u/ChampyDubs

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I’m redesigning the X carriage on a QIDI X-Smart V1 (Replicator-style dual rod system) and want to adapt it to support a Mini Stealthburner (MiniSB) or possibly a full Stealthburner.

Current setup:

- Two horizontal Ø8 mm smooth rods

- ~60 mm center-to-center spacing

- LM8SUU bearings (LM8UU compatible)

- Stock carriage is a single plastic part that integrates the bearing housings and hotend mount

- Rods pass directly through the carriage (no front-mounted plate)

I’m planning to completely replace the stock carriage with a new design that:

- Keeps the dual-rod system (not converting to rails)

- Uses LM8UU or LM8LUU bearings

- Adds a rigid front mounting face for MiniSB or Stealthburner

- Supports a Phaetus Dragonfly BMS hotend

If anyone knows of similar rod-based carriage designs, or has thoughts on whether MiniSB is a much better target than full Stealthburner for this, I’d really appreciate the input.

I’m not trying to mount SB onto the existing carriage — the goal is to design a new carriage from scratch that works with this rod system but uses a more modern toolhead.

Photos of the current X carriage / motion setup are attached for reference.

Any advice or pointers would be appreciated.

u/ChampyDubs — 11 days ago