Gökhan Uçan-030070028-2nd week

Alpha Prototype:
Alpha prototypes are typically used to assess whether the product works as intended. The parts in alpha prototypes are usually similar in material and geometry to the parts that will be used in the production version of the product, but they are usually made with prototype production processes. For examply, plastic parts in an alpha prototype may be machined or rubber molded instead of injection molded as they would be in production.
(Kalpakjian S., Schmid S.R., Manufacturing Engineering and Technology,5th Edition, pg.261)

Beta Prototype:
Beta prototypes are typically used to assess reliability and to identify remaining bugs in the product.These prototypes are often given to customers for testing in the intended use environment. The parts in beta prototypes are usually made with actual production processes or supplied by the intended component suppliers, but the product is usually not assembled with the final assembly facility or tooling. For example, the plastic parts in a beta prototype might be molded with the production injection molds but would probably be assembled by a technician in a prototype shop rather than by production workers or automated equipment.
(Kalpakjian S., Schmid S.R., Manufacturing Engineering and Technology,5th Edition, pg.261)

Robot Safety:
Depending on the size of the robot's work envelope, speed, and proximity to humans, safety considerations in a robot environment are important, particularly for programmers and maintenance personel who are in direct physical interaction with robots. In addition, the movement of the robot with respect to other machinery requires a high level of reliability in order to avoid collisions and damage to equipment. Its material-handling activities require the proper securing of raw materials and parts in the robot gripper at various stages in the production line.
(Kalpakjian S., Schmid S.R., Manufacturing Engineering and Technology,5th Edition, pg.1171)

Feedback Devices:
Feedback devices (such as transducers) are an important part of the control system. Robots with a fixed set of motions have open-loop control. In this system, commands are given and the robot arm goes through its motions. Unlike feedback in closed-loop systems, accuracy of the movements is not monitored. Consequently, this system does not have a self-correcting capability.
(Kalpakjian S., Schmid S.R., Manufacturing Engineering and Technology,5th Edition, pg.1168)