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bigcnc [2018/12/16 14:08]
sdh7
bigcnc [2019/01/17 12:22]
sdh7
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 The intention is to build much bigger CNC router than we currently have. The intention is to build much bigger CNC router than we currently have.
  
-Effective table area of approximately ​48"x48" (probably a little less due to spindle width, etc.), Z-axis travel of about 5-6"?+Effective table area of approximately ​40" ​x 40" (probably a little less due to spindle width, etc.), Z-axis travel of about 4-5"?
  
 Current Status: Some parts have been built, courtesy of Steve Gray. Parts should arrive at the space at the end of December 2018. Assembly to occur beginning in early 2019. Current Status: Some parts have been built, courtesy of Steve Gray. Parts should arrive at the space at the end of December 2018. Assembly to occur beginning in early 2019.
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 X-axis: 1/2" supported rails with cast blocks. Leadscrew motion. X-axis: 1/2" supported rails with cast blocks. Leadscrew motion.
  
-Y-axis: ​ 1/2" supported rails with cast blocks. Leadscrew motion.+Y-axis: ​ 1/2" supported rails with cast blocks. ​Twin Leadscrew motion.
  
 Z-axis: 1/2" supported rails with cast blocks. Leadscrew motion. Z-axis: 1/2" supported rails with cast blocks. Leadscrew motion.
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 Electronics:​ Electronics:​
   * Motors: NEMA 23   * Motors: NEMA 23
-  * Motor Drivers: TB6600 Gecko lookalikes ​(ordered) +  * Motor Drivers: TB6600 Gecko lookalikes  
-  * CNC electronics (grbl, BBB, etc.) - Current preferred mechanism is BeagleBone Black with Machinekit. A board for the BBB that splits out its pins to a pair of DB25 parallel ports has been ordered.+  * CNC electronics (grbl, BBB, etc.) - Current preferred mechanism is BeagleBone Black with Machinekit. A board for the BBB that splits out its pins to a pair of DB25 parallel ports has been purchased.
  
 +Project plan
 +  * X axis
 +    * what else needs to be done?
 +    * Turn down end of leadscrew
 +  * Y axis
 +    * Cut down rails to length if necessary?
 +    * attach rails to base
 +    * tap delrin nuts 
 +    * cut leadscrews to length?
 +    * turn down leadscrews
 +  * Z axis
 +    * <​del>​attach spindle mounts</​del>​
 +    * attach to X axis
 +  * Table
 +    * figure out design
 +      * Torsion box
 +      * leveling casters?
 +    * Build the thing
 +  * Electronics
 +    * Wire up everything
 +    * Procure motors if needed?
 +  * Misc
 +    * Dust collection setup?
 +    * Vacuum hold-downs? (optional)
 +    * <​del>​Clean up cast parts</​del>​
  
  
bigcnc.txt · Last modified: 2019/01/17 12:26 by sdh7