No Z Chain cho Voron 2.4

This mod was designed to remove Z-chain by a Z umbilical. another umbilical toolhead is required for this mod. TH umbilical is used as guide for Z

This is still a draft, use it with care and feel free to contact me for any error or omission.

Is there any benefits with this mod ?

There is no longer a chain above the gantry, but the toolhead umbilical remains and can be a problem for some mounts. Changing or adding cable in the umbilical can be a pity.

Keep in mind you do it only for Style ! ^^

Bill of materials

Hardware

qty

Notes

cable sleeve MDPC-X Medium

~2-3m

www.cable-sleeving.com

cable sleeve MDPC-X small

~1-2m

www.cable-sleeving.com

heatshrink 16mm

~15cm

ratio 3:1 or better

heatshrink 8mm

~20cm

ratio 3:1 or better

PTFE tube OD4mm

8 x 16mm

6x3mm Neodym magnets

2

N52 is better but N35 should but fine

M3 T-Nut

1

M5 T-nut

1

M3 x 20 BHCS

4

SHCS should be OK

M3 x 16 SHCS

4

M3 x 10 SHCS

1

M5 x 10 BHCS

1

M3 Square nut

4

DIN562 - max thickness 1.7mm

Ziptie 3mm small

2

PUG

2

Shorter is better, diameter depends on your wire harness, You can use ziptie or screw version, it doesn't matter

Before the assembly

Prepare the wire harness. The overall length depends on your printer size. To determine cable and cable sleeve length, put the gantry at the max z position and refer the sketches below.

S-shape of the cable

Preparing wire harness

This is a example but you can add much more cable as long as total diameter does not exceed 8.5 mm

Once harness is ready choose Pug against central part diameter

Steppers cable length is about the same as in Z chain.

Printed parts

All parts should be printed with Voron specifications.

! Do not change STLs orientation !

Assembly

1. Install M3 square nuts in the following parts. Attach PUG_gantry_mount_front to the gantry and PUG_bottom_mount_base to the bottom extrusion
2. Present wire harness and PUGs. The PUG_gantry_mount is designed to let stepper be routed inside extrusion slot (see figure below)

1. Fix PUGs with PUG_gantry_mount_back and PUG_bottom_mount_top and M3x16 SHCS
2. Insert magnets in central part slots
3. Assemble parts around TH umbilical

Issues

TO BE COMPLETED BY USERS