Gizmos and small creations 20, Gizmos and small creations

There's a lot of it here, and there's a picture

Clean the mouse.

Introduction: The clean mouse is improved by installing a grating wheel shaft cleaning sheet inside the original computer mechanical mouse, which is easy to install without changing the original structure. It completely solves the problem that the mouse pointer fails due to the dirty scroll wheel in the use of the original mechanical mouse in the computer. In use, there is no need to open the mouse bottom cover to clean the roller, especially in the school computer room, which can stick the bottom cover, prevent the mouse wheel from being lost, and reduce the trouble of cleaning the mouse.

It saves the cheap and high-quality mechanical mouse from the obsolescence of the most expensive optoelectronic mouse, and gives the "ancient" mechanical mouse a new life.

Improvement ideas: mechanical mouse in use due to the wheel dirty and affect the failure of the mouse pointer failure is common, even if the mouse bottom cover is often opened to clean the wheel, can not solve many problems, the school computer room therefore often loses the mouse wheel, resulting in mouse damage. The existing people began to use the most expensive photoelectric mouse to upgrade and eliminate to solve this problem, which obviously will increase a lot of expenses for every computer user, especially the school, and at the same time, the ordinary photoelectric mouse also has a low positioning accuracy, and it is easy to lose the cursor when moving quickly suddenly. Observing the inside of the mechanical mouse, it was found that the cause of the pointer failure was the dirt and dirt on the contact surface between the grating axle and the roller.

I learn from the principle of cleaning the wiper blade of the roller and other rolls, and use the thin plastic sheet to install the grating axle cleaning blade, which completely solves the failure of the mechanical mouse pointer.

The three sexes of the work:

Scientific: Using the elastic pressure of the thin plastic sheet, the grating wheel axle can be "scraped" and cleaned at any time, without affecting the normal operation of the mechanical mouse.

Advanced: automatic cleaning instead of manual cleaning.

Practicality: It completely solves the failure of the mechanical mouse pointer and reduces the trouble of cleaning the mouse frequently.

A small fan, just a small motor, two size 5 batteries, some short wires, a solid plastic foam, a pair of scissors, some pieces of cardboard!

First of all, hollow out the solid foam, connect the small motor with a wire, stuff it into the foam (to keep the rotor shaft of the small motor leaking foam), connect the wire to the battery, also stuff it into the foam, cut the small piece of paper into rows with scissors, and put it on the rotor shaft of the small motor!

Sprinkler bottles. Just take a jar and poke a few holes in the tail.

Take an empty egg shell and coat it with wax (be thin).

Paint on it with a pointed object (to carve through the wax).

Put it in vinegar for a few hours, take it out and get rid of the wax.

The color of the carved place is darkened with acetate.

It's a small production!

Find a concave reflector bowl on a large flashlight, and use rigid styrofoam or wood to cut a cylinder about 4 cm long, with a diameter just enough to fit into the reflector. Drill a fine hole transversely at one end of the cylinder, insert a wire with a diameter equivalent to the diameter of the hole, and then fold the two ends of the exposed wire into 90°, leaving 5 cm each. Insert the cylinder into the hole in the reflector and insert the ends of the wire into a styrofoam or wooden baseplate.

Sharpen the two ends of a thin bamboo skewer, insert one end into the cylinder of the reflective bowl**, and insert a small piece of potato at the other end. Place the device in the sun so that the reflector is facing the sun, and then patiently adjust the length of the skewers so that the potatoes are in the right spotlight. It won't be long before the potatoes are roasted in the sunlight and give off their aroma.

Summary. Hello dear! There are many interesting things that little inventors can invent, such as:

1.Children's smart watches help children learn clock, timing, positioning, safety and other knowledge. 2.

Green lighting fixtures to help save energy and reduce light pollution. 3.Build a home intelligent system to help family members remotely control home appliances, security equipment, temperature, etc.

4.Exercise assistant to help people carry out scientific fitness, reasonable diet, and maintain good physical health. 5.

Small, sustainable energy installations that help provide basic living services such as tea, electricity, and lighting. 6.3D printed potted plant device helps people to grow green plants in a small space.

A little inventor can invent anything that interests him, but he can't do it. 

Hello. Why do you charge twice?

Money doesn't help yet. Please reply.

Hello dear! There are many interesting things that little inventors can invent, such as:1

Children's smart watches help children learn about clocks, timing, positioning, safety and other rental failures. 2.Green lighting fixtures help save energy and reduce light pollution.

3.Build a home intelligent system to help family members remotely control home appliances, Anzhao search and defense equipment, temperature, etc. 4.

Exercise assistant to help people carry out scientific fitness, reasonable diet, and maintain good physical health. 5.Small, sustainable energy installations that help provide basic living services such as tea, electricity, and lighting.

6.3D printed potted plant device helps people to grow green plants in a small space. A little inventor can invent anything that interests him, but he can't do it.

Dear I am the first time I received your question, and I did not receive your money twice, you can find customer service if you have any questions.

Fluorescent badminton can also be played at night.

First of all, buy phosphor or phosphor liquid. Carefully apply it to the shuttlecock (fluorescent things are poisonous) If it is a fluorescent liquid, it should be dried, and the phosphor should be the same.