LEGO MINDSTORMS - Building Robots part 6 ppt

... discontinued the pro- duction of air-powered models. Fortunately, LEGO pneumatic devices have been recently reissued in a specific service pack (#5218) available through Shop-At- Home or at the LEGO Internet ... not have LEGO pneumatic parts, or you don’t have room on your robot to fit a pneumatic compressor plus a pressure switch and some motor-driven valve switches.We’ve seen that RCX-t...

Ngày tải lên: 10/08/2014, 04:22

... Writer 455 Building the Writer 455 Programming the Writer 462 What to Write 462 Variations 463 Further Suggestions 464 Copying 464 Emulating Handwriting 464 Learning by Example 465 Summary 465 Chapter ... 27 Hand-to-Hand Combat 525 Introduction 5 26 Building a Robotic Sumo 5 26 Setting the Rules 527 Design Other Useful Robots ■ Alarm Clock ■ Baby Entertainer ■ Pet Feeder ■ D...

Ngày tải lên: 10/08/2014, 04:22

... some exam- ples of what can be done with them, our assumption being that you continue to use LEGO parts to build your robots, and the RCX to run them; thus, we’ll dis- cuss the use of non -LEGO sensors ... motor to fight it! Building a Skid-Steer Drive A skid-steer drive is a variation of the differential drive. It’s normally used with tracked vehicles, but sometimes with 4- or 6- wh...

Ngày tải lên: 10/08/2014, 04:22

... body partly studs front, partly studs right, and partly studs up (see Figure 16. 19). www.syngress.com Figure 16. 17 Rear View of the Skier Figure 16. 18 Bottom View of the Skier 174 _LEGO_ 16 10/29/01 ... point. www.syngress.com 174 _LEGO_ 16 10/29/01 4:22 PM Page 330 324 Chapter 16 • Unconventional Vehicles www.syngress.com Figure 16. 15 Front View of the Skier Figure 16. 16 Alternative...

Ngày tải lên: 10/08/2014, 04:22

... to www.syngress.com 174 _LEGO_ 26PIII 10/29/01 4:52 PM Page 514 174 _LEGO_ 26PIII 10/29/01 4:52 PM Page 512 4 86 Chapter 24 • Simulating Flight speed+=acceleration; heading+=turn; if (heading> 360 ) heading-= 360 ; else ... Sprinkler ■ Designing Other Useful Robots Chapter 25 493 174 _LEGO_ 25 10/29/01 4:49 PM Page 493 Contests Part III 174 _LEGO_ 26PIII 10/29/01 4:52 PM Page 511 518...

Ngày tải lên: 10/08/2014, 04:22

... alt="" 8-tooth gear 24-tooth gear full-size stop bush 2x4 flat LEGO plate Sample LEGO Gearbox Design TOP VIEW Output Shaft plug motor to mesh with this gear This gearbox uses only the 8-tooth and ... before the last reduction would provide 3 times the speed at one-third of the torque. 6- long LEGO axle (2 lengths hidden in gears) 1x 16 LEGO beam

Ngày tải lên: 10/08/2014, 01:22

... triad 3-4 -5 (see the third line in Table 1.1). If you multiply each side of the triangle by a whole number, you still get a valid triad. By 2: 6- 8 -1 0 (the one of our first example), by 3: 9-1 2-1 5, ... (Base) B (Height) A 2 B 2 A 2 + B 2 Comments 5 6 25 36 61 This doesn’t work. 3 8 9 64 73 This doesn’t work. 3 4 9 16 25 This works! 25 is 5 x 5. 15 8 225 64 289 This works t...

Ngày tải lên: 10/08/2014, 04:22

... inte- gration. Nevertheless, it’s a good general building practice, especially when con- structing very large robots. The same principle applies to your most important components: motors, sen- sors, ... range, Bricks & Chips… Continued 174 _LEGO_ 04 10/25/01 3:13 PM Page 66 60 Chapter 4 • Reading Sensors bumper gently pressed against the sensor; when the front part of the bumper t...

Ngày tải lên: 10/08/2014, 04:22

... any www.syngress.com 174 _LEGO_ 06 10/ 26/ 01 1:47 PM Page 98 114 Chapter 6 • Programming the RCX In designing a multitasking application, you are required to move from a sequential, step-by-step flow to an event-driven ... Turn_Left() www.syngress.com 174 _LEGO_ 06 10/ 26/ 01 1:47 PM Page 111 Programming the RCX • Chapter 6 103 LEGO firmware. NQC supported the new RCX 2 firmware version...

Ngày tải lên: 10/08/2014, 04:22

... Let’s apply the formula to the series of our example: (60 x 1 + 62 x 2 + 67 x 4) / (1 + 2 + 4) = 64 .57 (66 x 1 + 64 x 2 + 59 x 4) / (1 + 2 + 4) = 61 .43 You notice that the results are very different ... of its light sensor are 60 , 62 , and 67 , which result in a simple average of 63 . Can you tell the difference between that situation and one where the readings are 66 , 64 , a...

Ngày tải lên: 10/08/2014, 04:22