Week 8

During week 8 we tested our new design and got some statistics.  We do not have a specific type of sack to be put on the carrier so we had to improvise and use what was available in the room. We got some good data using a normal scale and some cushions and a backpack. We got the new dimensions for the new design and they are as follows:

Table 4. List of number parts and their frequencies

Length	Number of Parts
28 inches	2
16 inches	2
14 inches	3
9 inches	2

The data we collected is as follows:

Table 5. Data Collected to Determine Failure Weight

Group Member alone	136.8 lbs
Group Member + Frame	142.0 lbs
Frame alone (difference)	5.2 lbs
Group Member + Frame + Added Weight	162.8 lbs
Average Weight Held to Failure without Glue:	~ 20 lbs.

This updated carrier made the wearer able to balance themselves more easily and efficiently. It is similar to the method the Thai people were using before and may possibly be better received by their culture since it is less of a dramatic change. 

The carrier continues to slip out of its joints because we have not acquired the PVC glue yet. On Wednesday of Week 8 we plan to officially attach all the PVC pipes so that way more reliable and accurate testing can occur. We plan to test weight on the carrier going up stairs, up steep hills, and attaching it to the other transportation lab group's conveyor belt/pulley system. They ordered a metal hook similar to what would be found on a backpack. We plan to put a bar across the top in order to drill two holes for the hook to go through to carry the carrier on the pulley system.