Paintball marker
From DDL Wiki
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(→'''Customer Needs and Product Requirements''') |
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! Customer Needs !! Product Requirements | ! Customer Needs !! Product Requirements | ||
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- | | Sturdy || | + | | Sturdy || |
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- | | Easy Assembly || | + | | Easy Assembly || |
|- | |- | ||
- | | Easy to Clean || | + | | Easy to Clean || |
|- | |- | ||
- | | Lightweight and Comfort | + | | Lightweight and Comfort || |
|- | |- | ||
- | | Economical || | + | | Economical || |
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<br /><br /> | <br /><br /> |
Revision as of 16:57, 11 February 2007
Contents |
Conventional and Unconventional Purposes
- Marking Cattle
- Marking Trees
- Non-Lethal Live Action War Simulation Training
- Paintball Games
- Fun and Entertainment
- Law Enforcement
Customer Needs and Product Requirements
Paintball markers were initially designed for marking trees, trails and cattle. Today, the marker is predominantly used in the sport of paintball and as a result the product has needed to be altered so as to better fulfill the needs of this new scope of customers. A paintball player needs his/her marker to be sturdy and to be able to endure a significant amount of physical damage. The marker also needs to be easy to assemble/diassemble as well as easy for the user to clean, maintain and store away. Due to the fact that the user will be running around with the product, it needs to be lightweight and easy to hold/carry.
In terms of product requirements, the marker needs to be designed in such a manner that the paintball is fired out of the barrel at velocity of around 300 ft/s (91m/s). This is due to the fact that at this velocity a paintball will not be traveling fast enough to severely hurt an opposing player (players would only suffer mild bruising when hit by a paintball) but it is still traveling fast enough so that it breaks upon impact. The marker needs to be made of lightweight materials so that the users can easily carry it and run with it. The marker also needs to be designed in such a manner that users can upgrade their markers conviently. This includes upgrades such as changing the barrel, the trigger frame, the hopper (holds paintballs in marker), the gas tank and so forth. The marker's trigger frame needs to be constructed in such a manner that an average person's hand can hold the marker comfortably.
Summarized:
Customer Needs and Product Requirements
Customer Needs | Product Requirements |
---|---|
Sturdy | |
Easy Assembly | |
Easy to Clean | |
Lightweight and Comfort | |
Economical |
Inputs and Outputs
- Pressurized CO2 (Input)
- Force of Pulling Trigger (Input)
- Paintballs (Input)
- Oil (Input)
- Paintball at High Velocity (Output)
- Expanded Non-Pressurized CO2 (Output)
- Small amounts of excess oil (Output)
Stake Holders
- Production Companies
- Paintbal Gun Manufacturers
- Proffesional Paintball Players
- Recreational Paintball Players
- Retail Stores
- Paintball Arenas
Operation Procedures
1)Apply oil to CO2 tank connector
2)Cock bolt
3)Connect tank
4)Open CO2 valve
5)Dry fire 10-15 times
6)Attach barrel
7)Attach hopper elbow
8)Attach hopper
9)Fill hopper with paintballs
10)Disengage power feed
11)Aim gun at target
12)Pull trigger
13)Repeat as neccessary
Specific User Considerations
- Fatigue or weak arms can't lift gun steadily
- Extreme low temperatures
- Too rapid a rate of fire
- Assembly difficult for disabled users (lost arm, or finger)
- Bad vision
- Clogged Barrel or Debris in system
Possible Areas of Improvement
- Shooting accuracy
- Shooting range and distance
- Gas efficiency
- Weight and size of marker
- Trigger pull distance
- Multiple projectile firing
- Reduction in number of components
- Ease of disassembly for cleaning and service
Functional Operation
Components
Part # | Part Name | Sub-Assemblies | Qty. | Function | Material | Manufacturing Process | Image |
---|---|---|---|---|---|---|---|
000 | Misc. Parts: Screws, nuts, pins, washers, o-rings | ALL | n/a | 1. Used for holding assemblies and parts in place 2. O-rings used for airseals 3. Lubricant used for wear protection and fluidity | Rubber/Silicon o-rings, steel screws, nuts, and other parts | Milled nut fittings for grip, purchased various other parts | |
01 | Barrel | n/a | 1 | 1. Direct ball after exiting marker 2. Cause pressure gradient decreasing paintball deformation 3. Unscrews for easy cleaning | Anodized Aluminum | Turned on Lathe, Drilled out porting, Milled for aesthetics | |
02 | Barrel Shroud | n/a | 1 | 1. Aesthetics 2. Shields barrel/body connection area | Plated Aluminum | Turned on Lathe and Milled | |
03 | Sight Rail with Beaver Tail | n/a | 1 | 1. Provides a reference for aiming in a straight line 2. Protects user from moving bolt 3. Aesthetics 4. Shields Bolt | Anodized Aluminum | Extruded and Milled to final shape | |
04 | Main Body | n/a | 1 | 1. Houses bot, striker, and valve sub-assemblies 2. Provides adapters for barrel, hopper, grip frame, ball detent, sight rail, and air system 3. Window to view movement of bolt 4. Color and milling for aesthetics | Anodized Aluminum | Aluminum Extrusion, Milling and Drilled Holes, Welded on Powerfeed, Reamed inner bores | |
05 | Trigger Frame & Grip | Trigger Frame & Grip | 1 | 1. Attaches directly to main body 2. Double trigger for increased fire rate 3. Trigger guard to prevent accidental trigger pull 4. Grip provides stability for holding marker 5. Internals control bolt release 6. Holds attachment for drop forward and grip covers | Aluminum Alloy frame and trigger, Steel pins and levers, wire springs | Diecast frame and trigger with finish drilling and machining, milled levers, ground pins, press fit pins for assembly | |
06 | .45 Grip Covers | Trigger Frame & Grip | 2 | 1. Attach to grip frame 2. Provide a rough grip 3. Hold drop froward nuts in place | Rubber | Injection Molded rubber | |
07 | Mini Drop Forward | Trigger Frame & Grip and Tank Adapter | 1 | 1. Attaches the tank adapter to the grip frame 2. Centers weight by moving tank forward 3. Milled for aesthetics and decreased weight 4. Lowers tank on marker | Anodized Aluminum | Milled and Polished, Drilled Holes | |
08 | Regulator/Expansion Chamber Assembly | Tank Adapter | 1 | 1. Transports air from tank to vertical adapter 2. Expansion chamber allows liquid CO2 to change to gas 3. Regulator controls flow from tank 4. Expansion chamber provides a front grip | Anodized Aluminum, Steel Fittings, Plastic Macroline hose, Pressure Gauge | Aluminum turned on lathe with additional Milling, machined nuts, air sealed hose and fittings | |
09 | Low Pressure Chamber | Tank Adapter | 1 | 1. Allows additional volume to hold gas 2. Seals front end of vertical adapter | Anodized Aluminum | Turned on Lathe | |
10 | Vertical Adapter | Tank Adapter | 1 | 1. Creates a 90 degree elbow from main body 2. Connects expansion chamber (or tank) to main body 3. Allows access to the valve assembly 4.Threaded for attachment of low pressure chamber | Anodized Aluminum | Milled and turned on Lathe | |
11 | Valve Body | Air Valve | 1 | 1. Provides seal surface for the cup seal 2. Transports air to the bolt when cup seal is opened | Aluminum | Turned on Lathe, milled and drilled | |
12 | Valve Cup Seal & Pin | Air Valve | 1 | 1. Seals valve when pressurized 2. Slides open when hit by striker allowing air flow | Stainless Steel Pin and Nylon Seal | Pin turned on Lathe and Milled Flat, Seal turned on Lathe | |
13 | Valve Cup Seal Guide | Air Valve | 1 | 1. Keeps valve pin and seal in line while moving 2. Open edges allow air flow around guide 3. Contact surface for valve spring | Plated Steel? | Stamped? | |
14 | Valve Spring | Air Valve | 1 | 1. Holds valve seal closed 2. Controls opening and closing of valve | Alloy Steel Wire | Wound wire | |
15 | Ball Detent & Cover | n/a | 1 | 1. Holds paintball in place before struck by bolt 2. Cover holds the rubber detent itself and screws onto main body | Anodized Aluminum Cover and Rubber Detent | Extruded and Milled cover with drilled holes and injection molded detent | |
16 | Bolt | Bolt & Striker | 1 | 1. Connects to the striker by steel pin 2. Allows gas flow from below through the bolt to the ball 3. Propels paintball 4. Coloring and grooving for aesthetics | Anodized Aluminum outer section with stainless steel inner piece and pin | Turned on Lathe and Drilled Outer piece, milled inner piece, turned pin, press fit pin | |
17 | Striker | Bolt & Striker | 1 | 1. Strikes the valve pin to open valve 2. Drives bolt forward and back 3. Surface for striker spring 4. Directs air from valve to bolt 5. Shaped to hook on trigger mechanism in trigger frame in "cocked" position | Steel | Turned on Lathe and Milled Flat, Black Oxide Finish | |
18 | Striker Spring | Bolt & Striker | 1 | 1. Drives striker into valve pin | Steel wire | Wound wire | |
19 | Striker Buffer | Bolt & Striker | 1 | 1. Prevents impact between striker and velocity adjuster | Rubber | Extruded and Cut | |
20 | Striker Spring Guide | Bolt & Striker | 1 | 1. Keeps spring in-line with striker 2. Provides contact surface for velocity adjustment | Hard Plastic | Injection Molded | |
21 | Velocity Adjuster | Bolt & Striker | 1 | 1. Thumbscrew allows easy velocity adjustment 2. Set screw provides velocity "lock" 3. Adjusts length of spring to adjust range of motion and air flow by way of the striker 4. Indented for quick disconnect pin | Anodized Aluminum | Turned on Lathe with Milled Slots and Holes | |
22 | Quick Disconnect Pin | Bolt & Striker | 1 | 1. Holds bolt and striker assembly in main body 2. Has hoel in end for locking pin | Stainless Steel | Turned on Lathe and Drilled Hole | |
23 | Powerfeed Plug | n/a | 1 | 1. Plugs bottom side of ball feed 2. Rotates 180 degrees to turn flow of paintballs on and off 3. Fully removes for cleaning | Plastic | Injection Molded |
Design Analysis
Design for Manufacturing and Assembly
1. This is a design built from a "line" of markers, it shares many of the same main parts found in the rest of the line:
* This repeatability is very useful in cutting cost, it requires fewer production lines ** The Grip and trigger frame is used universally across many of the available models of this generation of Spyder marker ** The Main Body was used across all of the Spyder markers, the milling and the powerfeed are the only things that may change between models ** The barrel threads are universal across Spyder markers and also fit some other brands as well - allows for customization ** Most of the exterior or main parts are built for flexibility and customization - user could purchase the lowest end model and customize it into the high end model easily
2.