Search the Community

Showing results for tags 'automatic gearbox'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Frontpage, Forum Information and General LEGO Discussion
    • Guest Section - PLEASE READ BEFORE YOU REGISTER!
    • Frontpage News
    • Forum Information and Help
    • General LEGO Discussion
  • Themes
    • LEGO Licensed
    • LEGO Star Wars
    • LEGO Historic Themes
    • LEGO Action and Adventure Themes
    • LEGO Pirates
    • LEGO Sci-Fi
    • LEGO Town
    • LEGO Train Tech
    • LEGO Technic and Model Team
    • LEGO Mindstorms and Robotics
    • LEGO Scale Modeling
    • LEGO Action Figures
    • Special LEGO Themes
  • Special Interests
    • The Military Section
    • Minifig Customisation Workshop
    • LEGO Digital Designer and other digital tools
    • Brick Flicks & Comics
    • LEGO Mafia and Role-Play Games
    • LEGO Media and Gaming
  • Eurobricks Community
    • Hello! My name is...
    • LEGO Events and User Groups
    • Buy, Sell, Trade and Finds
    • Community
    • Culture & Multimedia

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


What is favorite LEGO theme? (we need this info to prevent spam)


Which LEGO set did you recently purchase or build?


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Location


Interests


Country


Special Tags 1


Special Tags 2


Special Tags 3


Special Tags 4


Special Tags 5


Special Tags 6


Country flag

Found 4 results

  1. Hi All, Here's a video I did on optimal gear switching ratios for PF motors. A formula presented relating the power operating point as a percentage of peak power. From this an operational power range band is defined based on maintaining a power efficiency of at least E percent. From this, optimal switching points relative to the motor torque are derived and the correct gear switching ratio determined. These are presented as formulas and graphs. The peak torque and power points are shown for Lego technic PF medium motors, Lego Techinc PF Large Motors and Lego Technic PF XL Motors.
  2. This video is about putting a 2 speed automatic gearbox in a test car and seeing if it will go up a steep ramp. I am not a car designer so very minimal detailing.
  3. Hi all, the instructions for an MOC automatic gearbox that I made a while ago are now available on Rebrickable. https://rebrickable.com/mocs/MOC-48521/TechnicBrickPower/3-speed-automatic-gearbox youtube video on how it works: :
  4. Here's my 3 speed automatic gearbox MOC. The gearbox automatically switches between one of 3 gear ratios, namely a ratio of 1, 1/3rd and 1/9th depending on the load on the output. It uses two 2 speed automatic transmissions in series to create the three speed automatic gearbox. It works on the principle of 2 degrees of freedom within a pair of differentials. This creates two gear paths for the transmission of force and the path of least resistance is taken. The loading points at which this lego gearbox switches gears is adjustable via two linear actuators at the bottom of the gearbox, which adjust the amount of artificially introduced friction to control the switch over points. Hope you like it.