MakerBot BotStep17 REVE
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The BotStep17 plugs into the MightyBoard to control the stepper motors on your MakerBot Replicator.
Designed by Harry Mulliken.
This is part of The MakerBot Replicator, which you can find at http://www.thingiverse.com/thing:18813
Controller Chip Allegro A4928
Max. Motor Voltage VBB 28V
Max. Logic Voltage VDD 5.5V
Max. Power Dissipation (no heatsink) 2.0 W
Default Vref voltage VDD x 0.267 +- 2%
Default Motor current Vref/2.16 +-10%
Rosc GND (mixed decay mode)
|MS1||MS2||Microstep Resolution Excitation Mode|
|L||L||Full Step 2 Phase|
|H||L||Half Step 1-2 Phase|
|L||H||Quarter Step W1-2 Phase|
|H||H||Sixteenth Step 4W1-2 Phase|
Table 1. Microstep Resolution Truth Table
- Fixed by internal resistors 33K to VDD, 12K to GND, May be changed on pin VR
** Imax = Vref/(8x0.27)
*** Fixed by internal 0 ohm res.
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MakerBot BotStep17 REVE by MakerBot is licensed under the Creative Commons - Attribution - Share Alike license.
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- You must attribute (give credit) to the creator of this Thing.
- You must distribute Remixes under the same license as the original.
- Remixing or Changing this Thing is allowed.
- Commercial use is allowed.
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