Reverse Engineering of a pen
Reverse Engineering of a Pen – Assignment
Requirements
1) Plastic Container: the plastic container is the framework for the pen.
a) Has to be plastic so it is cost efficient and can be easily manufactured. With these two properties it can be mass-produced in order to profit.
b) Must be cylinder shaped in order for the ballpoint ink cylinder to fit into the plastic cylinder.
c) The plastic cylinder must be in two parts. The two parts are a bottom and a top. The top cylinder’s wedges on the inside must be able to screw around the bottom cylinder’s wedges on the outside.
d) The bottom cylinder is 6.5cm long including the wedged area. 5.2cm not including the wedged area. The diameter of the bottom cylinder is .6cm at the top (where wedged area goes into the top cylinder) and the diameter of the bottom cylinder is .3cm (where the ballpoint goes in and out of in order for it to allow one to write).
e) The top cylinder must be 8cm long and 1cm in diameter throughout the whole cylinder. On the outside of the top cylinder there is clip attached. The clip is used so one could clip it too, for example, the inside of the pocket of a shirt.
2) Spring/Coil: The Pilot EasyTouch pen works because of the 2cm long spring. The spring’s diameter is just slightly bigger than the ballpoint’s body. Wide enough to lightly hug the cylinder shaped ballpoint body. The coil creates the tension necessary for the ballpoint of the pen to stay out. Clicking the end of pen when the ballpoint pen is out releases the tension causing the ballpoint to retract back into the plastic cylinder.
3) Ballpoint Body- The ballpoint body is the plastic cylinder that contains the ink inside. Can also be called an ink cartridge. Its is 10cm long and very slim but wide enough to perfectly fit into the coil.
4) Inside Framework- The inside framework can be called the cap that sticks out of the top of the pen. The part one pushes to click the ballpoint in and out of the pen cylinder.
5) Rubber
Requirements
1) Plastic Container: the plastic container is the framework for the pen.
a) Has to be plastic so it is cost efficient and can be easily manufactured. With these two properties it can be mass-produced in order to profit.
b) Must be cylinder shaped in order for the ballpoint ink cylinder to fit into the plastic cylinder.
c) The plastic cylinder must be in two parts. The two parts are a bottom and a top. The top cylinder’s wedges on the inside must be able to screw around the bottom cylinder’s wedges on the outside.
d) The bottom cylinder is 6.5cm long including the wedged area. 5.2cm not including the wedged area. The diameter of the bottom cylinder is .6cm at the top (where wedged area goes into the top cylinder) and the diameter of the bottom cylinder is .3cm (where the ballpoint goes in and out of in order for it to allow one to write).
e) The top cylinder must be 8cm long and 1cm in diameter throughout the whole cylinder. On the outside of the top cylinder there is clip attached. The clip is used so one could clip it too, for example, the inside of the pocket of a shirt.
2) Spring/Coil: The Pilot EasyTouch pen works because of the 2cm long spring. The spring’s diameter is just slightly bigger than the ballpoint’s body. Wide enough to lightly hug the cylinder shaped ballpoint body. The coil creates the tension necessary for the ballpoint of the pen to stay out. Clicking the end of pen when the ballpoint pen is out releases the tension causing the ballpoint to retract back into the plastic cylinder.
3) Ballpoint Body- The ballpoint body is the plastic cylinder that contains the ink inside. Can also be called an ink cartridge. Its is 10cm long and very slim but wide enough to perfectly fit into the coil.
4) Inside Framework- The inside framework can be called the cap that sticks out of the top of the pen. The part one pushes to click the ballpoint in and out of the pen cylinder.
5) Rubber