SV08 Gantry v2 – Precision & Easy Tensioning

🧰 Overview

SV08 Gantry v2 brings a cleaner, more precise CoreXY experience:

Front-access belt tensioning for the AB motors (Voron-style)

Aligned pulleys at the XY joints for parallel belt paths

Easier setup & maintenance with more travel for fine alignment

Optional double-shear support version for extra rigidity

This is the new gantry repo. The previous “SV08 3D-Printed Gantry” stays online so existing users can reprint replacement parts if they don’t want to switch.

✅ What’s New (v2)

AB motor tensioners accessible from the front of the printer

Redesigned XY joints to align pulleys with the front idlers

Improved belt path parallelism → better tracking & accuracy

More tensioning travel → faster, repeatable alignment

📦 Files Included

Printable parts for the SV08 Gantry v2 (CoreXY)

XY joint set, front idlers, AB motor mounts, covers

(Optional) Double-shear variant parts (when released, will be added here)

🛒 Hardware (BOM) – Core items

- Heat-set inserts: M3, M4, M5 🔩 Screws

- M3×8 SHCS → 16 pcs - M3×10 SHCS → 8 pcs - M3×25 SHCS → 8 pcs - M3×30 SHCS → 4 pcs - M3×40 SHCS → 2 pcs - M4×30 SHCS → 16 pcs - M5×10 BHCS → 4 pcs - M5×14 SHCS → 1 pc - M5×25 SHCS → 7 pcs - M5×35 SHCS → 2 pcs Heat-set inserts

- M3 (Ø4.5 mm, L 4–5 mm) → 29 pcs - M4 × 5 mm → 16 pcs - M5 × 4 mm → 14 pcs Nuts / Spacers

- M3 nut — 2 pcs - M5 × 1 mm spacer — 2 pcs Bearings and Pulleys

- Idler pulleys USE Reuse stock! or this is a good candidate - REPLACEMNET PULLEYS DIRECT FIT BETTER QUALLITY GT2 Idler Pulley (20T, 9-9.3 total width)5mm bore 2

GT2 Idler Pulley (20T, 9-9.3 total width)5mm bore 12

GT2 Motor Pulley 20T, 5mm bore 2

- 4x GE5C bearing + M5 washer (for Z holder integration) Belts

- 4Meters of GT2 6mm Belts - Existing SV08 belts & pulleys can be reused Tip: Don’t overtighten pulley screws—keep them snug and spinning freely.

🧭 Assembly

- See the manual! go to the Download section and scroll down! - 📄 Assembly Guide (PDF): go to the download and download the PDF! 🖨 Print Settings (Recommended)

- Material: ABS Polymaker Aff Link - Perimeters: 4–5 - Infill: 20 –30% (Gyroid/Cubic) - Layer height: 0.2 mm - Walls & holes tolerance: enable horizontal expansion if needed Heat-set inserts : install with a soldering iron & alignment jig if available

🔧 Compatibility

- Printer: Sovol SV08 📝 Print Note – AB Motor Lower Part

⚠ Many users of the previous version had problems here due to incorrect supports.

Do NOT use “Tree Supports” unless you leave a big gap — with just 1–2 layers of support, they don’t work well for this part.

Instead, use Grid Supports (auto-generated) as shown in the preview example.

No extra custom settings are needed — just let the slicer generate grid supports.

✅ This ensures proper bridging around the motor mount holes and avoids weak or messy overhangs.

If you use the physical endstop download the proper part for the A motor ( the one on Right) and the endstop holder

If you use the OG Toolhead! you will need this print https://www.printables.com/model/1143921-fix-sovol-sv08-hot-end-belt-clip

in order to have the belt parallel to the X beam other wise you will have it like the green line in the picture below! Thanks @WaldecirSant_1983916 for all the feedback!

💬 Want to Help Improve It?