User:Zblaha2768/enes100/Rubberband gun

Link to project ZSN team page.

Give instructor top 3 project choice list
1. Rubberband Gun 2.Rube Goldberg 3. StrandBeest

Write problem statement
To explore how to fire rubberbands automatically from a gatling gun style assembly.

Assign Task1
Brainstorm and research ideas for the rubberband gun.

Compare actual work done to Task1
Some research was done, hoping that some of the ideas will prove useful to the design. Specifically, a firing mechanism based on a firing mechanism I found on youtube, which uses a slanted piece of material to knock rubberbands out of notches situated along the gun's barrel.

Week1 Narrative
Team gathered to brainstorm ideas. I brought up my firing mechanism, but it was rejected because it was not a gatling gun style mechanism. A different, more appropriate design was chosen, based off designs from the same youtube user, which uses an external motor to spin the barrels and also pull the rubberbands off their notches using string, launching them forward.

Week1 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:32, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task2
Begin designing/ proof in concept prototyping the rubberband gun.

Compare actual work done to Task2
Spent more time prototyping rather than design, however prototyping is what needed to be done.

Week2 Narrative
Team gave presentation on what was accomplished so far. Used [] as a visual aid to show what we based our rubberband gun on. An initial proof in concept prototype of the barrels and connector pieces was made using cardboard and dowel pieces. Unfortunately, due to the connector pieces being made out of cardboard, the system was unstable. New connector pieces were made out of plywood and are much more stable, the working prototype of the barrels is complete.

Week2 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:32, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task3
Start construction of a mount of some kind (turret style? assault rifle style?). Find a motor that can be used for the spin function. Begin research/design of a self loader mechanism.

Compare actual work done to Task3
Spent more time modifying the barrel assembly and making pieces to secure the barrel assembly to a base.

Week3 Narrative
I made new barrels by inserting notches into dowel pieces. Re-sized some holes on the connector pieces. On Thursday, neither of my team members were present, so I made some pieces out of wood to secure the barrel assembly to a potential base.

Week3 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:33, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task4
Begin construction of a base assembly, including things like a trigger mechanism, stock, and motor to spin the barrels/release the rubberbands.

Compare actual work done to Task4
Base was constructed, although no useful motor was found, so a hand drill was used.

Week4 Narrative
The base was constructed out of plywood and 1" dowel material (handle). This entire assembly was attached to the barrel assembly. Using a hand drill, the gun was test fired, but it constantly jammed. The likeliest solution to this problem would be to sand down the pins, however this was not implemented due to time constraints.

Week4 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:33, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Complete Project Page
Follow the "project done" format.

Start Next Project Week0 activities
During this week you will perform the week0 activities of the next project.