New Build - For Your Amusement - MK-2 build

[Karl]

For members amusement some details and images of my newly (today) commissioned MK-2 CNC machine.


Details:

• Primary use: hardwood v-carving and associated 2D cutting.
• Effective working area: 800 x 500mm
• Designed max velocity: 1,800mm/min (typical v-carving 600-800mm/min)
• Removable raised MDF base to accommodate deeper work objects.

Main components:

• 80mm aluminium extrusion gantry (KJN) on 40mm steel frame (local stockist)
• Electrics: 4 Nema 23 motors (X-axis x 2) with 542 drivers and two 42v PSU (Zapp)
• Rail: X- & Y-axis 20mm supported (Zapp); Z-axis 20mm unsupported
• Ballscrew and bearings: 1605 (ebay Linearmotionbearing and smpart)
• MACH3
• {Very large floor mounted E-stop switch (a 'piece of cake' to install)}

To do:

• Fit limit switches
• Install dust extraction - dust shoe design.
• Select and fit water-cooled spindle.
• Modify to MK-2.1 - create larger working area - transfer X-axis components to Y-axis and puchase additional extrusion, supported rail and ballscrew for X-axis. Hopefully a quick win.

*** A gold star awarded for identifying which forum member's design this machine was based on.


And next - steel frame already constructed for MK-3 machine - sized for working 8' x 4' board.

Don't be too harsh - it's a hobby.

Karl