Tuesday 14 August 2012

Critical Evaluation in Safety

Critical Evaluation In Safety

- Rider is wearing gloves, a helmet but no glasses, and therefore is not meeting the safety requirements in the area of their attire.
- No obviously sharp edges or protruding bolts, therefore design is safe in that area.
- The design is free of protrusions and is not capable of causing harm to fellow competitors or spectators.
- The rider is wearing knee and elbow pads, and an approved bicycle helmet.
- The design does not provide protection for the rider in the event of a collision or rollover - the rider would probably fall and injure themselves badly if that situation were to occur.
- The riding position appears to be of an acceptable angle, and would not cause the rider back injury. The seat is shaped in such a way that the rider will not slip under the seat belt. The seat appears secure and locked into position.
- The bike has an appropriate seat belt.

Overall, this design meets safety in most areas, however one outstanding safety issue would be the injury that could occur in the event of a rollover. It is probable that the rider would fall out and seriously injure themselves, making this an extreme safety hazard. There is nothing stopping the rider form falling out of the bike. Also, the rider is not wearing safety glasses, which could also pose a safety risk.




Saturday 11 August 2012

Energy Breakthrough Design

P - The rider is protected by a sturdy outer shell in case of an accident.
M - The front is rather pointy, posing a safety hazard if someone was to be hit by it.
I - The outside appears to be made out of metallic materials, or otherwise dense material.


P - Easy to get out of if a accident was to occur.
M- No outer shell protection for the rider if an accident was to occur.
I- No outer shell - I wonder if there was a particular reason for this?

P- Has no outstanding safety hazards - outer shell appears sturdy and no definite point at the front.
M- Quite small and light looking - would not hold up well in windy conditions or other bad weather.
I- Smaller than most other bikes.

P- There is someone wheeling the rider and two people are better than one in the case of an emergency.
M- Rider does not have much outer protection as there is no outer shell.
I- Someone else besides the rider is controlling the bike.



Thursday 23 February 2012

How to Use a Cube File

A cube file is used for sanding parallel with the wood, giving a straight finish on edges. The following is a video on how to use the cube file:





The cube file is perfect for filing the whole edge of a piece of wood evenly and making sure it is perfectly straight. Like other files, you only file in one direction, which in this case, is away from you. Because of this filing direction, you must make sure no one is standing opposite you, or you may accidentally injure them with the file.

How to Use a Curved File

The curved file is used for filing curved edges, preparing them for sanding. The following is a video on how to use the curved file:


As mentioned in the video, the curved file is only to be used in one direction, which is downward. The curved edge makes it easy to get to curved edges and sand them with ease, and prepare them for sanding.

How to Use a Flat File

The flat file is used to file edges to prepare them for sanding. The following is a video on how to use the flat file:

The video explains that, like some other files, only use a downward filing motion. This will prepare your wood for sanding and will file out imperfections.

How to Use a Coarse File

The course file is used to file down large amounts of wood for a various amount of reasons. The following is a video on how to use the coarse file:

When using this type of file, you only file downwards, not upwards. Use your free hand to support the file, as the coarse file can sometimes be difficult to operate smoothly. Continue filing until the edge is filed to your liking. 

How to Use a Hack Saw

The hack saw is a saw used for cutting metal into pieces. The following is a video on how to use the hack saw:

As mentioned in the video, this saw is similar to the rip saw, in that the downward stroke is more forceful than the upward stroke. Like many other saws, you must make sure that no one is in the immediate vicinity when you are using this saw, as you could severely cut or hit someone with the saw.