Hệ Umbilical Voron Nitehawk SB: Mount Modular & Routing Spine System

The Spine System now has a companion: Z-Chain Mount for routing the second loop from gantry to deck.

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Complete System Overview

This project provides everything needed to mount and route the Nitehawk SB umbilical inside the enclosure.

Part 1: Toolhead Mounting (Choose One)

Door Mount (Legacy)

• Mounts to extruder door

• Left in project as some may find it suitable

• Could work for exhaust exit routing (not tested by me)

• Works with most pre-crimped umbilicals (LDO, Siboor)

Motor Plate Mount (Current)

• Bolts to NEMA14 motor plate

• Keeps door free and light

• More rigid mounting

• Required for Spine System + Z-Chain Mount

• My tested configuration

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Part 2: In-Enclosure Routing (Spine System)

How It Works: The Spine System uses two rigid filament strands (PC/ABS) to create a self-supporting cable loop from toolhead to gantry/exhaust.

Components:

• Gantry Spine Anchor (mounts to rear gantry or exhaust)

• Spine Link Clips

• TPU strain relief sleeves (front and rear)

• Rigid 1.75mm filament strands (~2m)

Benefits:

• No cable chains needed for first loop

• Prevents cable twist during motion

• Clean, minimal solution

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Part 3: Z-Chain Mount System (NEW)

What's This For? Routes the cable's second loop vertically from gantry down to deck, then through the deck center hole to electronics.

Why Add This? As a first-time Voron builder with an LDO 350mm kit, I wanted to route vertically to potentially maximize Z-height. The Z-Chain Mount works with the Spine System to complete the full routing path.

Components:

• Gantry Mount - attaches cable chain to rear gantry extrusion (upper anchor)

• Deck Mount - attaches chain to deck-level rear extrusion (lower anchor + cable attachment point)

• Chain Clips - snap onto cable chain links to keep umbilical parallel during Z movement

Requirements:

• Motor Plate Mount (toolhead)

• Spine System (first loop)

• Original Voron X/Y cable chain (repurposed for vertical use)

Cable Path:

1. Toolhead → Spine System → Gantry

2. Gantry → Z-Chain Mount → Deck

3. Deck center hole → Electronics

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File Organization

Folder: Door Mount (Legacy)

• nitehawk_sb_main_body_asa.stl

• cable_clamp_cap_asa.stl

• strain_relief_sleeve_split_tpu.stl

Folder: Motor Plate Mount

• sb_umbilical_mount_body_vertical.stl

• sb_umbilical_mount_body_10deg-back-tilt.stl

• sb_umbilical_mount_body_15deg-back-tilt.stl

• sb_umbilical_motor_mount_body_10deg-back-5deg-left.stl

• sb_umbilical_clamp_cover.stl

• umbilical_strain_relief_tpu.stl

Folder: Spine System

• gantry_spine_anchor_body.stl

• spine_link_clip.stl

• (Uses extra Clamp_Cover and Strain_Relief_TPU for rear anchor)

Folder: Z-Chain Mount System (NEW)

• Gantry_Mount.stl

• Deck_Mount.stl

• Chain_Clip.stl

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Printing & Hardware

Print Settings:

• Rigid parts: ABS/ASA, 4 perimeters, 40% infill

• TPU sleeves: TPU 95A, 100% infill

Hardware:

• M3x5x4 heat-set inserts (4x per mount)

• M3 SHCS screws (14-20mm)

• For Spine: ~2m of 1.75mm rigid filament (PC/ABS)

• For Z-Chain: Original Voron cable chain (may need extra links)

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Assembly

Basic Setup (Spine System):

1. Install Motor Plate Mount on toolhead

2. Install Spine Anchor at gantry

3. Insert rigid filament strands through TPU sleeves

4. Route umbilical along spine to anchor point

With Z-Chain Mount (Full System):

1. Install Motor Plate Mount on toolhead

2. Install Spine System (toolhead to gantry)

3. Install Gantry Mount on rear gantry extrusion

4. Install Deck Mount on rear extrusion at deck level

5. Attach cable chain between Gantry Mount and Deck Mount

6. Install Chain Clips along chain

7. Route cable from Spine Anchor → down chain → through deck center hole

8. Test full Z-axis range

Note: Door Mount could work for exhaust exit routing but has not been tested. The tested configuration uses Motor Plate Mount.

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Design Notes

• Modular design allows easy reconfiguration

• Z-Chain Mount designed for LDO 350mm kit (chain length may vary)

• Motor Plate Mount may require removing stiff heatshrink near Nitehawk connector

• All components designed for easy cable removal/service

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Credits

Z-Chain mounting concept inspired by Richard M's Voron CAN bus Z-chain:
https://www.printables.com/model/279739-voron-can-bus-z-chain-move

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Status

Z-Chain Mount System currently in testing on my LDO 350mm build. Feedback welcome.

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Change Log

• 01 Feb 2026: Added Z-Chain Mount System (Gantry Mount, Deck Mount, Chain Clips)

• 30 Jan 2026: Added Motor Plate Mount option

• 27 Jan 2026: Initial release (Door Mount + Spine System)