Heated Bed

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Re: Heated Bed

Postby bdring » Thu Apr 04, 2013 1:03 pm

I think I am running 16awg. 14awg would be better but it is too big and stiff. If you are running 18awg, you are losing a lot of the power in the wire and dropping your voltage. If you have any adjustment in the power supply try boosting the voltage to where it is 12V - 12.5 at the bed. I can easily get to 100C on my Helios.
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Re: Heated Bed

Postby mattrsch » Thu Apr 04, 2013 3:21 pm

If you want some highly flexible 14+ gauge wire look for silicone wire on ebay or at a hobby shop. It has a very high strand count and 12 gauge will bend to a 6mm radius pretty much under it's own weight. The silicone sheath is i plus since it will have no problem with 100C temperatures
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Re: Heated Bed

Postby bloomingtonmike » Fri Apr 05, 2013 12:56 am

Why not use 14ga speaker wire or 2 conductor drop cord wire? Really will not be around much heat with the helios bed connection at the rear. I'll check out that silicone wire too.
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Re: Heated Bed

Postby cvoinescu » Fri Apr 05, 2013 1:08 am

I'd say flexibility is the main selling point of the silicone insulated wire in this case.
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Re: Heated Bed

Postby AVRC » Fri Apr 05, 2013 4:54 am

+1 on the hobby shop wire.

Look for Dean's "Wet Noodle". It is very flexible and the silicone insulation doesn't even deform at 400C soldering temps.
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Re: Heated Bed

Postby rocketwiz » Wed Apr 10, 2013 1:18 pm

I just used mains rate cable - good for 10A at (our) 240V, more than enough for the 6 - 10A that the bed will draw. I actually prefer the stiffer cable as I don't use the spring approach for a cable loom (just expandable nylon wraps) as the Mcmaster sizes/lengths aren't available locally at reasonable prices.
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