Το σύρμα πρέπει να είναι 0,2 μέχρι 0,5 χιλιοστά γαλβανιζέ και να βάλετε ένα διακόπτη ,αν το κρατήσετε πολύ θα κάψει το σύρμα δεν υπάρχει πρόβλημα με την μπαταρία,το καλώδιο που συνδέουμε να είναι πιο χονδρό 5 φορές από το σύρμα
ευχαριστω
Styrene foam cutters are quite simply a cutting chord, (made out of a piece of thin wire) that is getting hot by electric power, and allows the cutter to cut through the foam easily and without leaving any side damage. The same can be done with a single piece of wire that can be tightened around two vertical metal rods, forming a simple foam cutter. The electricity can be provided from a simple 12V car battery, and it will pass through the wire, getting it hot enough to melt the foam and make a nice, clean cut.
The chord wire needs to be between 0.2 to 0.5 mm thick and it can be made from galvanised steel wire, the kind that is sold in wire spools for a couple of euros in hardware stores.
The cable to power the cutter needs to be about 5 times the thickness of the cutting chord, so as to transfer enough power to heat it up. A switch is a must, because if you leave the cutter connected to the battery for long enough, it will melt the chord and burn it. Not much of a problem though because you'll still have a whole spool of it. The battery will not have a problem of blowing up, because the chord itself acts as a fuse. It's thin anough to burn even before any damage is done to the battery.
However, it is wise and recomended, to simply turn on the power only when you need to make a cut, and then turn it off immediately.
As I mentioned, it is a simple project, just to allow us to cut through styren foam, and not a professional construction.
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6 янв 2020
