Beagleboard:BeBoPr Cape

Descriptions
The BeBoPr Cape provides all the necessary I/O to control a Mendel/Reprap 3D-printer.
 * 3 analog inputs optimized for thermistors.
 * 6 digital inputs for limit switches.
 * 3 high-power PWM outputs for heater(s) and/or fan.
 * 4 axis steppermotor interface (5 axis via future expansion board) for either external drivers, or on-board StepStick/Pololu modules.
 * Single 12 Volt supply operation. The integrated 5V/2A switching stepdown convertor powers the BeagleBone, cape and external Opto sensors.
 * All I/O is protected to prevent damage to the BeagleBone by accidental short-circuits.
 * Steppermotor operation at up to 24Volt.
 * LEDs mounted next to the input and output connectors provide status information.

All 'hard' realtime control, e.g. step pulse generation, acceleration etc. runs on a dedicated coprocessor that is part of the AM3359 on the BeagleBone. The 'soft' realtime control, e.g. traject planning, temperature control etc., runs on the ARM processor under Linux.


 * The stepper control code accelerates and steps all axes simultaneously at up to 62.5 kHz steprate.
 * The step-pulse duration on the E-axis can be controlled for laser engraving/cutter applications.

A license for the coprocessor code comes with the board. A port/rewrite of the RepRap/Teacup 3D printer control software is expected to be ready before end Q2/2012. All Linux code will be Open Source, the coprocessor code will be provided as a binary module.

Vendors
Coming soon.

Manufacturer's Link
For more information please visit BeBoPr's Github or contact [mailto:bebopr@aeselectronics.nl bebopr@aeselectronics.nl]

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