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Nicole Mich

HowStuffWorks "How Gear Ratios Work" - 2 views

www.howstuffworks.com/gears.htm

shared by Nicole Mich on 06 Dec 11 - Cached
  • The fact that one gear is spinning twice as fast as the other results from the ratio between the gears, or the gear ratio
  • Catherine Murphy on 06 Dec 11
     
    gear ratios....
  • ...1 more comment...
  • Richard Sgalia on 06 Dec 11
     
    Defines Gear Ratio
  • Thomas Heffernan on 06 Dec 11
     
    basic gear ratios, definition and shows how gear ratio is related to diameter
  • Nicole Mich on 06 Dec 11
     
    evan stole this from me...but it explains how the gear ratios work
Richard Sgalia

gear ratio: Definition from Answers.com - 3 views

www.answers.com/gear-ratio

shared by Richard Sgalia on 06 Dec 11 - No Cached
  • The gear ratio can be computed directly from the numbers of teeth of the various gears that engage to form the gear train.
  • Richard Sgalia on 06 Dec 11
     
    Look at the wikipedia section and it explains the gear ratio being computed
Vivek Iyer

HowStuffWorks "Understanding a Gear Ratio" - 3 views

auto.howstuffworks.com/gears1.htm

shared by Vivek Iyer on 06 Dec 11 - Cached
  • Vivek Iyer on 06 Dec 11
     
    Understanding the concept of the gear ratio is easy if you understand the concept of the circumference of a circle. Keep in mind that the circumference of a circle is equal to the diameter of the circle multiplied by Pi (Pi is equal to 3.14159...). Therefore, if you have a circle or a gear with a diameter of one inch, the circumference of that circle will be 3.14159 inches.
Alexander Sarkis

NXT Modular Test Vehicle (MTV) - 3 views

www.nxtprograms.com/...steps.html

shared by Alexander Sarkis on 06 Dec 11 - Cached
  • The Drive Wheels module is designed to make it easy to change the gears used so that you can experiment with different gear combinations.  Different combinations will result in different gear ratios, which will have a big effect on the speed and power of your robot.   The faster gear combinations will make the robot go faster but have less power, which will make it harder to turn and carry loads, and note that faster robots are also typically less accurate. 
  • Alexander Sarkis on 06 Dec 11
     
    tells u what each gear does
Carolyn Nascimento

NXT Gears and Gear Ratio - 13 views

jingshannxt.blogspot.com/...nxt-basic-lesson-6.html

shared by Carolyn Nascimento on 06 Dec 11 - No Cached
  • Alexander Sarkis on 06 Dec 11
     
    gear ratio
  • Carolyn Nascimento on 06 Dec 11
     
    good information on gear ratios
Timothy McNamara

The NXT STEP - LEGO® MINDSTORMS® NXT Blog: Computing gear ratios - 8 views

thenxtstep.blogspot.com/...computing-gear-ratios.html

shared by Timothy McNamara on 06 Dec 11 - No Cached
  • Nicole Mich on 06 Dec 11
     
    gear ratios of NXT
  • Timothy McNamara on 07 Dec 11
     
    computing gear ratios
  • Patrick Curley on 27 Feb 12
     
    good job
Thomas Heffernan

http://www.teamhassenplug.org/NXT/Gears/ - 5 views

www.teamhassenplug.org/Gears

gear

shared by Thomas Heffernan on 06 Dec 11 - No Cached
  • Thomas Heffernan on 06 Dec 11
     
    shows different gear ratios with actual pictures of our exact parts in the NXT kit
Leroy Good

NXT Hand Generator Car - 5 views

www.nxtprograms.com/...steps.html

shared by Leroy Good on 07 Dec 11 - No Cached
  • Hand Generator Car
  • Building Instructions
  • Make sure that the gray bushings on the outside of free-spinning axle are not pushed on too tightly, so that the axle can spin easily.
  • ...8 more annotations...
  • Use one of the longest wires to connect the two motors together
  • If you put gears on the crank, make sure you build it very strong (brace the gears on both sides), otherwise the gears will slip and grind, or you may break a peg or bend an axle.No matter what, crank smoothly and be gentle with your crank motor, you don't want to damage it!
  • Hold the crank motor firmly in one hand and crank smoothly with the other hand.  Important: Be smooth and gentle so that you don't stress the motor parts.  Notice that if you crank the other direction, the car will change direction too.  If you are left-handed, or if you want your car to go the other direction, you can switch the hand crank to the other side of the motor.   
  • Try using gears on the car (or possibly on the hand crank) to change the rotation speeds and see how this affects the speed of the car.  Here is an example of using gears to speed up the car, if you can figure out how to build it or make something similar.  
  • Using the Generator Car
  • Try some other designs for the car.  There are lots of possibilities. Does this generator trick give you any other ideas that you could use it for?  For example, if you had an NXT robot that used one motor powered by the NXT for something, you could power and control the speed and direction of something else by using a second motor powered by a generator from the third motor.
  • If you carefully note now much the car wheels turn for each rotation of the crank, you will notice that one full turn of the crank results in somewhat less than one full turn of wheel rotation.  This is because the electric generator is not 100% efficient.  There are some losses due to friction and other things.  For example, if the car wheels turned 270 degrees for each 360 degrees of rotation of the hand crank, then the generator would be 270/360 = 0.75 = 75% efficient.  Can you estimate the efficiency of your generator?
    • Leroy Good
      Leroy Good on 07 Dec 11
       
      DONT USE THIS CRANK LEVER it would be outside intervention
  • Leroy Good on 07 Dec 11
     
    How to make a car JUST DONT USE THE CRANK PART AND MODIFY IT other then that This will help you desighn the car!!!
Nicole Mich

Gear ratio - Wikipedia, the free encyclopedia - 5 views

en.wikipedia.org/Gear_ratio

shared by Nicole Mich on 06 Dec 11 - Cached
  • Nicole Mich on 06 Dec 11
     
    description of gear ratio
  • Patrick Curley on 27 Feb 12
     
    good job
  • Richard Sgalia on 27 Feb 12
     
    This really helps with gear ratios
Catherine Murphy

GEARS AND GEAR RATIOS - 11 views

www.weirdrichard.com/gears.htm

gears

shared by Catherine Murphy on 06 Dec 11 - Cached
  • INPUT SPEED:OUTPUT SPEED equals OUTPUT TEETH:INPUT TEETH
  • Catherine Murphy on 06 Dec 11
     
    its a really weird website but has some real nice info
Patrick Curley

Compound Gears - 2 views

www.technologystudent.com/...gears3.htm

shared by Patrick Curley on 04 Jan 12 - No Cached
Nicole Mich liked it
  • Patrick Curley on 04 Jan 12
     
    more info on compund gears
Dustin Scott

Gear and Wheels Part 1 - YouTube - 11 views

www.youtube.com/watch

gear ratios wheels

shared by Dustin Scott on 07 Dec 11 - No Cached
  • Alexander Sarkis on 07 Dec 11
     
    this is useful in helping choose what kind of gear ratio you want to use
Carolyn Nascimento

Shifting Gears: A Car with a Transmission(Lego Mindstorms NXT) - 5 views

tau.ac.il/...ShiftingGears

shared by Carolyn Nascimento on 06 Dec 11 - No Cached
  • Carolyn Nascimento on 06 Dec 11
     
    Shifting Gears
Oscar Rivera

Chart Gear Ratio - 5 views

www.4x4offroads.com/gear-ratio-chart.html

shared by Oscar Rivera on 06 Dec 11 - No Cached
    • Oscar Rivera
      Oscar Rivera on 06 Dec 11
       
      in this website you can find the formula of a new gear ratio, of a car, if your changing a old tire
Vivek Iyer

NXT® motor internals - 9 views

www.philohome.com/...nxtmotor.htm

shared by Vivek Iyer on 06 Dec 11 - Cached
  • Vivek Iyer on 06 Dec 11
     
    Background on the NXT motor..this could help finding an accurate gear ratio.
Alexander McGinnis

HowStuffWorks "How Manual Transmissions Work" - 1 views

auto.howstuffworks.com/transmission.htm

shared by Alexander McGinnis on 06 Dec 11 - Cached
  • Alexander McGinnis on 06 Dec 11
     
    Gear ratios for the rest of us.
Timothy McNamara

maze robot design - 7 views

alexandria.tue.nl/...626828.pdf

maze design robot google search sensor following data gear line nxt sensors wall

shared by Timothy McNamara on 02 Apr 12 - No Cached
  • Alexander McGinnis on 02 Apr 12
     
    A plethora of information relevant to the topic.
  • Thomas Buckley on 02 Apr 12
     
    So, it's a wall follower. That should be easy enogh.
  • Timothy McNamara on 05 Apr 12
     
    ideas
Timothy McNamara

Maze solving algorithm - Wikipedia, the free encyclopedia - 3 views

en.wikipedia.org/...Maze_solving_algorithm

maze solving algorithm encyclopedia wall data gear

shared by Timothy McNamara on 04 Apr 12 - No Cached
  • Alexander McGinnis on 04 Apr 12
     
    Obligatory Wikipedia reference.
  • Timothy McNamara on 04 Apr 12
     
    techniques
Alexander Sarkis

aMAZEing - 9 views

www.youtube.com/watch

sensor following robot sensors data wall nxt gear

shared by Alexander Sarkis on 04 Apr 12 - No Cached
  • Alexander Sarkis on 04 Apr 12
     
    shows what you can do with touch sensors in a maze... aMAZEing
  • ...3 more comments...
  • Colin Fair on 04 Apr 12
     
    helpful with a design suggestion for what your robot can look like
  • Vivek Iyer on 04 Apr 12
     
    you're not funny
  • Alexander Sarkis on 04 Apr 12
     
    thanks Curin MeAns a lot ZE
  • Richard Sgalia on 04 Apr 12
     
    That is quite impressive, I wish we had antenni so we could do this. Maybe the touch sensors can work in a similar way, but not that high in the air.
  • Nicole Mich on 04 Apr 12
     
    ya what he said!
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