CNC Router - Homebrew

Original machine was custom built by Ron Bean and Tom Gondek at Milwaukee Makerspace. Since it has arrived at The Bodgery it has been rebuilt and modified primarily by Alex Kovell, Tony Roman, and Chris Kaufmann.

This is a red tag tool. You MUST BE TRAINED before using it.

Contact Alex Kovell or Tony Roman to set up an appointment for your training.

• $5/hr runtime

• G-code is sent to the board via browser based Chilipeppr.
• Serial Port JSON Server is required to send the G-code.

• 24“ x 32.5”

• Dewalt DWP611 Compact Router
  • Amps 7.0Amps
  • Horsepower 1-1/4HP
  • No Load Speed 16,000-27,000rpm
  • Collet Diameter 1/4“
  • Spindle Lock 12 position

• Oriental Motor Co. VEXTA C6244-9212K stepper motors (X,Y axes)
  • 5.7V, 1.6A, 1.8 degrees/step, current limited - running 24v
  • One of original X,Y motors burned out, they have been replaced with:
• X,Y-axis NEMA23 425oz/in 2.8A Stepper Motor ¼” Dual shaft (KL23H286-20-8B) wired in series
  • NEMA23 Wiring diagram
• Z-axis ALM 90130-25-SPA stepper motor
  • 5.7V, 1.6A, 1.8 degrees/step, current limited - running 24v

• Microtel SP-150-24IER power supplies
  • 150 watt, 115vAC/1ph/60Hz 2.5 amp input, 24VDC 6.3 amp output.

• TinyG v8
  • TinyG board diagram

• 1/4 to 1/8 step down collet.
• We have a few 1/8” cutting head, 1/8“ shank, chipbreaker bits.
• Please provide your own bits if you wish to do anything precise.

• Homebrew CNC Operating Instructions
• Gcode generation from Easel

day/month/year
17/04/2016 Started a timeline
2015 Acquired Homebrew CNC from Milwaukee Makerspace
2015 Purchased TinyG v8 controller board
20/02/2016 CNC router operational.
25/03/2016 X axis stepper motor overheating.
17/04/2016 Purchased 3 NEMA23 425oz/in 2.8A Stepper Motor ¼” Dual shaft (KL23H286-20-8B) TY James Pittman!
17/04/2016 Replaced X,Y steppers with NEMA23 425oz/in 2.8A Stepper Motor ¼” Dual shaft (KL23H286-20-8B)
23/04/2016 Switched X,Y steppers from parallel to series. Power draw was too high in parallel.