Locking mechanism
The joints had to be such that they can be loosened and tightened at any required configuration, this obstacle was overcome by the use of wing nut at the end of the screw instead of a normal nut, and the image below shows the wing nut and bolt. This is the most cost effective yet strong way of locking the joints compared to knobs and other clamp mechanisms.
Materials
For the Robot Arm Construction our group members had a variety of materials to choose from, these materials would eventually be utilized in the building of the Arm including its base and links. The materials which were chosen are mentioned below;
1. Aluminum :
Almost every link and part is made up of aluminum in our ‘Robot Arm’. From the base till the end …show more content…
• Highly recycle-able
4. Plexi-Glass :
It has only been used once in the whole project and that is to make the octagon shape of the rotating 360o base which is resting on the wheels. Plexi-Glass was a rectangular sheet which was cut in octagon shape using cutter and was later phi-led to achieve the desired shape and to perfect the edges they were chamfered. It is connected to the MDF mini base by a pin joint.
Since plexie glass is clear and transparent, it gives a clean and more clear look to the whole project and to see how the rolling wheels mechanism works. The surface of plexi-glass is smooth which provides enough friction for the wheels to rotate the octagon plate.
Advantages:
• It is only half as heavy as glass.
• Working with it is much easier because it can also be sawed, whereas glass must be scored.
• A transparency rate of 93% makes Plexie the clearest material known.
• A unique property of plexie is that it can be shaped easily.
• Strong enough to bear upto 15 N of
The joints had to be such that they can be loosened and tightened at any required configuration, this obstacle was overcome by the use of wing nut at the end of the screw instead of a normal nut, and the image below shows the wing nut and bolt. This is the most cost effective yet strong way of locking the joints compared to knobs and other clamp mechanisms.
Materials
For the Robot Arm Construction our group members had a variety of materials to choose from, these materials would eventually be utilized in the building of the Arm including its base and links. The materials which were chosen are mentioned below;
1. Aluminum :
Almost every link and part is made up of aluminum in our ‘Robot Arm’. From the base till the end …show more content…
• Highly recycle-able
4. Plexi-Glass :
It has only been used once in the whole project and that is to make the octagon shape of the rotating 360o base which is resting on the wheels. Plexi-Glass was a rectangular sheet which was cut in octagon shape using cutter and was later phi-led to achieve the desired shape and to perfect the edges they were chamfered. It is connected to the MDF mini base by a pin joint.
Since plexie glass is clear and transparent, it gives a clean and more clear look to the whole project and to see how the rolling wheels mechanism works. The surface of plexi-glass is smooth which provides enough friction for the wheels to rotate the octagon plate.
Advantages:
• It is only half as heavy as glass.
• Working with it is much easier because it can also be sawed, whereas glass must be scored.
• A transparency rate of 93% makes Plexie the clearest material known.
• A unique property of plexie is that it can be shaped easily.
• Strong enough to bear upto 15 N of