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general-appendixes [2017/04/26 23:29]
arthur [Doubling stepper motor drivers.]
general-appendixes [2018/12/21 10:41]
arthur [External Stepper Drivers]
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-In this case, you will also need to change those pins to be open-drain. To change a pin from being normal to being open-drain, you add a <​kbd>​o</​kbd>​ to the pin's number. For example :+In this case, you will also need to change those pins to be open-drain. To change a pin from being normal to being open-drain, you add a <​kbd>​o</​kbd> ​LowerCase "​o" ​to the pin's number. For example :
  
 <​code>​ <​code>​
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 <​code>​ <​code>​
-alpha_step_pin ​       0.      # Pin for alpha stepper step signal +alpha_step_pin ​     2.      # Pin for alpha stepper step signal 
-alpha_dir_pin ​        ​0.5       # Pin for alpha stepper direction +alpha_dir_pin ​      ​0.5       # Pin for alpha stepper direction 
-alpha_en_pin ​         2.0!      # Pin for alpha enable pin+alpha_en_pin ​       0.4!      # Pin for alpha enable pin
 </​code>​ </​code>​
  
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 </​callout>​ </​callout>​
 +
 +==== Multiple drivers in parralel
 +
 +If one of your axes requires more than one motor and driver, you can wire the control signals for one axis to multiple drivers, like so : 
 +
 +
 +<​html>​
 +<div class='​panel panel-default wrap_center'​ style='​width:​640px;​padding:​10px '>
 +<div class='​panel-heading'><​h4 class='​panel-title'>​External drivers wired in parralel</​h4></​div>​
 +<a href="​http://​smoothieware.org/​_detail/​unnamed.png?​id=general-appendixes"​ class="​media"​ title="​unnamed.png"><​img src="​http://​smoothieware.org/​_media/​unnamed.png?​w=800&​amp;​tok=f1375f"​ class="​media img-responsive"​ alt=""​ width="​620"></​a>​
 +<br/>
 +</​div>​
 +</​html>​
 +
 +
 +
  
 ===  Solid State Relays ===  Solid State Relays