In this guide1 / 5
Use Build separator in the Parts Library below the filament controls or on the full Library page. New tools use the classic one-piece form. The active Nexlock fit supplies the initial connection-fit preset.
Choose Nexlock 4.80 mm, Corrected reference or extra-snug receivers. Fine fit & tile edge exposes independent stud/socket targets and allowances. The classic outline, two-stud head and single top axle stay fixed.
Choose your physical printer, rigid PLA/PETG and a compatible 0.2–0.4 mm nozzle, then use the separator print recipe. Open Export & downloads to choose a model file or Companion handoff, or save the tool through the ordinary part workflow.
The profile and outline are reconstructed from the 96874 reference, with a hollow underside, solid grip skin, transverse grip ridges, front levering toe and a single cross axle on top. It prints as one part and needs no screw or assembly.
This is a modified printable reconstruction: source surfaces are rebuilt as closed CSG, the lifting studs use a plate-friendly height and smooth cylinders, connection relief is adjustable, the tile tip is thickened for FDM and the wordmark is omitted. Printed performance is not certified as identical to an injection-molded LEGO separator.
Upstream reference: LDraw 96874 by Philippe Hurbain [Philo], original shape from LEGO Digital Designer, CC BY 4.0. The app, STL header, 3MF attribution and Print Package retain credit and source links. Original library source parts 96874/6007 keep their own authors, files, licenses and repair status.
| Feature | Classic design |
|---|---|
| Outline | 16 × 68 mm |
| Stud centers | 8 mm |
| Lifting stud height | 1.55 mm |
| Underside socket depth | 5.2 mm |
| Top axle envelope / reach | 4.7 / 7.6 mm |
| Default tile edge | 0.5 mm |
Keep the supplied side orientation so the main bending plane and axle axis lie in the print bed plane. Inspect supports and clear remnants from sockets, studs, axle and tile edge. Keep support contact off gripping faces where slicer painting/blocking allows.
The tool recipe retains the selected printer and spool temperatures/flow. Tool settings and Save tool setup remain separate from brick defaults and calibration. Brick Tested profiles do not certify a separator.
| Tool recipe | Default |
|---|---|
| Layer height | 0.12 mm with a 0.4 mm nozzle |
| Walls / infill | 5 / 45% |
| Supports | Enabled for projecting features |
| Assembly | None |
The designer links to the official LEGO separator usage guide. Buried or obstructed parts still need access.
From above: seat the underside sockets on exposed studs, support the build and press the ribbed handle down.
From beneath: engage the two lifting studs under a plate at an accessible edge and raise the handle while supporting the build.
For a smooth tile, introduce the rear edge at an exposed lip and lever gently.
For a Technic axle, line up the top cross axle and push straight with the exit side clear. Test gently on spare parts first; physical removal force, marking and durability remain unverified.
Saved flat, raised-lever and body-clamp tools retain their original generators, geometry and recipes. Use classic one-piece separator explicitly replaces an earlier tool in the designer; save another copy to keep both. The body clamp is no longer the default. Existing brick geometry, saved data, calibration and Tested evidence remain unchanged.