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Old 08-31-2015, 02:34 PM   #1
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help with plastic mealter & vacuum sealer


I need help, I wanted to make a plastic vacuum mealter and sealer. For the part to melt the plastic I wanted to use heating rods, of some sort, rather than the electric skillet version I saw online. I need help with the electrical can anyone tell me what I would need.

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Old 08-31-2015, 02:43 PM   #2
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Nichrome wire with a reflector behind it. Start with a Google search for "hot wire bender", the heating element design should be about what you're looking for, assuming I've interpreted your vague intentions correctly. If you've got a grasp of electronics, it's fairly simple.

If you don't, you'll want to find someone local to give you a hand. Got a hackerspace somewhere near you? https://wiki.hackerspaces.org/List_of_Hacker_Spaces

If you're lucky enough to have one nearby, you can probably find some people to help you out.

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Old 09-01-2015, 02:19 PM   #3
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so my plans were to have heat on one side that melts the plastic then i lift the plastic slam it onto the thing i want to mold and turn on the vacuum sealer part and it causes the plastic to make the shape the main problem is the build i saw was using a electric skillet that plugs into the wall. I wanted to use heating coils since my build will be roughly the size of a folding table.
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Old 09-01-2015, 02:31 PM   #4
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Sounds kinda like you're talking about a DIY vacuum former, unless I misunderstand. My hackerspace has two commercial vacuum formers, about 24"x24" and maybe 24"x36". Both use something that seems to pretty much be an electric oven heating element. I don't know if you need that much heat, depends on your choice of plastic and its thickness.

Have you looked other DIY vacuum formers besides the one with the skillet?
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Old 09-01-2015, 02:41 PM   #5
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Old 09-01-2015, 02:43 PM   #6
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I did i saw this one and I liked it cause I was going to mod it to fold when not in use so that way our workspace is not cluttered with tools we don't use all the time. but i wanted it to fold out and be able to plug in when in use and be good to go on a large scale.
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Old 09-01-2015, 03:01 PM   #7
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I guess if I were building this, I'd probably grab some heating elements out of a space heater or something, find a way to safely mount them to a noncombustible reflector like a cookie sheet, baking dish, or custom-fabricated metal pan if you want to get fancy.

Feed them power through a variac to control the heat and limit the current. Just a few good sized space heater elements will trip a breaker if you feed them 120V from a standard 15 or 20A circuit without limiting the current somehow.

That's about the extent of my knowledge, I'm afraid. Be safe.

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