Hi all,


Remember the Mindstorm NXT Creations I promised to show you guys? Well here it is! But first, this is a photo of my Mindstorm NXT Set!


Looks like a bunch of crap and stuff, right? Right! They are a bunch of crap and stuff, but with a manual, hand, and an incredible amount of free time, those small craps becomes a big crap!



Here is its entry on my short-attention-spanned journal.

My first official creation! SPIKE!
It is Spike the scorpion! Able to climb walls and shoot deadly corrosive poison! Not really... The claws are just for decorations purposes and they do nothing except getting in its own way. The tail, however, can shoot out and retract. The tail uses Motor A and it will move 70 degree for the tail head which is the touch sensor, to attack just in front of the head. It work like this.
First, it would "walk" for about 3 seconds, then it will scan for anything in its path within the range of 15cm. The head is actually a ultrasonic sensor. If there is an object within the range of 15 cm, Motor A will activate, sending the tail shooting in front. Here is when the touch sensor come in, when the touch sensor hit something, the tail will immediately retract, if it doesn't, it will land on the ground and the tail will retract anyway. Then, it will turn 90 degree left and continue "walking" on.
Some problems and adjustment are that it move really slow and that turning is not its strong point. An adjustment had to be made with the ultrasonic sensor. The original version called the head to facing 45 degree upwards instead of parallel to the ground. This thus messes up the distance from an obstacle it obtains from the scanning, some obstacles which are too short will also be missed. It works fine after the adjustment. Another problem was that some obstacles might just be out of range for the trigger range. Therefore Spike will move forward for another 3 second and it will knock into the obstacle and look very stupid as the legs moved on and on while the head is forced against the obstacle before it does another scan and realise that something was in its way. This problem was never solved.
Total-5.5/10
Building complexity-5/10
Program complexity-5.5/10
Entertainment-6/10
Adaptation-6/10

Cheers
Ziying
Creator of Spike

Labels: Me And My Room

Ziying

Thought deeply about where can't you enter a mirror in K1.
My conclusion? Because the other guy in the mirror will block you with the same body parts that you try to enter the mirror with... And still now I still believe in it...
Spent my childhood dismantling stuff. I think would be spending the rest of my life wondering how to fix them back together...
"Invested" most of my pocket money on comics...

Favorite novels author used to be Roald Dahl.
Now is Roald Dahl and Eoin Colfer. (It is pronounced "Owen", by the way.)
Taken a liking to Murderous Maths. Author's name? Kjartan Poskitt.
Favorite authors all seem to have a unusual name...

The time I got a Nintendo DS, I polished it at least twice everyday for a week...
Almost cried the time I dropped it on the floor...

My lifetime ambitions?
Be a Scientist(or a Philosopher?)
To eat a 冰糖葫芦. (Those you see in the movies.)
Building a snowman. (With carrots and stuff.)
Swimming in a room filled with candies where I can eat candies just by opening my mouth. (...What!?...)
Filling a bag full with candies and carrying it to school. (So I can eat candies wherever I am)

Now studying in Hwa Chong Institution, and racing in this crazy Mario Game.