Comments on: How to connect the 2nd thermistor?

By: Zaggo

Zaggo — Sun, 21 Mar 2010 22:45:47 +0000

renerage, the silk screen on the board contains an error. The pins marked as “+” are really “A6″ resp. “A7″, the pins marked as “-” are “VCC” and the pins marked as “A6″/”A7″ are connected to GND. That’s why I drew the diagram with the red markers above :)
I guess it’d be a good idea to clarify this above…

By: renerage

renerage — Sun, 21 Mar 2010 21:33:21 +0000

Zaggo, are the GND and A6 pin labels switched in the extruder board diagram above? I think I see a different pinout described in the RepRap wiki.

By: MathiasLichy

MathiasLichy — Wed, 10 Feb 2010 06:38:29 +0000

Ok, thx very much!!!!

By: Zaggo

Zaggo — Wed, 10 Feb 2010 04:32:11 +0000

You want to select the “Cupcake CNC w/ heated platform” driver from ReplicatorG’s “Machine”>”Driver” menu.

By: MathiasLichy

MathiasLichy — Tue, 09 Feb 2010 22:52:07 +0000

But in RepG12, in the controller screen, there isn’t a field for the temp of the platform.

By: Zaggo

Zaggo — Tue, 09 Feb 2010 22:47:47 +0000

As far as I know, the patch isn’t necessary anymore in RepG12/FW1.8. It should be part of the official release.

By: MathiasLichy

MathiasLichy — Tue, 09 Feb 2010 22:26:03 +0000

Ahhhh ok. Thx for the first!
One other question: Is the patch for the firmware and RepG10 possible for RepG12, extruder firmware 1.8?

By: Zaggo

Zaggo — Tue, 09 Feb 2010 22:17:31 +0000

When heating at full power, there are about 2A current on these lines. Since the wires I use are quite thin, I connected two of them in parallel for each line on A+/A-. Not sure if this is necessary, but I wanted to avoid melted insulations on that cable…

By: MathiasLichy

MathiasLichy — Tue, 09 Feb 2010 21:48:08 +0000

Hey,
please help me short. I want to build the heated platform like you.
Ok, but I have the following problem: You get two wires form the heated platform, don’t you? And two extra wires for the thermistor, as seen too. But why you are writing about four wires for the heated platform on A-A+?
thx