CNCCMV2: Difference between revisions

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=Structure=
=Overview=


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*The CNC Circuit Mill Version 2 is designed for '''superior ease of sourcing, fabrication, assembly, and disassembly''', combined with '''high performance, scalability, modularity, and lifetime design'''- all at '''low cost'''.


=Cube Shaped, Structural Steel Angle Frame=
=Key Specifications=


*Ease of maintenance; frame can lie on any of its 6 faces for multiple access points.
*Stock Steel Cube-Shaped External Structure


*Rigidity; 8 corner junctions.
*Stock Aluminum Angle-based Internal Structure


*Scalable
*Step Motor Axis Drive


*Stackable; facilitates storage and transportation
*Rotary-to-Linear Motion Converting Stainless Steel Leadscrew and Wear-compensating Leadscrew Nut


*Full Planar Containment; inner components protected by cubeframe from any planar impact
*Anti-friction Bronze Sleeve Bearings


*Ease of Disassembly; 3 fasteners per corner junction; each edge angle of cubeframe independently open for disassembly
*Precision Stainless Steel Axis-Supporting Shafts


*Interchangeability of angles throughout cubeframe
*Brushed DC Motor Spindle Drive


*Ease of sourcing/availability
*Precision Stainless Steel Spindle Shaft


=Bronze Sleeve Bearing With Flange=
*Computer to Microcontroller to Stepper Driver Electronics Pathway


*Bronze for low friction
*Gcode Streamer to Gcode Interpreter Software Pathway
 
*Flange so that the bearing needs be secured only from one side
 
*Flange so that the bearing is self-aligning during mounting process (flange automatically becomes parallel to mount surface)
 
*Mounted with bolts and nuts external of flange for easy interchangeability of bearings through machine and for other applications (because no mount holes are drilled on the bearing itself)
 
=All Screw or Bolt+Nut Fastening=
 
*Superior ease of disassembly
 
=All Stock Metal Frame=
 
*Superior ease of sourcing
 
=Aluminum Axis Angles (2 support and 2 moving per axis)=
 
*Lightweight yet rigid
 
*2 support for holding stability on both ends of axis
 
*2 moving for stability along plane perpendicular to moving angle
 
=Aluminum Set-Screw Couplings=
 
*Ease of Fabrication
 
*Ease of Disassembly
 
*Lightweight
 
=Ball Bearing (2 for spindle)=
 
*Handles high rpm
 
*Flange so that the bearing needs be secured only from one side
 
*Flange so that the bearing is self-aligning during mounting process (flange automatically becomes parallel to mount surface)
 
*Mounted with bolts and nuts external of flange for easy interchangeability of bearings through machine and for other applications (because no mount holes are drilled on the bearing itself)
 
*2 for stability along all planes
 
=Stainless Steel Leadscrew=
 
*Excellent corrosion resistance
 
=Wear-compensating Leadscrew Nut=
 
*Long lifetime
 
=Precision Stainless Steel Support Shafts, 2 per axis=
 
*Excellent corrosion resistance
 
*Stability along plane perpendicular to axis


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=Electronics=
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=Software=
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=Gcode to Gctrl to GRBL=
*USB port; ease of compatibility
*Arduino microcontroller used; ease of sourcing

Revision as of 21:02, 14 February 2012

Specifications and Design Rationale

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Overview

  • The CNC Circuit Mill Version 2 is designed for superior ease of sourcing, fabrication, assembly, and disassembly, combined with high performance, scalability, modularity, and lifetime design- all at low cost.

Key Specifications

  • Stock Steel Cube-Shaped External Structure
  • Stock Aluminum Angle-based Internal Structure
  • Step Motor Axis Drive
  • Rotary-to-Linear Motion Converting Stainless Steel Leadscrew and Wear-compensating Leadscrew Nut
  • Anti-friction Bronze Sleeve Bearings
  • Precision Stainless Steel Axis-Supporting Shafts
  • Brushed DC Motor Spindle Drive
  • Precision Stainless Steel Spindle Shaft
  • Computer to Microcontroller to Stepper Driver Electronics Pathway
  • Gcode Streamer to Gcode Interpreter Software Pathway

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