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Message from discussion v2 Stepper Driver Enabled Firmware
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Rob Giseburt  
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 More options Nov 4 2010, 12:36 pm
From: Rob Giseburt <giseb...@gmail.com>
Date: Thu, 4 Nov 2010 11:36:14 -0500
Local: Thurs, Nov 4 2010 12:36 pm
Subject: Re: [MakerGear] v2 Stepper Driver Enabled Firmware
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> Thank you very much for that! I rebased and squashed it into a single commit: https://github.com/koenkooi/G3Firmware/commits/feature-externalstepper

My pleasure. Thanks for squashing that. I should have done that before pushing. I’ll try to remember to do that in the future.

> If I didn't mess up, this is how to wire it up: http://www.flickr.com/photos/koenkooi/5144834329/

 It looks like maybe you have the red & grey flipped.

I haven’t mentioned this yet, but it doesn’t interfere with the servo on D9 and the H-Bridges are still available for use as well. This way if you want to use a servo for something, you still can. I believe the Unicorn should still work with this firmware, even compiled for external stepper functionality.

I also fixed a few bug that I found. For one, you couldn’t set the position of servo 2. (You could try, but it would move servo 1 anyway.) Also, the Packet::read32 function was terribly broken, and it’s shared between the motherboard and the extruder, so that could help other things as well.

I also cleaned up for support of the EEPROM map functionality.

I need to change the internal stepper mode to use the RPM setting instead of the PWM setting, then work on MakerBot 5D support can begin. :)

-Rob


 
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