In this short article, we will look at making a simple PVC pipe feeder and making indicators that indicate the feed level. One indicator is completely mechanical, the second device has an electrical signaling device. In fact, these are two different homemade products by two authors.
In the first homemade product, a master with the nickname flodato makes a PVC pipe feeder. Inside the trough, a load is suspended on a fishing line. The other end of the line is brought out. As the feed in the trough decreases, the weight drops, and the rope with a wooden handle at the end rises.
< a href = "https://usamodelkina.ru/uploads/posts/2021-05/1620924450_1-3.jpg" rel = "prettyPhoto"> < a href = "https://usamodelkina.ru/uploads/posts/2021-05/1620924430_1-5.jpg" rel = "prettyPhoto"> < a href = "https://usamodelkina.ru/uploads/posts/2021-05/1620924430_1-7.jpg" rel = "prettyPhoto"> Second homemade product from another master. The feeder is also made of PVC pipe.
But the indication is slightly different.
First, the craftsman cut and glued a wooden washer. The washer is made in such a way that it does not dangle in the pipe and does not get stuck.
< a href = "https://usamodelkina.ru/uploads/posts/2021-05/1620924476_1-13.jpg" rel = "prettyPhoto"> В the side surface of the washer needs to drill a hole and install a powerful neodymium magnet. Magnet dimensions: 19 mm diameter and 30 mm length.
Next, you need a plastic tube. The master took it from some of his old homemade products. A metal ball will slide along this pipe.
This the ball at the bottom of the tube will press on the end switch fixed on a vertically installed board.
< a href = "https://usamodelkina.ru/uploads/posts/2021-05/1620924483_1-24.jpg" rel = "prettyPhoto"> < a href = "https://usamodelkina.ru/uploads/posts/2021-05/1620924494_1-26.jpg" rel = "prettyPhoto"> When the limit switch contacts are closed, the signaling device will turn on. The master made it from an old LED flashlight.
You can watch the video a demonstration of the operation of such a feeder with a signaling device.