Improved Z Axis for Cyclone PCB Factory

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

Printing

Assembling

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

Download

• X Carriage
• Z Carriage
• Z Carriage Dremel Holder
• Z Carriage 50mm Splindle Holder
• Gear on Nema17
• Gear on threaded rod
• Gears cover