Summer Session 2023 Projects 1
Up 主发这份纸质老鼠笼的说明书只是为了分享一下在 JHU EI 夏校里得到的第一个任务——只用硬纸（σ>= 110g/sq m)、 橡皮筋和固体胶制作一个触发机关后，能够在摇晃、倒置情形下而不致使其中乒乓球（“老鼠”）掉出来的“捕鼠（球）笼”。
此装置及其说明书的制作耗时7小时。机关敏感，结构简单，多出使用榫卯结构代替胶水提升结构强度（但是部分结构借鉴已有老鼠笼的设计）。并且，由于任务ddl在一天之内，所以，这个装置又有另一特性——很费Up。
（ Tips: 本说明书由全英文写成，因为此项目审核人员是英文母语者。）
1. General Design:
(1) Fixed parts: 5 pieces of stiff paper with holes on them (at predetermined positions);
Fixation structure of the axle;
They are shown in the pictures below:
(2) Moving parts: 1 axle (connects the moving part with the fixed parts);
1 picec of stiff paper;
2 piece of rubber band and their fixation structure;
1 paper hook and its fixation system;
They are shown in the pictures below:
2. Set up: (You should first make all the separate parts as shown in the diagram)
STEP 1:
Material: Fixed parts: (Left, right, top, bottom, back) stiff paper
Hands on: Insert the extend parts of each piece of stiff paper into the gap on each piece
of stiff paper.
Tips: First set up left-right and top-bottom side of the trap, then fix the back side with the whole body.
STEP2:
Material: Moving parts: 2 fixation structure of the rubber band
Hands on: Insert the two structure into the holes on the left and right side of the main
body of the trap.
Tips: Make sure half of the fixation structure is outside the main body.
STEP3:
Material: Moving parts: Trap’s door connection part;
Trap’s door;
Glue stick;
Hands on: Glue the trap’s door and trap’s door connection part together.
Tips: For more durable design, wrap and glue a piece of thick paper around the connection.
STEP4:
Material: Moving parts: axle;
glue stick;
Hands on: Fix the axle with the trap’s door together.
Tips: Position of the axle: 1 cm below the top side of trap’s door and parallel to the top side; the same method as mentioned in STEP3 for a more durable design.
STEP5:
Material: Fixed parts: Fixation structure of the axle.
Hands on: Fix the fixation structure of the axle with the left and right side of the main body.
Tips: align the bottom side of the hole on the fixation structure of the axle with the top side of the left or right side of the main body.
STEP6:
Material: Hook and fix;
Hands on: Insert the fix into the hole on the hook, insert the hook and fix into the hole on the top side of the main body from inside.
STEP7:
Material: 2 Rubber band;
2 rubber band fixation structure;
Hands on: fix one end of the rubber band around the rubber band fixation structure on
the main body of the trap;
Fix the another end of the rubber band with trap’s door using rubber band fixation structure.
Tips:While trying to fix the rubber band on trap’s door, first let the end of the rubber band go through the hole, then insert the rubber band fixation structure into the space between the trap’s door and the rubber band.
The trap is set up, it should be like this:
To use, hang the upper end of the hook on the end of the trap’s door connection part.
Additional Part (tips: 此部分内容不属于这个project的一部分，为Up另行添加）
If you have any problems regarding the constructive work, please contact the designer. As compensation for your time wasted, the designer will give you -2 coins! Don't forget about that!
