Mini knife for cutting heating pipes

Fixtures

Added 9 comments

Hello everyone !!! Most recently, floor heating was installed at work from polypropylene pipes, often it was necessary to cut the pipes, but as there were no special scissors, it was necessary to saw with a hacksaw for metal, and this causes a lot of inconvenience, then you will cut off crookedly then the fittings will run, then you will cut it in a hard-to-reach place, and this ah how not convenient.

After a little thought, I decided to quickly collect something like scissors for cutting pipes, and it seemed to work out just right.

And so we need: profile 25x50mm, a bolt with four nuts, a strip of iron 50x300mm, two plates with a hole for the ears and a standard set of tools - this is a grinder, a drill, welding.

Here is our profile

As I said: 25x50mm, and a sheet of iron 5cm wide, 2mm thick and 30cm long

Well, that's all the stuff.

Getting started. We make a cut in a 20cm profile on the side wall exactly in the middle with a cutting disc

From a strip of metal we form, as it were, a blade and a handle

Now we sharpen the blade, round the tip of the blade, remove all sharpening along the edges, drill a hole 6 mm, backing a little from the edge

We pass to our ears, such ears

We take the ears, try on in their places and weld on both sides. Not forgetting the symmetry of the parties. First I welded one side, then I centered the second side with a bolt and welded.

Well, you can try on, the scissors are almost ready

General view of the product

Now proceed to fastening the blade. I put the bolt through the eye, screw the nut, tighten the bolt a little, put the blade, screw another nut and on the other hand screw another nut, and we all counter

I decided to weld a pad from a strip of metal for stability

So that the blade does not warp, I take a 6mm wire rod

I weld drops to the top of the blade

Well here is our device done. On this day, I cut a lot of pipes - these scissors for small pipes up to 20 mm. You can forge the blade from good steel then a larger diameter can be cut, and overall it’s not bad.

Good luck to everyone and to new homemade

March 30, 2019 10:13 p.m. +3

Reply To quote A complaint

Perhaps you are here the most, most talented author. I will not argue ...
Only now ... I, a hand-clasped one, have scissors for pipes ... But somehow I didn’t have it at hand (I forgot in the country) - I cut with a circular knife for copper and railing pipes, and then chipped .. .
And, mind you - I do not work with pipes, heating and plumbing !!! (I generally work in the office) ... And to make such crap a person who mounts floor heating ....
... Many of those who are sitting on this site may not have such penny tools ????
Sorry, but ... Although I myself am a "sick with a head" master ... Although I myself often do what you can just buy, or without which you can do, but ...
I repeat: You need to do this in three cases:
1. Homemade has some parameters that are not available for purchased counterparts.
2. Homemade saves significant money.
3. Self-made at the same time allows you to "attach with good" trash, which is nowhere else and no good for anything.

The third paragraph only "enhances the effect" of the first two. Because it’s also impractical to make another one out of one rubbish, purely for the sake of “cool work”, and not for practical use.

March 30, 2019 10:01 p.m. 0

But here is just the moment when the purchased is not expensive and much more convenient !!!

March 30, 2019 2:48 p.m. +1

I specially circumvented the time of purchase of such scissors, offering them to borrow from friends. After all, they would recall to me my words about "you can, of course, buy ..."

March 30, 2019 10:37 0

Do not look at the profiles of commentators, homemade -0 or hand-to-hand. Like for trying, everything comes with experience.

March 29, 2019 11:51 p.m. 0

What does this not suit?

Read the headline carefully! Keyword - mini!!!

March 29, 2019 11:41 p.m. +3

I have always used such a cheap tool for cutting metal and polypropylene:

What is the problem? What does this not suit? It cuts quickly, cleanly and (with even hands) very evenly. Sawdust does not leave. Places takes many times less. The weight in them is also significantly less. They stand - approximately, like the iron that was spent))))
And, most importantly, you do not need to carry a pipe to them !!!! They themselves will crawl to where this pipe lies !!!
What is the problem? What does not suit you?

March 29, 2019 9:06 p.m. +1

Oh, nada is ... Bosko cut geese and cocks ...

March 29, 2019 5:33 p.m. +2

Dear Author, please answer a few questions:
1. What material is the knife of this guillotine made of and what is the angle of its sharpening?
2. Does the PP pipe slide along the base during cutting?
3. Is it convenient to use the device where

, then you’re drinking in a hard-to-reach place, but this is not convenient.

?
4. You called your homemade

You consider the dimensions

25x50mm, and a sheet of iron 5cm wide, 2mm thick and 30cm long

mini?
5. I would like to see a photo of a pipe cut made by this device.
6. And finally, it was worth it, to fence the garden, scissors could be borrowed from friends and if you feel sorry to buy. I am not against a homemade tool, on the contrary, I am only for it, but only if it is at least somewhat better than the purchased one.

March 29, 2019 17:27 0

What wildness, how will you fix the pipe so that it does not slide on a flat bed?

Mini knife for cutting heating pipes

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