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Make plenty of tries to reduce foam using what ever you have received — utility knife, hacksaw, serrated plastic knife — and you’ll want hard for some thing that cuts cleaner, speedier, and greater. Whilst there are all kinds of techniques to create a sizzling wire foam cutter, this structure from [jasonwinfieldnz] is both equally appealing and imitable.
The appealing element of this construct is that as an alternative of applying a spring to hold stress on the nichrome wire, [jasonwinfieldnz] developed and 3D-printed a bow out of PLA that does the job elegantly. When [jason] was in the beginning concerned that the bow may quite possibly melt, he located in follow that while the bow does get warm to the touch, it is nowhere in close proximity to sizzling ample to even warp.
A person good touch is the very simple fence that rides alongside two slots and secures with wingnuts. We also like that [jason] manufactured this foam cutter largely from scrap substance, and rather than buy a spool of nichrome, he opted for a skinny heating component and pillaging the wire.
If you’re a nichrome noob, know that it doesn’t choose substantially juice to do the job. Even nevertheless a computer system energy source is what [jason] had lying all around, it is total overkill, so you would surely want to restrict the present. Verify out the build online video just after the split.
However not moveable adequate for you? All you definitely need to have is a 18650, some nichrome, and a number of bits and bobs to keep it all collectively.
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