Very large heated bed (400x400mm) I am currently building 3D printer with a work area of 400x400mm. Printer is designed by me and made using T-slot 5 profiles and ballscrews. The biggest challenge I have is heated bed. I want to have one like MK3 ALU-Heatbed Dual Power. Any one know where to buy/custom make so big bed? Regards, Martin https://reprap.org/forum/read.php?4,329805,329805#msg-329805 Fri, 13 Mar 2026 19:13:55 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,329805,331207#msg-331207 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,331207#msg-331207 MartinAM Reprappers Fri, 28 Mar 2014 06:21:28 -0400 https://reprap.org/forum/read.php?4,329805,330870#msg-330870 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,330870#msg-330870
20A at 24V isn't risk-free either.]]> DaveX Reprappers Thu, 27 Mar 2014 12:39:00 -0400 https://reprap.org/forum/read.php?4,329805,330795#msg-330795 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,330795#msg-330795 So it is better to get e silicone mat for 230V then 24V.

NewPerfection : Thx for schematics.]]> MartinAM Reprappers Thu, 27 Mar 2014 10:22:24 -0400 https://reprap.org/forum/read.php?4,329805,330604#msg-330604 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,330604#msg-330604
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MartinAM
I just have to figure out how to connect SSR to Rumba board and I am at home...

Easy:


]]> NewPerfection Reprappers Wed, 26 Mar 2014 23:25:23 -0400 https://reprap.org/forum/read.php?4,329805,330329#msg-330329 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,330329#msg-330329
It could work, but switching 4 amps worth of 120VAC might be better]]> DaveX Reprappers Wed, 26 Mar 2014 10:22:45 -0400 https://reprap.org/forum/read.php?4,329805,330241#msg-330241 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,330241#msg-330241 [www.aliexpress.com]

What do you think?]]> MartinAM Reprappers Wed, 26 Mar 2014 06:34:35 -0400 https://reprap.org/forum/read.php?4,329805,330188#msg-330188 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,330188#msg-330188
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NewPerfection
Easiest way is to use an AC-powered silicone or Kapton heater pad attached to an aluminum plate, controlled with an SSR.

Other options are listed here.

You saved my day! Thank you. This looks like a good idea.

I just have to figure out how to connect SSR to Rumba board and I am at home...]]> MartinAM Reprappers Wed, 26 Mar 2014 04:32:42 -0400 https://reprap.org/forum/read.php?4,329805,330085#msg-330085 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,330085#msg-330085 garyhlucas Reprappers Tue, 25 Mar 2014 18:26:28 -0400 https://reprap.org/forum/read.php?4,329805,329913#msg-329913 Re: Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,329913#msg-329913 silicone or Kapton heater pad attached to an aluminum plate, controlled with an SSR.

Other options are listed here.]]> NewPerfection Reprappers Tue, 25 Mar 2014 12:20:00 -0400 https://reprap.org/forum/read.php?4,329805,329805#msg-329805 Very large heated bed (400x400mm) https://reprap.org/forum/read.php?4,329805,329805#msg-329805
The biggest challenge I have is heated bed. I want to have one like MK3 ALU-Heatbed Dual Power.

Any one know where to buy/custom make so big bed?

Regards,
Martin]]> MartinAM Reprappers Tue, 25 Mar 2014 06:26:25 -0400