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I’d like to renew my CNC for PCB, I select a project called Cyclone PCB Factory to start.

But I think there are some issue on the mechanic, so I start to fix they, one of the more important fix is Z Axis for Cyclone to prevent movement when drill the PCB.

I use standard Cyclone system for connection, movement and bearing, but the structure is renewed.

Stepper is a standard Nema17 form factor. I design an holder for 50mm splindle and an holder for a dremel (big).

I advise to print gears with PETG.

3D model

Material

1x155mm Threaded rod

2x147mm Smoth rod

2x608ZZ bearing

2xM8 nut

2xM8 blocked nut

1xSpring

2xM8 Washer

4xLM8UU

12xM3 screw 12mm

8xM3 screw da 26mm

3xM3 screw without head

23xM3 nut

Linear bearing LM8UU

You can buy here

Bearing 608zz

You can buy here

Printing

X carriage printing process

Z carriage printing process

Z holder printing process

Assembling

Z Axis assembled photo

The Threaded rod have in sequence (from the bottom)

1 bearing B608ZZ already inserted in the structure

1 M8 blocked nut (Bleu)

1 M8 Nut

1 Spring (as other in cyclone PCB)

1 washer

1 M8 Nut

1 M8 blocked nut (Bleu)

1 bearing B608ZZ (inserted in the threaded rod)

Assembly instruction

First insert bottom bearing then in the threaded rod instert all other quite near.

Insert the threaded rod in the top (with the other bearing inserted in the rod to the top)

the insert the rod in the bottom bearing (with the blocked nut about 4 mm inserted)

Then insert the gear in the top and stop the top blocked nut with a pair of thin pliers then rotate the gears to permit the blocked nut to go near the top bearing.

Here a video with all step of assembly.

Result

Z Axis 775 Motor holder fom jeskata

Download

Original holder file