robot design lessonarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...you will put stress on the...
TRANSCRIPT
![Page 1: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/1.jpg)
By Sanjay and Arvind Seshan
Basic Building Techniques for LEGO Robots
ROBOT DESIGN LESSON
![Page 2: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/2.jpg)
ARE YOU NEW TO TECHNIC?
• This lesson is an introductory lesson to common technic pieces
• This lessons does not cover every Technic part. It is just an introduction to commonly used parts in MINDSTORMS robots
© 2016 EV3Lessons.com, Last Edit 8/27/2016 2
![Page 3: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/3.jpg)
LIFTARMS
• Liftarms come in various sizes from 2M to 15M length
• Technic is measured in Modules (M)
• The number of holes corresponds to the Modules
© 2016 EV3Lessons.com, Last Edit 8/27/2016 3
1M 1M
7 Modules = 7M
2M3M
5M7M
9M11M
13M15M
![Page 4: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/4.jpg)
TEST: MAKING SOMETHING LONG
© 2016 EV3Lessons.com, Last Edit 8/27/2016 4
• What if you want to build something long• Build both models below. Which one is stronger?
![Page 5: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/5.jpg)
LIFTARMS – ANGLES
• Don’t force LEGO into angles they are not meant for. You will put stress on the liftarms and the pegs
© 2016 EV3Lessons.com, Last Edit 8/27/2016 5
4X290 degrees
T-beam3X3
4X390 degrees
Angle4X4 Angle
4X2Angle3X7
Double Angle3X7These beams all have a
53.1° angle. This angle makes 3:4:5 right triangles like this one.
![Page 6: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/6.jpg)
TECHNIC PEGS
• LEGO makes two type of pegs: With Friction and Frictionless pegs
• A common mistake is to use either peg in builds
• However, which peg you use does matter!
© 2016 EV3Lessons.com, Last Edit 8/27/2016 6
FL – FrictionlessWF- Friction
WF FL WF FL
WF FL
FL FLFL
![Page 7: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/7.jpg)
TECHNIC PEG TEST
• Build both these models. One uses a black peg with friction and the other uses the grey frictionless peg
• What is different?
© 2016 EV3Lessons.com, Last Edit 8/27/2016 7
WF FL
![Page 8: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/8.jpg)
FRAMES
• Open frames and H- frames can add strength to your builds without as much weight
© 2016 EV3Lessons.com, Last Edit 8/27/2016 8
![Page 9: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/9.jpg)
FRAMES TEST
• Build each of these.
• Compare them for weight and strength
• Try to pull the pieces apart. Which one stays together the best?
© 2016 EV3Lessons.com, Last Edit 8/27/2016 9
![Page 10: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/10.jpg)
CHANGING DIRECTIONS
© 2016 EV3Lessons.com, Last Edit 8/27/2016 10
• These connectors can be used to change directions
• You might sometimes need to be a ½ module off. Some of these connectors can come in handy for this.
![Page 11: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/11.jpg)
AXLES
• Axles come in lengths of 2M to 32M in various colors
• The MINDSTORMS set generally has black, red (2 length), and grey axles, but newer technic sets are changing to all red and yellow
© 2016 EV3Lessons.com, Last Edit 8/27/2016 11
16
32
12
109
87
654
32
![Page 12: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/12.jpg)
AXLE CONNECTORS
• Axle connectors come in various angles. Many of them are labeled with a number
• Don’t force LEGO into angles they are not meant for. You will put stress on the axles and connectors
© 2016 EV3Lessons.com, Last Edit 8/27/2016 12
1 2 3 4 5 622.5° 45° 67.5° 90°
![Page 13: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/13.jpg)
AXLE TEST
• Sometimes, shorter axles with connectors are a lot stronger than one long axle
• Construct both builds below. Try bending/twisting them. Which one is stronger?
© 2016 EV3Lessons.com, Last Edit 8/27/2016 13
12 length axle
Three length axles with connectors
![Page 14: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/14.jpg)
BUSHINGS
• Bushings can come in very handy
• They are used in axles like a space holder
© 2016 EV3Lessons.com, Last Edit 8/27/2016 14
![Page 15: ROBOT DESIGN LESSONarchive.ev3lessons.com/web/ev3lessons-v4.9.0/...You will put stress on the liftarms and the pegs. © 2016 EV3Lessons.com, Last Edit 8/27/20165. 4X2 90 degrees T-beam](https://reader035.vdocuments.us/reader035/viewer/2022071500/611ef3a7f55e8d142f42f827/html5/thumbnails/15.jpg)
CREDITS
• This tutorial was created by Sanjay Seshan and Arvind Seshan• More lessons at www.ev3lessons.com
© 2016 EV3Lessons.com, Last Edit 8/27/2016 15
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.