Metal Mill

The metal mill is a Precision Matthews PM25-MV mill with a CNC conversion kit from Arizona Video and a Centroid Acorn controller.

PM25-MV Mill Features:

• 1 HP DC Brushless Motor and Belt Drive – very quiet
• Max. Drilling Capacity 1″
• Max. End Milling Capacity 3/4″
• Max. Face Milling Capacity 2/1/2″
• Table Size 27-1/2″ x 7-1/8″
• Cross Travel (Y Axis) 7″
• Longitudinal Travel (X Axis) 19″
• Table Leadscrew Pitch 10 TPI (.100″ Per Turn)
• Table Dial Graduations .001″
• Vertical Travel (Z Axis) 13″
• Max Distance Spindle to Table 13″
• Taper of Spindle R-8, w/7/16-20 Drawbar Thread
• Spindle Travel 2″
• T Slot Size Actual size 12mm, our 1/2″ kit listed is sized for this machine
• Range of Spindle Speeds 50-2500rpm, 2 Steps

Centroid Acorn Controller Features:

• Up to 4 axis Step and Direction, Open Loop
• 8 inputs and 8 Outputs
• One Encoder input
• 1 analog output (0-10 vdc for VFD control)
• On board Motion Control CPU
• Ethernet communication to CNCPC

The process for creating a part using the mill is:

• Design/create the part using a CAD program like OnShape, SolidWorks, FreeCAD, or Fusion360.
• Generate instructions to tell the mill how to move to create the part. These instructions are called G-code because many of the instructions start with the letter ‘G’.
• Load the G-code onto the PC by the mill
• Install the cutting tool into the mill. This must be the same one you specified when you created the G-code.
• Turn on the mill using the power strip next to it labelled “Mill”
• Start the CNC12 mill program on the PC
• Clear the reset button in CNC12 by clicking it
• Move the mill to the starting location on the part
• Click the “Home” button in CNC12
• Load the G-code file into CNC12
• Start the spindle and set the RPM
• Click “Cycle Start” to have CNC12 execute your G-code.

Fox.Build keeps the following endmills in stock for your use:

• Flat center cutting 2 Flute endmills:
  • 1/8, 3/16, 1/4, 3/8, 1/2, 5/8, 3/4 inch diameter
  • 2mm diameter
• Flat center cutting 4 flute endmills:
  • 1/8, 3/16, 1/4, 3/8, 1/2, 5/8, 3/4 inch diameter
• Ball endmills, 2 flute:
  •  1/8 inch
• V-cut endmills:
  • 20 degrees
  • 60 degrees

If you need a cutter not listed you may supply your own or ask us about it. Depending on the particular cutter we may be able to supply it for you.