Pneumatic Sniper and Wooden Turret
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Transcript of Pneumatic Sniper and Wooden Turret
ME 751A PROJECT
Task ForceAnkit Shrivastava (11113), Ankit Yadav (11115),
Ahsen Parwez (11416),
Riya Khurana (11606), Shivam Patel (11683), Utkarsh Bagri (11777)
Project Title - Arsenal
OBJECTIVE
• Design and manufacture working models of turret and sniper rifle• Gaining hands-on experience of design and fabrication• Experience importance of team work, coordination and
planning• To have fun and secure 50% course marks
DESIGN - SNIPER
BASIC PARTS :
The Chamber The Gun Body Stock (Proposed)
The Muzzle Trigger Valve Trigger
Assembly
MECHANISM - SNIPER
• Pressurised air filled into the chamber.• Air is released as the Blow gun valve switch is shifted to its “On”
position. The switch of the valve is turned on manually to fire the sniper. This could be triggered using a trigger assembly which was designed but not incorporated in our model.• This leads to the firing of the deadly canon stored in the muzzle
of the gun.• After fire the slider magazine allows us to reload a new canon
into the muzzle.• And lastly, why the stock ?• It simply serves the purpose of supporting the shoulder on fire.
SNIPER SPECIFICATIONS
• 0.6 caliber aluminium bullet• The barrel can withstand pressures
upto 5 MPa• Range – 150 ft to 200 ft• Adjustable barrel length – can be
used either as a rifle or a carbine depending on range, accuracy and maneuverability required
MECHANISM - TURRET
• Powered by slingshot mechanism• One end of rubber band fixed to muzzle.• Elastic band goes through a slotted wood launcher
which finally hits the ammo inside the muzzle• Launcher is pulled manually similar to a cross-bow to
fire the ammo
TURRET SPECIFICATIONS
• Ammo – Assorted. Any cylindrical object with sufficient weight, about 15cm long and 10mm in diameter can be a potential ammo. We used pencils and pens for safety considerations.• Range – Depends on the elastic and ammo
used. We achieved 30 ft. • Field of View – About 300 in azimuthal angle
and 3600 about the outward normal.
MATERIAL SELECTION
• We selected PPR pipes and connections• Can sustain high air
pressure• Used in compressor
fittings
• Can be joined easily by hot air gun • We selected wood
for turret
• Easy to work with• Cheap• Easy to incorporate
design changes
Material Cost
PPR Pipes – 0.75”, 1”, 1.25”, 2” (4ft each) 1280
Threaded Couplings – 1” X 2 75 X 2
Couplings – 1” X 3 50 X 3
Reducer – 2” to 1” 40
Reducer – 1.25” to 1” 40
Reducer – 1” to 0.75” 40
End Caps – 2” and 0.75” 35 X 2
T – 1” X 2 25 X 2
Blowgun Valve – 1 320
Elbow 90° - 1” X 5 20 X 5
Wood 1500
Slingshot Rubber 30
Total 3670
MATERIALS PROCURED AND COST INCURRED
EXECUTION PLANSr No Work Proposed Deadline Responsibility Present Status
1 Mechanism Design
January 31, 2014 for sniper and February 7 for turret
Ahsen Parwez, Ankit Shrivastava
Done
2 Finalizing Dimensions
February 14, 2014 Ahsen Parwez,Riya Khurana,Ankit Shrivastava
Done
3 Material Selection
March 3, 2014 Utkarsh Bagri, Ankit Yadav, Shivam Patel, Riya Khurana
Done
4 Arranging Materials
March 14, 2014 Utkarsh Bagri, Ankit Yadav, Shivam Patel
Done
5 Fabrication April 6, 2014 Ahsen Parwez, Ankit Shrivastava,Utkarsh Bagri, Ankit Yadav, Shivam Patel, Riya Khurana
Done with some design modifications
6 Field Testing April 14, 2014 Ahsen Parwez, Ankit Shrivastava,Utkarsh Bagri, Ankit Yadav, Shivam Patel, Riya Khurana
Done
FURTHER IMPROVISATIONS POSSIBLE
SNIPER• A trigger mechanism
using the elastic force of elastic bands instead of manual operation (design enclosed)• A binocular to set target• A stand to allow fire in
resting position
TURRET• Automated firing using a disc
with a spoke protruding out of its periphery allowing elastic band to be pulled and the disc rotation can be done using a motor attached.• Mounting on wheels to
enhance portability• Locking mechanism to avoid
recoil