Sovol SV08 Max — Orbiter 2.5 Extruder Mount

Description — paste into Printables

Sovol SV08 Max — Orbiter 2.5 Mount + Shroud

Replaces the stock planetary extruder with an LDO Orbiter 2.5. Everything else is stock: hotend, heatsink fan, CAN toolhead board, eddy probe, part-cooling fan. The shroud is a remix of the Nadir @ CN3D shroud, deepened to clear the Orbiter.

Printed parts

• Main plate — mounts to the X carriage

• Shelf — holds the Orbiter and the hotend

• Board backplate — holds the stock toolhead board

• Shroud — toolhead cover, magnet-mounted

Fan caps and clips — print from the original Nadir model.

Material: PA-CF or similar (stiff and heat-resistant). PLA and PETG are not suitable.

Hardware

• LDO Orbiter 2.5 (LDO-36STH20-1004AHG motor)

• 4× magnet Ø4×3 mm

• ~8× heat-set insert M3 × 4 × Ø4.2

• 2× heat-set insert M2.5 × 3 × Ø3.5

• 2× M2.5 countersunk screw

• 1× JST MX1.25 4-pin connector

• stock screws for the carriage, heatsink, belts and board

Wiring

The toolhead board has a JST MX1.25 4-pin motor socket, the LDO motor comes with XH2.54. Crimp an MX1.25 plug onto the LDO cable:

• pin 1 — red

• pin 2 — green

• pin 3 — yellow

• pin 4 — blue

LDO colours vary between batches: each coil (red+green, yellow+blue) must sit on pins 1–2 and 3–4. Motor buzzes — swap pins 2 and 3. Extrudes backwards — invert dir_pin.

Klipper

• [extruder]

• rotation_distance: 4.637

• [tmc2209 extruder]

• run_current: 0.85 # Orbiter max, do not go higher

• sense_resistor: 0.150 # keep stock value

• stealthchop_threshold: 0

• interpolate: False

• driver_TBL: 0

• driver_TOFF: 4

• driver_HEND: 6

• driver_HSTRT: 7

After the swap, recalibrate everything: rotation distance, pressure advance, flow, max volumetric speed, input shaper.

Credits

• Orbiter — dr. Lorincz Robert, orbiterprojects.com (CC BY-NC-SA)

• Shroud — Nadir @ CN3D (GPL-3.0)

• Reference geometry — Sovol SV08 Max STEP files