Project Name: Ball Skirmish
Controlled by: Remote Control
Construction Difficulty: Medium
General Comment. This is a great challenge and lots of fun!
Controlled by: Remote Control
Construction Difficulty: Medium
General Comment. This is a great challenge and lots of fun!
Rules FOR STUDENTS
You must use:
-1 NXT or EV brick
-3 motors
-1 ball shooter (Pretty hard to find. I found some in my Lego Bionicles collection. Alternatively, you could get the students to try and invent a ball-shooter).
-3 balls for ammo
You must:
Build a robot that can launch marbles at another robot, to compete in a confined area. Whoever hits the other the most, wins. Limited to 3 balls each per battle. It'd s bit like paintball or brandy!
Tips For students
Tip: Cars with two wheels will turn better.
Tip: When battling, don't be in a hurry to shoot.
TEACHER INFO
To create an EV3 ball shooter, you'll need to build a mechanism that can propel a ball, potentially using a motor-driven wheel or a spring-loaded piston. You'll also need to design a way to load the ball into the shooter and potentially control the aiming or power of the shot
Make a copy of this Google Sheet to help you score
Or use this KNOCKOUT version of scoring.
Make a copy of this Google Sheet to help you score
Or use this KNOCKOUT version of scoring.
Ball shooters?
Here are the original instructions for an EV3 ball shooter
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Two Alternatives to small ball shooters:
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Additional Equipment needed
I used a large carpet mat on the floor to define the battle zone. Then I added things like cushions and other small pieces of furniture for obstacles, and places for the robots to hide behind.
Remote Controlling?
I found a PC and Mobile controller (NOT Apple) that may work here
Or another one from Google Play (NOT Apple) that may work here
Please note. It seems as though the Commander App is no longer available in the app store. You should still be able to control it via the arrow keys through the older "icon-based" computer versions (no longer available for Apple). The original PC version can be downloaded from this web site
I used a large carpet mat on the floor to define the battle zone. Then I added things like cushions and other small pieces of furniture for obstacles, and places for the robots to hide behind.
Remote Controlling?
I found a PC and Mobile controller (NOT Apple) that may work here
Or another one from Google Play (NOT Apple) that may work here
Please note. It seems as though the Commander App is no longer available in the app store. You should still be able to control it via the arrow keys through the older "icon-based" computer versions (no longer available for Apple). The original PC version can be downloaded from this web site
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It is possible to connect a Play Station controller to the EV3 hub, but it is a complicated process. One of your brightest students might like to complete this challenge!
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This is an older video but it shows how a skirmish shooter could be designed. Any kids who have bionicles will have these ball shooters at home!
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SAMPLE COMMANDER CONTROL (No longer available from App store)
Open App and use arrows to "create and command"
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Click on any "+" symbol
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Scroll to find and add vertical slider
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Place slider on left then click another "+"
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Place next to other slider. (Take note of which motor they each control)
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Click red SPANNER (bottom right) then connect via bluetooth (bottom left)
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Please note, you will have to make sure your bluetooth turned on, on your tablet/phone AND on the EV brick.
Under the 'spanner' tab make sure the ticks are on for Bluetooth and iPhone/iPad/iPod
Under the 'spanner' tab make sure the ticks are on for Bluetooth and iPhone/iPad/iPod