Thingomatic Heater Board v1.1

Overview

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Integrated heat, temperature sensting, and motor control

The Thingomatic Heater Board is mashup of innovative 3D printing techniques. The heater board fulfils a number of roles in the Thingomatic. First, it provides a nice, flat printing surface with mounting holes. Second, the PCB itself is one large, flat heater which provides very even heating across the surface. Third, the PCB includes an on-board thermistor which allows the board to measure its own temperature. Last, but not least, the PCB includes a header for connecting it to the rest of the MakerBot electronics so that you can easily wire it up.

Interfaces

Main Input

The input is a 6 pin, .156" pitch header with right-angle connectors for attaching the pre-made wiring harness. This connector provides power for the heater, and the automated build platform motor. It also has connections for the temperature sensor output.

Pinout

PIN NAME FUNCTION
1 GND This is the ground for the analog thermistor measuring circuit.
2 5V This is the 5V input voltage for the analog thermistor measuring circuit.
3 SIG This is the analog signal output of the thermistor measuring circuit.
4 +12V This pin is connected to the +12V terminal from the extruder controller MOSFET. This +12V is to power both the DC motor and PCB heater.
5 HEAT- This pin is connected to the - terminal of the extruder controller MOSFET. This pin will control when the heater is on or off.
6 MOT- This pin is connected to the - terminal of the extruder controller MOSFET. This pin will control when the automated build platform motor is on or off.
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DC Motor Output

The Thingomatic comes standard with an automated build platform, and that build platform requires a DC motor to operate. The DC motor comes with a 2 pin header that corresponds to the 2 pin header on the PCB.

PIN NAME FUNCTION
1 MOTOR- This pin is the negative terminal of the DC motor. This is directly connected to pin 6 of the interface connector which is in turn connected to the negative terminal of the DC motor MOSFET. This pin controls when the DC motor is on or off.
2 MOTOR+ This pin is the positive terminal of the DC motor. This is directly connected to pin 4 of the interface connector which is in turn connected to the +12V
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Schematic

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Partlist / BOM

Source

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The Thingomatic Heater Board v1.1 is Open Source Hardware and is licensed under the GNU GPLv3.

Download

History

The Thingomatic Heater Board v1.1 is a derivative of the Cupcake Heater Board v1.0 which was originally designed by Zach Hoeken of MakerBot Industries and Jordan Miller of Hive76.org.

Unless otherwise stated, the content of this page is licensed under GNU Free Documentation License.