
Build. Behold. BANNG!!!
Mortar Kombat –a cannon making event, for the first time in India!! This event gives you a chance to make a gun with help of clean fuel- the compressed air as well as the good old combustion techniques. Making a gun was never this easy. Check the resources section for more help. Feel free to contact us any time if you have any queries or difficulties.
The enemy camps across the border have been troubling you for a long time and it’s time to drive them out. So build a cannon that will wreck havoc in the enemy camp. Blast the enemy camps with the amazing firepower you have! War is upon us!!!
Making a gun was always a thing of interest for all of us. But our parents or the environment has always been hostile for it. It’s time to feel free and let your creativity fire out of you!
NEW !!!
1.How to make a spud gun ? -sample
2. Arena of final round. Check event details..
3. Internal Ballastics of a spud gun
Details
Rules
General Rules:
The teams must adhere to the spirit of healthy competition. Judges reserve the right to disqualify any team indulged in misbehaviour.
Judging Criteria/Scoring system will be final.
The organizers reserve the right to change any or all of the above rules as they deem fit. Change in rules if any will be highlighted in the website and will be notified to the registered participants.
The teams violating any of the rules mentioned above will be disqualified.
Certification Policy:
Top 3 Teams will be awarded a Certificate of Excellence.
Rest all teams will be awarded a Certificate of Participation.
Team Specifications:
Minimum : 1 membersMaximum : 4 members
Judging Criteria
The points will be awarded in following manner :
Round 1:
The participant would get points equal to the range of their gun in metres. (Least count 1m)
Round 2:
If the participant hits the exact rectangular area , 100 points will be awarded.
If the participant hits the rectangle at the same level but at the side of the given rectangular area,70 points would be awarded.
If the participant hits the rectangle below/above the given rectangle, 40 points would be awarded.
Note: The bottom most two rectangles are not considered for evaluation.
Round 3:
Points for hitting the structures are as follows.
Dam - 50 points
Warehouse - 50 points
Ammunitions Depot - 70 points
Communications Center - 100 points
Headquarters - 150 points
The judges’ decision would be the last decision. Everyone should keep sporting spirit. The aim of the game is to learn ballistics of a cannon and implement it practically for enjoyment.
Resources
http://www.bits-quark.org/2013//files/spudgunphysics.pdf
Making a combustion spud gun-sample
http://en.wikipedia.org/wiki/Spud_gun
http://home.howstuffworks.com/spud-gun.htm
http://www.angelfire.com/pa4/zgarm/spudguns.html
For pneumatic canon and related parts/materials:
Generally solenoid valves are used for releasing the pressure from tank to the barrel. For example: 2/2 solenoid valve. They are activated by electrical signal. Check the above Wikipedia page for more information of various valves.
http://www.instructables.com/id/Sprinkler-valve-air-cannon/?ALLSTEPS
http://www.spudfiles.com/spud_wiki/index.php?title=Schrader_valve
http://www.spudfiles.com/spud_wiki/index.php?title=Sprinkler_valve
http://www.spudtech.com/default.asp
For combustion cannon and related parts/materials:
For Fuels-
Deodorants, hair sprays, WD-40(anti rust spray) are easily available highly flammable aerosol fuels.
(While using deodorant do not forget to check the water percentage in it. )
http://minabema.blogspot.in/2012/10/how-to-make-potato-cannon.html
http://www.advancedspuds.com/fuel.htm
http://www.aaroncake.net/spuds/boom.asp
For sparking:
Kitchen Gas Lighter, BBQ lighter, flint wheel lighter used in cigarette lighter etc are good sparking agents.
General tips:
Wet cloth ball/filled socks are nice projectiles.
For combustion based guns, volume of fresh air available for combustion is important part. Do not spray too much fuel. Remember one thing less is more. Keep mechanism for recycling the air in combustion chamber after one shot.
Barrel length of cannon affects a lot on its range. Optimize it.