I have built many robots and here are some of mine. Just click the picture for more info!
Dragster Extreme V1- This robot is not really a dragster but was built for speed. Topping at around 6.2 MPH it is one of the fastest roadsters out there.
My First Model: Airplane- This model is my first and hopefully not my last. It uses worm gears to adjust the side flaps and let me experimented with gears!
4WIDR V2- This robot again uses 4 motors. Only this time the back tires are well, tires! The US is able to do two things at once: detect walls and detect ledges or clifs.
SRB- This robot is a ultra compact design with the US sensor snugly fit under the main robot unlike other robots that may have it poking out from the front, making it get hit by objects.
4WIDR- This robot uses 4 "wheels" and is a 4 wheeler. It uses 4 motors and 2 NXTs.
Propeller Bot V4- This robot uses a 4 bladed design and has a more reinforced central shaft for heavier propellers and move at 5 inches per second!
Propeller Bot V2 -This robot uses only 2 motors and drives much faster than any of my previous Propeller Bots.
X-32 -A experimental non Lego bladed with 4 motors and 2 NXT the 3rd NXT is there to synchronize the two NXTs on board the robot.
Propeller Bot V1 -A robot that uses a propeller to drive around!
If you want to showcase you robot why don't you go to NXTGallery.com. It only takes a few minutes to register!
Here are more details of My Robot in chronological order.
This is my 3rd attempt on breaking the fastest NXT record. And it did! (According to my caculations) It travels at 6.18686869 mph or 108.8888888888 inch per second. This is not what I beleive the top speed as the track I’m using is just too short and ends within a few seconds. Sorry to all who are trying to beat the record though I’ll post some more pictures and some videos (including one with the camera on board!) It was risky putting the camera on the robot as sometimes the NXT overshoots and then crashes down the stairs. (My heart beat went up a bit before I touched the orange button.)
BTW the green strings are the strings I used to connect the camera to the NXT and serves no other purpous.
This is my first mock up airplane. It has the side adjustment things (I forgot what you call them) and the rear steering flap. It can drive forward and uses the bulky motors to look like a jet engine. It is my first mock up and hopefully not my last. I know this might not look like a real airplane but I still like it. I was hoping to use the two flaps to also adjust the front wheels using strings but it was unsuccessful so I tried it with the rear flaps but had a bulky mechanism so I just had to have the rear flap. Click here to read my post on NXTGallery.
Sorry, I used the cell phone and it might take a while to get around to downloading to my PC.
Here is my V2 of my 4WIDR. It is able to now climb smooth sufaces. The stack of tapes you see in the photo is part of my testing course for it. (Yes, it passed) Sorry for the bad lighting. My lights were too close to the NXT and made it ultra reflective. It uses the US for two things, one for sensing a object in front and one for sensing if there is a ledge. If there is more than a few cm it will tell it is a ledge and if it is less than a few cm it will tell there is a wall. I find using the US sensor for two purpouses fun and ablet to save money instead of buying another US. Click Here to read my post on NXTGallery.
SRB (Small Rover Bot) is just well, a small rover bot! It is has its ultrasonic sensor behind the wheels to prevent getting crashed in by a wall or an object. It has a sturdy swivel design that dosen’t bend as much as other swivels. It is able to turn pretty good and operates best on carpet. This robot has not yet to be designed with the Lego Battery pack. There is a V2 of the robot that let the robot have a higher clearnece then the current one. The V2 is undocumented, sadly. Read my post at NXTGallery.com
4WIDR (Four Wheel Individual Drive Robot) is a robot that has independent 4 wheel drive propulsion. It uses 2 NXTs, 4 motors, and 1 US sensor. It uses 40 tooth gears for grip sandy terrain. Here is a list of pros and cons:
Won’t jam if one wheel is locked up.
Kicked up dust or soil mounds passed by the movoing gears jam up the gears and destroy gears.
It is bigger
It has much more space between the back and front wheels allowing for slipping or slowly crawling down steps.
Can somewhat operate even if one brick loses power.
Low Center of Gravity
Don’t rely on gears than can be jammed with some soil.
Hard to syncronize
Lower ground clearence
Can’t spin on a dime (for now)
Hard to replace batteries
Hard to make programs with multiple sensors.
There will be no video posted for this bot. Sorry!