can you help me i want to catch cylinders instead of the balls dimension of cylinder is h=100 mm and base=60mm and there are 3 different types of cylinder(i.e blue,red and white). My objective is to catch the nearest cylinder if it catches the red or blue cylinder then it will carry it to a different place but if it would find the white cylinder then leave it to a different place,so is it possible to sense 3 colours at a time and the ultrasonic sensor should be at a >5cm and <10cm
i'll make this robot and modify the sounds so when it catches the blue ball it plays the error sound from zelda oot and when it catches the red ball it plays the fanfare sound also from zelda oot :3
Hi!!...Really amazing website with a lot of interesting projects!!
...i have just building this model "ball hunter" and...when i save the program and try to open in my LEGO MINDSTORMS NXT v1.1, this cannot open it...other projects like "mini golf" does work perfectly...any tip?...Thanks and wavings from Spain!!
Thank you,you made me laugh as i did not for a long time ago :D I built it,got the balls (no pun intended) and let it run.For some weird reason it took more time,it just spinned all over and over (maybe messed up sonic sensor) and then my cat got in the way of it.You know what happened,it started to chase her and tried to get it :D
It will try to approach and grab the closest object it sees, but of course the mechanical grabber will only succeed in actually grabbing something of about the right size.
can u show me your NXT-g program? I once tried to ues US to detect a ball(it was a golf ball so much smaller than the one shown here) but failed.
My thread was like this : turn around and stop when the US detects something within a certain distance then go straight ahead... however, the US seemed couldn't see it and missed the ball every time I tested it.
Your US also missed the ball but later turned back. How did you make that?
The program is available for free download on the nxtprograms web site. Balls are hard for the US sensor to see because they are round and don't reflect sound well. You have to get the height and distance just right.
My program didn't actually miss the ball, it always does a full 360 degree turn looking for the closest object, then turns back to head for that. Your idea is simpler to start with, so try that, and with something bigger (like a box) and get that working first.
can you help me i want to catch cylinders instead of the balls dimension of cylinder is h=100 mm and base=60mm and there are 3 different types of cylinder(i.e blue,red and white). My objective is to catch the nearest cylinder if it catches the red or blue cylinder then it will carry it to a different place but if it would find the white cylinder then leave it to a different place,so is it possible to sense 3 colours at a time and the ultrasonic sensor should be at a >5cm and <10cm
singhbrahamdeep 1 month ago
i'll make this robot and modify the sounds so when it catches the blue ball it plays the error sound from zelda oot and when it catches the red ball it plays the fanfare sound also from zelda oot :3
EvilGears 3 months ago
"searching for ball... air... air... air... air... ball... air... wait ball? BALL! MUST GET BALL!"
"searching for ball... air... air... air... air.. ball... air... air... ball... wait 2 balls!?! I will get the blue one first!"
"eww, the blue ball tastes disgusting! I will get the red ball instead!"
shubarugothewarrior 3 months ago 2
what if somebodu accidentaly programed it to find balls instead of balls that we play
SuperManisLaLove 5 months ago
Your killing a ball
EngineerRyan 7 months ago
the name sounds painful. lol
mindstormsuser 1 year ago
if you make 3 more of that and make a main body and a tail and a head you parents couldnt say no to a robot dog
pokemonmaster8252 1 year ago
i really need that, for our trash....bigtime.....reallybigtime....
ronny2579 1 year ago
WOW,great for a hand for a monster and grabs lego people!
tesrafols 1 year ago
RED! LOL! HAHAHA!
tangofizz77 1 year ago
I take pride in finding balls and exclaiming their color without machine assistance.
ironclownfish 1 year ago
i remember playing with nxt and lego when i was a KID
Grayhams11 1 year ago
Ouch! my ball....
OtakuBaron 1 year ago
Is That A Light Sensor Or Color? 0:12
bailywojtek 1 year ago
@bailywojtek: Light sensor. The standard light sensor gets very different readings from red vs. blue because the illumination LED is red.
nxtprograms 1 year ago
@bailywojtek its the light sensor
SandwichedTom 1 year ago
It looks feirce!
idioticrandomguy 1 year ago
Stay Away From My Balls! XD
FUNKYSHEHAN2 2 years ago
awesome
LegoDude2407 2 years ago
Comment removed
choijinwok 2 years ago
cool
bigdestroyingrobot 2 years ago
Comment removed
valentinkhoo 2 years ago
The program file probably did not download completely. Try downloading it again.
nxtprograms 2 years ago
Hi!!...Really amazing website with a lot of interesting projects!!
...i have just building this model "ball hunter" and...when i save the program and try to open in my LEGO MINDSTORMS NXT v1.1, this cannot open it...other projects like "mini golf" does work perfectly...any tip?...Thanks and wavings from Spain!!
Krayzelburg30 2 years ago
Thank you,you made me laugh as i did not for a long time ago :D I built it,got the balls (no pun intended) and let it run.For some weird reason it took more time,it just spinned all over and over (maybe messed up sonic sensor) and then my cat got in the way of it.You know what happened,it started to chase her and tried to get it :D
LuciusMare 2 years ago
This Is Brilliant! May i use it for my school project please?
ButtonNumber2 2 years ago
If it's OK with your school. You just need to say that you got the building instructions and program from the nxtprograms site.
nxtprograms 2 years ago
Oh yes, I mean may I use the video pleae?
ButtonNumber2 2 years ago
The video is public here on YouTube. If your school lets you link to it you can play it live, but videos can't be copied off of YouTube.
nxtprograms 2 years ago
@nxtprograms it can be copied by keepvid (dot) com paste the link and download the video
MrNinjaboy100 1 year ago
@nxtprograms wich one is better 1.0 or 2.0????
aglx60 11 months ago
how do you make it get the ball
westekcs 3 years ago
It does a 360 turn looking for the closest object with the ultrasonic sensor, then turns back to point at and drive straight in that direction.
nxtprograms 3 years ago
so it will basically grab anything?
werty1091 3 years ago
It will try to approach and grab the closest object it sees, but of course the mechanical grabber will only succeed in actually grabbing something of about the right size.
nxtprograms 3 years ago
thank you very much for you unreserved help~
Alabastermh 3 years ago
can u show me your NXT-g program? I once tried to ues US to detect a ball(it was a golf ball so much smaller than the one shown here) but failed.
My thread was like this : turn around and stop when the US detects something within a certain distance then go straight ahead... however, the US seemed couldn't see it and missed the ball every time I tested it.
Your US also missed the ball but later turned back. How did you make that?
Alabastermh 3 years ago
The program is available for free download on the nxtprograms web site. Balls are hard for the US sensor to see because they are round and don't reflect sound well. You have to get the height and distance just right.
My program didn't actually miss the ball, it always does a full 360 degree turn looking for the closest object, then turns back to head for that. Your idea is simpler to start with, so try that, and with something bigger (like a box) and get that working first.
nxtprograms 3 years ago
1. are you going to teach your kid to play with toys
2. it looks like a vampire
shadowslayer81 3 years ago