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  1. CritchAutomotive

    Why position a brake caliper in front or behind the disc?

    Good day people, I am wondering if anyone can tell me the science or engineering (other than the obvious cooling and contamination prevention reasons) of positioning a brake caliper (either front or rear) behind or infront or above the brake disc? Any help in this curious matter would be very...
  2. CritchAutomotive

    Automated door opener

    There was no reason for this except I have never seen it done (I assume due to refinement, mechanisms and a lump of electronic control), most automatic openers are spring loaded opening and push shut (ie ashtrays etc) but this requires precise manufacture which would be expensive and difficult...
  3. CritchAutomotive

    Automated door opener

    I would strongly advise against using an electric motor, instead use an air ram (you will require a pump and regulator) the only problem is shutting, if you require automatic shutting (generally it would be easier to push it shut) you may need to explore the spring tensions with an adjustable...

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