Comments on: MakerBot CupCake Heated Extrusion Bed Part 1: McWire PCB Heater

By: Keith Neufeld

Keith Neufeld — Mon, 06 Sep 2010 13:43:58 +0000

Didier, I apologize; I understood your question when you asked it and then forgot by the time I answered.

I also don’t know what the thermistor on my hotplate is — Tom McGuire had provided and soldered it and I never found out. I need to know so I can determine the beta without submerging my whole plate in water — although I probably should have done that when I first received it. Meanwhile, I’m running without closed-loop feedback, which is less than ideal.

By: Keith Neufeld

Keith Neufeld — Sun, 05 Sep 2010 20:18:13 +0000

Didier, it’s the thermistor that came with the CupCake batch 1 kit. I’m not certain what that is, but it’s probably in the parts list on the MakerBot wiki?

By: Didier

Didier — Thu, 02 Sep 2010 22:53:34 +0000

Hi,

Can you tell which value, or model you are using for the SMT thermistor ?

Thanks.

By: Mark Fuller

Mark Fuller — Tue, 22 Jun 2010 16:25:48 +0000

Wow amazing! I am looking to build a heated bed like yours but for the mendel with the Gen 4 electronics. Any idea of how to build a good one for the mendel?

Thanks!
Mark Fuller

By: Keith Neufeld

Keith Neufeld — Thu, 11 Mar 2010 12:38:38 +0000

Darkith, the PCB files aren’t worth sharing yet. We’re going to move the connector outside the footprint of the aluminum plate on v2, which will be a significant improvement.

By: Darkith

Darkith — Thu, 11 Mar 2010 12:30:11 +0000

PCB files worth sharing?

By: Murray

Murray — Thu, 11 Mar 2010 01:47:50 +0000

Maybe you could also use vero board? It already has lots of parallel tracks – just link them at the ends. Of course would probably have to combine a couple on a substrate to get the right size.

By: Keith Neufeld

Keith Neufeld — Wed, 10 Mar 2010 14:02:54 +0000

Jay, if you’re referring to the two inner traces on the four-pad breakout for TBD connector, those go to the SMT thermistor in the middle of the PCB.

By: MakerBlock

MakerBlock — Wed, 10 Mar 2010 13:50:30 +0000

What are the two interior pathways for?

By: Bas Pijls

Bas Pijls — Tue, 09 Mar 2010 21:24:19 +0000

Very nice! I also made a heated platform from PCB material because it can withstand and distribute the heat but I wouldn’t have though to use the copper itself as a heating element. Your solution is much more elegant.
http://www.flickr.com/photos/28172221@N08/sets/72157623375295929/