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Thread: Dual Bed Heaters?
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10-17-2024, 05:53 AM #1
- Join Date
- Oct 2024
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- 1
Dual Bed Heaters?
I'm in the process of building a large 3d printer.For the bed, I found a piece of 1/4" thick 12" x 24" aluminum which I think will work nicely.The only problem is there's no heaters anywhere close to those dimensions.(Not that I can find anyway)I was thinking of just getting 2 10-12" x 10-12" ones, but I'm not sure on the best way to make use of them.I'm guessing that as long as my power supply can handle it, I can just tie both heaters together for power.But with the thermistors, I'm not sure if tying them together would work.I'm leaning towards just leaving 1 disconnected and assuming when 1 needs to heat up, the other will need it too, but I'd like to get opinions.Or maybe just getting 1 to place in the center and hope for the best?Has anyone done anything like this before?Any thoughts?Thanks
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01-04-2025, 02:46 PM #2
- Join Date
- Jan 2020
- Location
- Bel Air Md
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- 182
if its 12 x 12 check ENDEREXTENDERS THATS WHERE I GOT MY 120v 750 watt 12 x 12 heater and insulator
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01-06-2025, 01:19 AM #3
- Join Date
- Aug 2024
- Posts
- 24
If you have to go with two or more heaters, I believe the better alternative would be to get a controller with multiple outputs to control each zone independently and then connect a single thermocouple to a neutral location on the build plate to read the temp and satisfy the printer controller's setpoint. This will ensure that one heater doesn't heat too much or not enough creating uneven heating. These controllers are not expensive and they have everything built in. Something like this.DTB4848VR Delta Electronics/Industrial Automation | Industrial Automation and Controls | DigiKeyControllers like this usually just need power and can be wired into a power supply or even directly wired with a plug to household voltage.
Last edited by VidJunky; 01-06-2025 at 01:32 AM.
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