TWEAKIE my CNC machine under construction.

CNC is only limited by our imagination.

Construction 4.

(19) X axis stepper, flexible coupling and thrust bearing.

 

(20) The wiring has started (I am quite looking forward to this bit).

 

(21) Steel housing (control box) fitted to the rear of the frame, this is for all the control electronics and power supply.

 

(22) All wiring is screened to minimize noise pickup and prevent false pulse detection. There is also a common earth point within the control box.

 

(23) Without energy chain a reasonable solution to routing cables from the moving X and Z axis to the stationary frame.

 

(24) Cable routing from a different direction .

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I have now fitted some IGUS energy chain. I think the previous system worked just fine but this is perhaps a more elegant solution.

 

The power feed to the spindle motor finds its own way.

 

The spindle is manually switched on/off. When its on there is inherent danger, when its off and unplugged, it is safe. Although using a pump circuit to prevent software glitches unexpectedly turning a spindle motor on, computer control of such a powerful motor does represent an avoidable risk.