The video demonstrates how to make homemade concrete washers that are durable, beautiful, and inexpensive. The creator, with the help of civil engineers Fernando and Amanda, uses a combination of cement, fine sand, gravel, white glue, and steel to create the washers. They test the resistance of the washers by dropping them from a height and find that they can withstand the impact. The video also shows how to make a homemade bar using a broomstick, pipe, and EVA. The creator compares the cost of their homemade washers to store-bought steel washers and finds that theirs are approximately 20 times cheaper. The video concludes with a series of tests, including a drop test, to demonstrate the durability of the homemade washers.
Here are the key facts extracted from the text:
1. The creator wants to make a homemade concrete washer that is resistant, accurate, and beautiful.
2. The creator asks for help from civil engineers Fernando and Amanda.
3. The concrete washer can withstand a two-story drop.
4. The creator uses a basin, PVC pipe, and hot glue to create a mold for the washer.
5. The materials used to make the washer are CP2 cement, fine sand, gravel 0 or 1, white glue, and 4.2 mm diameter steel.
6. The creator uses a wire armature to increase the washer's resistance.
7. The creator applies a release agent, such as soybean oil, to the mold to make it easier to remove the concrete later.
8. The creator mixes the concrete using a ratio of water and cement, and adds white glue to improve workability.
9. The creator vibrates the concrete to remove voids and make it more resistant.
10. The creator leaves the concrete to rest for at least a week before removing it from the mold.
11. The creator applies putty to remove imperfections and smooth out the surface of the washer.
12. The creator sprays paint the washer black and adds a stencil with white spray paint.
13. The creator makes a homemade bar using a broom stick, pipe, and EVA glue.
14. The creator tests the washer's weight accuracy and finds that it has a 1% error.
15. The creator tests the washer's resistance by dropping it on the floor, and it withstands the impact with some damage.
16. The creator estimates that the cost of making the washer is R$0.70 per kilo, which is 20 times cheaper than a steel washer.
17. The creator plans to make a video showing how to make the washer and test its resistance.