Heated Build Platform build

[jenschr 6]

Hi all,

Just finished writing up how I did my HBP build:

http://flashgamer.com/arduino/comments/adding-a-heated-build-platform-to-your-ultimaker

Feedback / suggestions / alternate ways to do this appreciated!

J

[thedudevt 0]

Thank you! I've been looking for more info on setting up a heated bed. I've got one in the works myself. Great idea using an automotive relay.

Kyle

[jenschr 6]

Just a quick update on my build - I now use a 360 watt industrial PSU from China and it works like a charm! I'm still using the automotive relay and the setup works perfectly for both PLA and ABS now. The bed heats to 120C in 5 minutes and I was able to fit it nicely beneath the Ultimaker by printing these feet that Bernard posted some time ago:

http://www.thingiverse.com/thing:12089

I'll post an update on the build as soon as I have the time required :-)

J

[destroyer2012 0]

does the relay still click like crazy? And nothing bad has happened yet eg getting worn out? I am using a solid state relay for mine...

[ian 32]

thanks a million for your efforts in putting this together.

I really need to build this sooner than later.

thank you.

Ian

[destroyer2012 0]

I'm still not clear why you don't use AC current in your HBP; seems more efficient since the bed is a resistor and they don't care about the frequency component of the current... Yes there is a "dangerous voltage" issue but surely it's not hard to make an enclosure for the relay/wiring? Just get one of those project boxes from radio shack, or print something. I use AC and a couple of solid state relays for my heated platform (using 120 ohms of aluminum clad resistors JB-welded on an aluminum plate) and it works great, plus it was super easy to make.