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Dec 29, 2020
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How to make a knife from a soldering iron to cut acrylic, plexiglass, plastic, PVC and foam

If you need to make complex cutting of plexiglass, plastic or sheet acrylic, it is very convenient to use a hot cutter. It goes through these materials like clockwork. Such a device can be made in just 5 minutes.

How to make a knife from a soldering iron for cutting acrylic plexiglass PVC plastic and foam

What you need:

  • electric soldering iron 60 W;

    electric soldering iron 60w

  • assembly knife blade;
  • long bolt M5.

    long bolt М5

The process of making a cutter from a soldering iron

The standard tip must be removed from the soldering iron. Instead, it is required to install an M5 bolt cut along the side of the head to a depth of 10-15 mm.

The standard tip must be removed from the soldering iron.  Instead, it is required to install an M5 bolt

Making a thin cut is important, so it is best to use a hand jigsaw for this.

Saw the bolt with a hacksaw

A broken segment from the cutting knife blade is inserted into the bolt inserted into the soldering iron. The torch is then tightened with screws.

Broken blade

Insert the sawn bolt into the soldering iron

Install the blade piece and fix it with screws

Now, when the soldering iron heats up, the blade will cut through the plastic very quickly and accurately without leaving wide beads of melt, as happens when using a hot wire.

We cut plastic

Smooth edge of cut plastic

We cut acrylic with a homemade cutter

We cut plexiglass with a homemade cutter

Smooth cut of plexiglass

In favor of such a homemade product, one can also attribute the fact that after work, the standard tip returns to its place, and the soldering iron can again be used for its main purpose.

the standard tip returns to its place, and the soldering iron can again be used for its main purpose

Watch the video

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