Made a mineral wool knife from an old saw. Saved 546 rubles
I always share my best practices, and I don’t forget to look at my colleagues. The people are rude, they make cool things, but they especially like it when the product is simple, useful and made of rubbish. So it happened this time, the master on YouTube, made a knife for thermal insulation from an old saw, I remembered. Only there was no where to apply, but just then the case turned up, the neighbor had to insulate the ceilings.
How to make
I remembered the video, found an old saw in my house, drew it arbitrarily in the shape of a knife, cut it along the contour with a grinder.
Then I changed the cut-off wheel on it to a petal one and sharpened my new cutter. Looked like a pirate in adventure movies, time to check it out.
How does it cut
To be honest, I doubted that this old piece of iron would cut it, but... The result was higher expectations, even at first carried out several times along the cutting line, and then saw that he was cutting from the first times.
The roll of insulation was wound in two layers, first cut one at a time, and then became insolent and tried to go through two at once, and went, cool. The main thing is that there is a relatively flat surface under the bottom!
Saving
I decided to ask if there are such knives on sale, and they were, here is the most inexpensive knife STAYER 09592. Prices for such a tool are from 500 and above, but here they are out of junk and for free. Hope you find this example useful!