Comments on: MakerBot Hotness Lives at Hive76

By: John Abella | MakerBot Heated Build Platform

John Abella | MakerBot Heated Build Platform — Sat, 17 Nov 2012 04:27:53 +0000

[...] with heating via nichrome wire, this became the common route. Two of the first setups were by Jordan Miller and Eberhard Rensch. Jordan Millers design became the “MakerBot Hotness [...]

By: jmil

jmil — Wed, 17 Feb 2010 21:20:49 +0000

Hi Dan,

see discussion here:
http://groups.google.com/group/makerbot/browse_thread/thread/e7938fc9d4710a8d

there are a couple options, here is my recommendation:
This is the exact commit of the source code I used in testing… try building and uploading the ArduinoSlaveExtruder.pde firmware manually with the Arduino IDE. You will have to rename Configuration.h.dist to Configuration.h and may have to clean up a few other errors that come up during compile/upload to board:
http://github.com/makerbot/G3Firmware/zipball/HeatedBuildPlatformFirm…
jordan

By: dan

dan — Wed, 17 Feb 2010 20:53:51 +0000

Help! I installed the heated platform kit from Makerbot but am not able to get either a temp reading or a response from the MSOFET. I updated the motherboard firmware to 1.6 and the extruder board to 1.8, using the Windows version of ReplicatorG, so I am able to select the heated build platform driver and do see the control panel entries for the build platform temps.

The temp reads at 112, regardless of whether the thermistor is plugged
in or not. I checked the polarity of the pins (since there is an
electrolytic cap) and they are correct. I checked the resistance of
the thermistor and (once the cap settles) it is 100K. Furthermore, I am able to heat the platform using the C MOSFETs and the fan control. When I do that, the thermistor resistance drops appropriately.

The pins on the board seem fine too, as the top pin shows ground, the middle pin has Vcc and there is about +0.5 V at A6 when it is otherwise open.

It seems that the problem is that the software is not monitoring A6,
since putting a resistor bridge of 100K between GND and A6 with the
4.7K resistor between Vcc and A6 produces no change in the control
panel reading of 112.

Suggestions?

By: FarMcKon

FarMcKon — Fri, 12 Feb 2010 14:13:18 +0000

Rock on! That is amazing!

By: dtoliaferro

dtoliaferro — Fri, 12 Feb 2010 13:08:14 +0000

Wow, go guys go!

By: Mike Hogan

Mike Hogan — Fri, 12 Feb 2010 07:18:19 +0000

Nice post, and thanks for the flowers.

I followed the link to Eberhard Rensch’s site and saw a post there about a Repman heated stage, so maybe the smart stage is a good idea for that platform (also for the Mendel, maybe). Putting the control logic for the heater in the firmware is clean in its way, but also limiting.

At any rate, it was fun — thanks for the opportunity.