http://www.Techbricks.nl shows in this video the difference in performance between an original LEGO pneumatic cylinder and a cylinder that is optimized for optimal air flow. The inlet/outlet holes of the cylinder are drilled up to 2 mm with the result that the piston can move much faster. Check my web page about LEGO pneumatic engine (LPE) for more info: http://www.techbricks.nl/My-pn eumatic-LEGO-projects/lego-pne umatic-engine-lpe-3-cylinder-i nline.html

jnVEX1w7TDc

http://www.techbricks.nl rebuild a LEGO Pneumatic Engine 3 cylinder inline (LPE). This design was original made by LPEpower.com, but it is not a exact copy. Several changes were made . This video is made after I modified pneumatic cylinders and pneumatic switches. The switch now can move with much less friction and the switches and cylinders now have 2mm diameter inlets/outlets to let the air flow fast enough. Check my site to learn more about the problems I had to overcome for this model to rebuild and to get it run fast: http://www.techbricks.nl/My-pn eumatic-LEGO-projects/lego-pne umatic-engine-lpe-3-cylinder-i nline.html

l5DdZ-ar-7E

http://www.techbricks.nl build a NXTway-Gyro (or NXTway-g) Segway self-balancing LEGO NXT Mindstorms robot with Mindsensors remote PSP controller and a Hitechnic gyro sensor with NXC software based on JanB's program. (Segway PT is a two-wheeled electric vehicle invented by Dean Kamen). The bot is able to run over a tilt surface and it is controlled very smooth.
A very small NXC program is keeping the bot upricht by doing the following tasks:
- determine the gyro bias, because every gyro sensor can be influenced by temperature and manufacturing tolerances.
- read out the Sony PSP joystick using the Mindsensors PSP-Nx-v3 controller.
- the body tilt controller prevents the robot from falling over.
- the position controller prevents the robot from driving away.
- the gyro drift compensation allows the robot to balance for long time.
- set the friction compensation.
Ryo Watanabe (NXTway-G), Ramin (Self balancing bot), Yorihisa Yamamoto (NXTway-GS) and Engscope (Jegway) programmed there NXT segway in some kind of C language (RobotC or lejos), but I wanted to run my program in NXC (because it is free!).
If you have a NXT Mindstorms set (9797-1, 8527-1 or 8547-1) and you buy a gyro sensor at Hitechnic you can build this bot. If you want to control it using PS2 joystick, you need of course a Mindsensors PSP controller.
Please check for instructions, software download and more info about the programs: http://www.techbricks.nl/My-NX T-projects/nxt-self-balancing- segway-nxtway-robot.html

hpCwdu0e3i0

http://www.techbricks.nl build a LEGO pneumatic switch controlled by a mindstorms NXT and motorized with a NXT motor with worm gearing. An electric switch (touch sensor) determine the center position of the pneumatic switch. The NXT-G demo program first determine the left and right positions of the electric switch and then go to the center position of the pneumatic switch. Ones the center is reached the demo program will demonstrate how to open the left and right output of the pneumatic switch and then return to the center.
For more information a photo's please go to http://www.techbricks.nl/My-pn eumatic-LEGO-projects/motorize dpneumaticlegoswitches.html

ZM9526ArQ2w

http://www.techbricks.nl build a LEGO pneumatic switch controlled by a mindstorms NXT and motorized by a PF motor (small Power Functions LEGO motor) and a Linear Actuator. An electric switch determine the center position of the pneumatic switch. The NXT-G demo program first determine the left and right positions of the electric switch and then go to the center position of the pneumatic switch. Ones the center is reached the demo program will demonstrate how to open the left and right output of the pneumatic switch and then return to the center.
For more information a photo's please go to http://www.techbricks.nl/My-pn eumatic-LEGO-projects/motorize dpneumaticlegoswitches.html

uQrOkZmCjoI

http://www.techbricks.nl build a LEGO pneumatic switch controlled by a mindstorms NXT and motorized by a micro motor (micromotor 70823/2986 LEGO motor). An electric switch determine the center position of the pneumatic switch. The NXT-G demo program first determine the left and right positions of the electric switch and then go to the center position of the pneumatic switch. Ones the center is reached the demo program will demonstrate how to open the left and right output of the pneumatic switch and then return to the center.
For more information a photo's please go to http://www.techbricks.nl/My-pn eumatic-LEGO-projects/motorize dpneumaticlegoswitches.html

sFfG-bJ50Po

http://www.techbricks.nl build a LEGO pneumatic switch controlled by a mindstorms NXT and motorized by a legacy motor (43362 mini LEGO motor). An electric switch determine the center position of the pneumatic switch. The NXT-G demo program first determine the left and right positions of the electric switch and then go to the center position of the pneumatic switch. Ones the center is reached the demo program will demonstrate how to open the left and right output of the pneumatic switch and then return to the center.
For more information a photo's please go to http://www.techbricks.nl/My-pn eumatic-LEGO-projects/motorize dpneumaticlegoswitches.html

rZCzAkwh2iI

http://www.techbricks.nl has build the new LEGO Off Roader truck, set 8297, in yellow bricks. I have downloaded the building instructions from the LEGO site. Check my web site for the photo's and more info: http://www.techbricks.nl/My-te chnic-LEGO-projects/off-roader -8297-in-yellow.html

z1ubP-Lcbak

http://www.techbricks.nl NXT bot with wireless Sony playstation 2 joystick remote controle, a Mindsensors wireless PSP-Nx-v3 receiver and a wireless web cam. The bot almost the same like the one offert by RobotC. I made software in NXC and NXT-G. Check for more information: http://www.techbricks.nl/My-NX T-projects/nxt-bot-with-psp-jo ystick.html

BjGDxbtf6ls

http://www.techbricks.nl NXT bot remote controlled with Mindsensors PSP-Nx-v3 controller and Sony Playstion2 PS2 joystick controls and a wireless web cam. This video shows the speed and direction of the wheels in combination with the joystick position. I have made software in NXC and NXT-G to control the NXT. Check for more information: http://www.techbricks.nl/My-NX T-projects/nxt-bot-with-psp-jo ystick.html

J5qpChuG9kU

http://www.techbricks.nl LEGO pneumatic air compressor using large pumps and Power Function motors. The air pressure is regulated by a Power Functions pole reverser switch and a cylinder. The Mindsensors pressure sensor for Mindstorms NXT is used to measure the pressure. Check for more information: http://www.techbricks.nl/My-pn eumatic-LEGO-projects/pneumati clegocompressorpf.html

hEz8JNT0ugU

http://www.techbricks.nl LEGO pneumatic air pressure regulator based on a PF (Power Function) pole reverser and a pneumatic cylinder. For more information please take a look at: http://www.techbricks.nl/My-pn eumatic-LEGO-projects/legopneu maticregular.html

mH8SnbiIjVw