CNCCMV2

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.

Performance

• X Axis Travel Range = 20cm

• Y Axis Travel Range = 20cm

• Z Axis Travel Range = 5cm

• Step Motor Torque at 12VDC = 3.2kg-cm

• Spindle Max Rotation Speed = 22600rpm no-load

• Spindle Motor Torque at 24VDC = 88.5g-cm at max efficiency

• Workpiece Holding Mechanism = Linear Bolt and Tensioning Nut

Design

• 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

• Versatile Fastener-based Holding Platform

• 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

Cost

• Stock Metal = under 150 USD

• Leadscrews and Leadscrew Nuts = under 250 USD

• Precision Shafts = under 150 USD

• Bearings = under 100 USD

• Fasteners = under 70 USD

• Electronics = under 300 USD

• Software = Open Source

Sourcing

• Spreadsheet File

LINK HERE

• Prototyping Spreadsheet

• To edit or download the spreadsheet, click on the following link.

https://docs.google.com/spreadsheet/ccc?key=0AlpsBarfpPkzdFk5aDY3dHM0eEhfZHNkWVppdV9EelE

Build Process

=Design Modifications

Usage

• Circuit Schematic to Gcode File Toolchain

• See following link for list of electronic design suites:

http://en.wikipedia.org/wiki/Comparison_of_EDA_software

• PCB-Gcode Optimizer

http://cnc.goodbits.net/wiki/index.php5/Pcb-gcode_optimizer

http://www.millpcbs.com/index.php?option=com_content&view=article&id=10&Itemid=44

GVCS Product Ecology

CNC Circuit Mill Product Ecology

Uses

• Laser Cutter - Structure
• Induction Furnace - Router, spindle
• Multimachine - spindles
• Electric Motor Generator - XYZ articulation
• Rod and Wire Mill - Wires
• Universal Power Supply - Power

Creates

• Circuit boards
• Universal Power Supply boards
• Controllers

See Product Ecologies for more information.