member

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    The thread pitch is the spacing between each thread. If your parts fit together then they're the correct size. A banjo with a 1mm thread pitch won't physically fit into a 1.25mm pitch hole.
    Here's a picture of what my M10 x 1mm banjo looks like.
    IMG_20201020_132734.jpg

    I see. My master cylinder has the banjo in the back, so I don't think I'll have the same issue. I see a few people make their pedals using plates and I might be able to design something with clearance for the wires. How close is the pedal getting to the wires?
    IMG_20201020_132843.jpg
  11. 7HUND3R

    7HUND3R Active Member

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    I have no problem with the pedal, it does not touch the sensor cables. What difference is there between putting the pressure sensor on the brake caliper versus putting it on the master cylinder?

  12. Lebois

    Lebois (maybe I am wrong, but who knows...)

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    @7HUND3R no major difference. I prefered to mount it on the MC because the brake calipper is not necesseraly fixed, and I didn't want the brake calipper pulling on the sensor cable.