โš—๏ธ Invention Convention

Invention Convention Journal

๐Ÿ“‹ A Science & Engineering Journal  ยท  Eleanore Lindley  ยท  Kindergarten

๐Ÿ” Problem Statement

After art class we have to clean up our scraps which takes a long time. It's annoying to have to pick up all the tiny pieces. If we didn't have to pick up the pieces we would have more time to do art.

๐Ÿ’ก Solution

If you did all your messy work inside of a box, there'd be no scraps on the floor because they would be inside of the box. Then you could put the scraps in the trash from inside the box.


โœ๏ธ Early Design

If the box was cardboard you couldn't see through it. But if it was clear you could see through it. You wouldn't want it to be glass because it would break if you accidentally dropped it. If it was clear plastic, if you dropped it then it wouldn't break.

It has to be easy to work inside the box. So we could make holes for your arms. The plastic edges of the arm holes would be uncomfortable for your arms, so we could use a soft fabric around the holes.

It would be cool if we had a cup to put pencils and things in it.

Early design sketch
๐Ÿ”ง Execution
1

Once we had all of our materials, we started building.

All the materials laid out
2

First we measured the sides to mark a place for the holes. I decided I wanted the holes in the middle on each side.

Measuring the sides
3

I used a sharpie and a coffee pot to draw the circles. My dad and I traced the bottom of the coffee pot.

Tracing circles with a coffee pot
4

Then I drilled four or five holes in each circle. I picked the biggest chonkiest drill bit for the holes because the plastic was hard and it made it easier to put the clippers in later.

Drilling holes in the plastic
5

We used strong clippers to cut through the plastic and make the holes.

Cutting through plastic with clippers
6

I tested out the holes and they felt jagged.

Testing the arm holes
7

When we were drilling the plastic cracked on one side. We used gorilla glue to mend it.

Fixing the crack with gorilla glue
8

We used a piece of sand paper to flatten the jagged edges. The sandpaper didn't do a good job of getting rid of the jagged edges. But that's okay because we planned to put fabric around the holes.

Sanding the edges smooth
9

The fabric we bought was too big so we had to cut it in half.

Cutting the fabric in half
10

We wanted to glue the fabric together so it would stay folded but the glue didn't work very good so we figured out that putting dots of glue on it is better than a line.

Gluing the fabric
Dots of glue work better than a line
11

Then we glued the fabric to the sides of the hole. We realized that putting your head in the box was not good because there were fumes from the glue. Also, I got glue on my hands so I wore gloves for the next hole.

Gluing the fabric sleeve to the hole
Wearing gloves for the next hole
12

The fabric felt good on my arms.

The soft fabric sleeve feels comfortable
13

We wanted the cup to be able to hang from the box. We put together a metal hook made with screws but it kept falling off.

First hook attempt with screws โ€” kept falling off
14

We also found a clip, but I had trouble opening it.

Trying a clip to hold the cup
The clip was too hard to open
15

So we found a golden hook for hanging a picture frame and it worked. But we had to get it attached to the cup.

The golden picture frame hook
16

I used a blue plastic cup and drilled a hole in the cup. This time I started with a small bit so the plastic wouldn't crack.

Drilling a hole in the blue cup
Starting with a small drill bit
17

Then I used a bit that matched the hook size just right.

The perfectly matching drill bit
18

My dad flattened out the hook with his pliers.

Dad flattening the hook with pliers
19

And then I pushed the hook through the hole in the cup.

Pushing the hook through the hole in the cup
20

And then my dad bent the hook back into place.

Dad bending the hook back into place
21

We tested out the hook and the cup could hang from the box.

The cup hanging from the box โ€” it works!
22

We were finished building so I tested out the box. I made a kitty cat that could open its mouth. I cut out the kitty cat inside the box. There were no scraps on the floor.

Testing the finished box
Making a kitty cat inside the box
The kitty cat craft project
No scraps on the floor!
23

It was easy to pour my scraps in the trash when I was done.

Pouring scraps into the trash
Clean floor โ€” the invention works!

๐ŸŽ‰ Invention Complete! ๐ŸŽ‰