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Registered: 08/20/10
Posts: 14,539
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making your own 3d printer heat bed?
#21745834 - 05/31/15 06:56 PM (8 years, 7 months ago) |
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so as i've mentioned in other places here and there, i'm working to create a big 3d printer, something of a 2 foot2 printing surface space... someone else mentioned i would probably have to make my own (which i'd agree having spent time looking for a heat bed of that size)
i found some informationz- i will need 0.6w (or up to 1 w) per cm2 of printing space, which comes out to 60.962 which is 3716.1216 multiplied by 0.6 and we get... 2229.67296
(shit, so i am going to need to draw 2,230w JUST for the heat surface??? am i doing this right?) i havent been able to find any info on really big heat beds, only that i could maybe put like four of them or more under neath the heating surface? they typically come in 200w to 300w.. i would need them in like, 4-500w range i think
also, aluminum will be the best choice as it will distribute the heat evenly and is fairly cheap.
wat do? anyone ever experimented or know of a step by step guide to making one i am somehow missing?
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Registered: 08/20/10
Posts: 14,539
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Re: making your own 3d printer heat bed? [Re: 404]
#21745928 - 05/31/15 07:18 PM (8 years, 7 months ago) |
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man, i know something is not clicking here.
so there is this heating bed... http://www.ebay.com/itm/like/271818680015?lpid=82&chn=ps 30x30cm, and it's 600w, so i'd really only need 4 of these!
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psi
TOAST N' JAM


Registered: 09/05/99
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Re: making your own 3d printer heat bed? [Re: 404]
#21746250 - 05/31/15 08:43 PM (8 years, 7 months ago) |
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Sounds like a cool project. That's a lot of power, I guess you'd want to make sure you were using it on at least a 20 amp circuit.
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Registered: 08/20/10
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Re: making your own 3d printer heat bed? [Re: psi]
#21746276 - 05/31/15 08:48 PM (8 years, 7 months ago) |
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I might have to run it at my neighbor's hangar out a town over from where i'm at then if it comes to that. i was just thinking the normal 15 amps isn't going to really cut it.
if he doesn't have a proper circuit, is it difficult to make my own 20+ amp circuit and rig it from my own house some how?
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psi
TOAST N' JAM


Registered: 09/05/99
Posts: 31,456
Loc: 613
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Re: making your own 3d printer heat bed? [Re: 404] 1
#21746500 - 05/31/15 09:46 PM (8 years, 7 months ago) |
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My knowledge of electricity is really basic but 15 amps at 120 volts would be only 1800 W I believe, where 20 A would be 2400 (and 30 A, 3600 W). There probably are some 20 or 30 A circuits already if you check the breaker box, then it's a matter of figuring out where they go.
Personally I'm enough of a novice that I would not want to mess around with anything inside a breaker box unless I really was sure about what I was doing. You definitely want to know you're using the correct gauge of wire for the amperage that will go through it, too light of a gauge and it's a fire hazard.
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