Summary: Memo # 3: Critical Design Review
To: Dr. Schmidt
From: The STEMinists
Subject: Memo #3: Critical Design Review
Date: November, 1 2017
This is a critical design review for the escape room design project. First, the review contains a final sketch of the team's concept design including specific dimensions and illustrations of all of the different functions. Next, both proofs of concept one and two are presented and analyzed based on results from the initial testing. These were incorporated into the alpha prototype which is then discussed in detail. Special notation is given to all changes made from the preliminary design and concept sketches to the alpha prototype. Afterwards, all further plans for the beta prototype are outlined for the continued development of the design. …show more content…
A string with a paperclip on the end (for ease of attachment) was fastened to the door latch. The other end of the string was run over a pulley that was positioned on a stand several inches above the latch. A small cup was tied to the other end of the string and hoisted up several inches into the air. When the marble was dropped into the cup, the weight of the marble pulled the string and the pulley changed the direction of the tension causing the string to pull up on the door latch and open it. In the complete Alpha prototype, a golf ball is used instead of a marble and it rolls into the cup from a slide. For simplicity during the proof of concept, the marble was manually dropped into the …show more content…
In the second memo, it was decided that concepts 2 and 3 would be merged into one design. That design would be activated by a string pulling taught on the back of a water bottle causing water to flow out onto a series of gears. The gears would then turn and flip a switch, completing a circuit, and turning on a small fan. This fan would then blow loose baking soda into vinegar and the two would react and expand. The expanded chemicals would then push a marble that would roll down a series of slides and into a cup on one side of a pulley. Finally, the weight of the marble would cause the pulley string to pull up on the door latch and open it. During testing and construction, it became apparent that several of these energy transformations were inaccurate and ineffective and several critical changes were
From: The STEMinists
Subject: Memo #3: Critical Design Review
Date: November, 1 2017
This is a critical design review for the escape room design project. First, the review contains a final sketch of the team's concept design including specific dimensions and illustrations of all of the different functions. Next, both proofs of concept one and two are presented and analyzed based on results from the initial testing. These were incorporated into the alpha prototype which is then discussed in detail. Special notation is given to all changes made from the preliminary design and concept sketches to the alpha prototype. Afterwards, all further plans for the beta prototype are outlined for the continued development of the design. …show more content…
A string with a paperclip on the end (for ease of attachment) was fastened to the door latch. The other end of the string was run over a pulley that was positioned on a stand several inches above the latch. A small cup was tied to the other end of the string and hoisted up several inches into the air. When the marble was dropped into the cup, the weight of the marble pulled the string and the pulley changed the direction of the tension causing the string to pull up on the door latch and open it. In the complete Alpha prototype, a golf ball is used instead of a marble and it rolls into the cup from a slide. For simplicity during the proof of concept, the marble was manually dropped into the …show more content…
In the second memo, it was decided that concepts 2 and 3 would be merged into one design. That design would be activated by a string pulling taught on the back of a water bottle causing water to flow out onto a series of gears. The gears would then turn and flip a switch, completing a circuit, and turning on a small fan. This fan would then blow loose baking soda into vinegar and the two would react and expand. The expanded chemicals would then push a marble that would roll down a series of slides and into a cup on one side of a pulley. Finally, the weight of the marble would cause the pulley string to pull up on the door latch and open it. During testing and construction, it became apparent that several of these energy transformations were inaccurate and ineffective and several critical changes were