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Tuesday, June 24, 2014

CNC Stepper Mounts

Tonight I spent some time installing the BDtools conversion mounts to each axis.  I placed an order for oldham style couplers from McMastercar earlier this morning. I needed 2 - 3/8" shaft connectors for the Nema 23 motors and 1 - 1/2" connector for the z-axis Nema 34. The part number at McMaster is 59985K3. I chose the acetal disc versus the nylon option for additional rotational stiffness. Hopefully this will pay off with reduced backlash numbers.

Below is a photo of the mill waiting patiently for it's steppers.


Grizzly's lawyers will hate me, but this shield had to go.  It wasn't much of a mystery to disable this "safety feature". Remove the shield and jump the blue and brown wires. Bingo.



I'm contemplating removing the quill for additional z-axis rigidity.  With full mobility in the z-axis by stepper control, I do not see a need for the quill anymore.

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