Budget tools for cutting of foam plastic: DIY

Portal users share their experience improvised tools for cutting of extruded polystyrene foam and nichrome filament

Termorezak. Machine for cutting foam. Mobile "goat" for cutting styrofoam. In electrical devices, made of nichrome filament Latro, transformer or the computer power supply has many names. He always find application. Make Wet facade on the basis of the foam. Produce carved decoration for the walls or different crafts from PPP. Another plus - termorezak cut foam and Epps faster and better than a hacksaw or knife. It is easy to make it with their own hands. We offer you 4 types of machine tools for cutting foam polystyrene, from trehkopeechnyh - collected from all "unnecessary", to the most advanced - on the basis of the welding inverter.

Content:

• Machine for cutting foam - photo and circuitry
• Mobile "goat" for cutting Styrofoam to work on scaffolding
• How to make a machine for cutting faculty on the basis of the power supply from the computer
• How to turn the welding inverter machine for cutting of foam plastic
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• What is the danger termorezaka made based on laboratory controlled auto-transformer - Lattre

Homemade cutting machine foam from LATR, nichrome filament transformer and

Most termorezak Homebrew is made of what is at hand. If that and buy it - Nichrome thread. The rest are scraped bottom of the barrel. This is what a user with the nickname FORUMHOUSE Electron.

Electron

I insulate the house foam. Bought PPP thicknesses of 5 and 10 cm. First, cut him with a knife on a ruler. Uncomfortable. I decided to make a machine-termorezak for expanded polystyrene. it went fast with him. For making it necessary for me:

• table-bench (he was available);
• aluminum corner;
• aluminum profile;
• steel angles;
• wooden block section of 5x5 cm;
• chipboard sheets remaining from the old cabinet;
• transformer at 650 watts and 36 volts and LATR (were economy);
• nichrome wire 0.5 mm in diameter 5 m (bought on the market).

The machine for cutting faculty member has done so - missed Nichrome thread through the hole in the table. The yarn passes through a ceramic socket from radio tubes. To tension wire Electron I took the pin M10 nuts. With one edge of it and to grind off dihedron drilled lateral hole. It slipped spring. end of the spring he held in a plastic brass terminals. The second end terminals clamped string and feeder cable. It is necessary that the current does not go through the spring, and it has not lost springy properties. After energization, nichrome filament tension is adjusted using pins.

The spring compensates for the change in length of nichrome filament during its heating and cooling.

Schematic diagram of the machine for cutting an improvised foam.

Electron

I cut on the machine size 1.2h1 m sheets. Made about 150 cuts a foam string. Not burned. Cutting speed PPS 100 mm - 10 cm per second. Be sure to make a third point mounting thread. In my case, it is - the hole in the table, which is fixed on the ceramic socket radio tubes. Optimum filament - not to red, and so that it was barely visible in the dark. .E. - almost dark.

Mobile "goat" for cutting foamed plastic

The above-described machine is operated permanently. However, when installing wet fronts on the basis of polystyrene, workers have to move on scaffolding. Dissolve thickness sheets. Cut out PPP shaped elements and t. D. Heavy machine is inconvenient, and down every time down do not want. Exit? Make your own hands termorezak mobile, t .N. "Goat".

OlegLvovich

Specialist wet assembling facades

On the facades we work with mobile "goats." They are easy to move through forests at a height. You can cut the foam directly on site. Dissolution of the sheet thickness are conducting two profiles. Profile attached to the PSP with nails. How to work with to adapt can be clearly seen in the video below.

The cutter is made on the basis transformer 250 W, which gives 36 V. Rod Length 1370 mm.

OlegLvovich

Cutter has worked on the facades of the four seasons. Three times he fell from the scaffolding. It is not broke. String is not changed. The second cutter operated three seasons. The wire was changed 5 times. I burned. The reason - he has a string shorter than 10 cm than the first cutter.

If there is a transformer, the expenditure for the purchase of necessary parts for termorezaka not exceed 1000 rubles.

Mobile electric circuit of the machine for cutting foam.

And in this video, the user FORUMHOUSE dymon He describes in detail how to make a similar nichrome cutter with his hands.

Machine for cutting foam on the basis of the power supply from the computer

Not all domestic masters in the bins lying around the transformer, but a lot of dust around the power supply from the old computer. It is good that you have not thrown out. It is useful to make termorezak to foam.

OnlyOn

user FORUMHOUSE

I assembled for foam cutter for 3 pennies. I use a power supply from the computer, and all that were lying on a construction site - boards, rails, screws. String made, spiral stretching from the appliance. 10 cm length of the helix. From it turned straight wire length 60 cm, 0.5 mm in diameter. The question price - 45 rubles. Tensioner strings - a hammer. Adapt assembled on the screws. String powered by plugging in the power supply yellow wire 12 Volts and the total black wire.

wind1wind

Super Moderator FORUMHOUSE

To run a computer unit ATX standard power output shorting green PS-ON to GND (common). The photo below, pinout terminals 20-pin connector on the motherboard. On board the power supply output in a mirror image.

How to cut the foam using a welding inverter

In many suburban residents have a welding machine. Svorochniku ​​everywhere will find application. Put up a fence. Collect homemade machine. Podvarit broken instruments. And if you use it as a power source for termorezaka of expanded polystyrene? Do you think the idea of ​​working?

alexxxxx

user FORUMHOUSE

Taking the inverter, I assembled a machine for cutting foam. Welding inverter has a current intensity regulator. With it you can easily find the right value for the cutter.

The idea sparked increased interest in the portal users.

Morgmael

user FORUMHOUSE

I cut the foam using svarochnika. For clarity, I shot a video.

Not every welding inverter suitable for this role. HOT START function(Hot start) and ANTISTICK (Feature, automatically reducing welding current at the electrode is stuck, thereby preventing its calcination) may prevent inverter welding machines operate as a conventional power supply machine for cutting foam.

Morgmael

I tried to attach to another svarochniku ​​resistance slightly larger than the Nichrome thread. He immediately took off current, t. To. Antistik load.

Danger manufacturing termorezaka based Latro

Adjustable auto-laboratory is often used in the manufacture of home-made termorezakov. So did the user FORUMHOUSE Sidyakin.

Sidyakin

I gathered cutter for the dissolution of the foam. The basis of the machine - a cover of the desk. Another took two studs, nuts, washers, spiral from the electric, LATR and switch.

OlegLvovich

I can see in the photo, which is exposed to the cutter 40 Volt. On my cutter transformer produces 36 volts. I advise you to be careful to work with Latro. If there is a breakdown, the voltage goes to the wire 220 volts.

Anton48

user FORUMHOUSE

I also want to make a machine for cutting foam. Nichrome thread take of the old electric. Yet I have LATR-2M. Go to a cutter? There are six outputs. I do not understand, and where to connect the network and load?

Andrei-AA

user FORUMHOUSE

On one such Latro can not work -.. Dangerous, you can get under 220, that is to LATR not untie the output from the input regardless of the voltage on it. Need or additional transformer, or - to connect the inputs and outputs are strictly "zero zero". T. e. — without plugs and sockets, and at the time, knowing exactly where zero, and where the phase.

Electron

Such a system can not be phased for security. To ground from nichrome filament will always be a dangerous voltage. This is an auto. I need another transformer at the input. Look, like I did. Schematic diagram at the beginning of the article.

conclusions

Practice has shown that the most successful versions of electric cutters for the foam are obtained on the basis of conventional transformers and Latro. Option - use a power supply from a computer, too, working. But have experimentally select the optimal length of nichrome filament, depending on its diameter and power parameters.

When working with a homemade termorezakom remember about the possibility of electric shock, and the probability of getting burned. Observe safety precautions. When cutting the foam red-hot nichrome wire emit harmful substances. Work outdoors or in a well ventilated area.

We have questions about termorezakov designs, or want to offer its own version? Come on FORUMHOUSE portal to this topic Machine for cutting foam, Ask the experts and share their experiences.

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