Little Joe II

Files included

• 10 STL files in millimeters — 14 assembled pieces using the stated quantities
• Individual editable STEP parts and an assembled STEP reference
• Separate multipart print-layout 3MF and assembled reference 3MF — geometry only
• Editable CadQuery source, parameters and regeneration instructions
• Assembly guidance, historical source notes, CAD previews and digital QA evidence

Version: Revision A — Prototype · November 5, 2026. Dimensions are in millimeters.

Use the print-part STL or 3MF files for slicing. The assembled reference shows the complete model and is not a one-piece print. STEP files open as solids in CAD software; the supplied source and parameters let you regenerate the parts.

Historical configuration

QTV 12-50-001. Sourced dimensions and estimated details are distinguished in the package notes.

Before printing

Dimensions & fit

1:75 scale; 349.551 mm assembled height; 52.155 mm nominal main body diameter. Configuration: QTV 12-50-001.

Build volume

Modular files and a separate print-layout 3MF are included. Check every part and rearrange the layout for your actual printer; no printer envelope has been physically validated.

Material

Filament, printer, nozzle and calibrated fits remain to be selected and physically tested.

Orientation & supports

Fins are flat; other files start at Z=0, which alone does not validate their orientation. Tower braces, bell interiors and the recovery cap may need supports. The supplied cap rests on its bridge crest, so support the broad base above it and preserve removal access.

Printer settings

Ten unique print files make fourteen assembled pieces, including repeated fins and sleeves. Shells are hollow; thin fins and lattice members remain solid. No tested nozzle, material, support or slicer profile is supplied.

Hardware

Adhesive and any display or recovery cord are not supplied. No motor mount, motor, launch hardware or flight recovery system is included. The cap, bond and cord attachment have no qualified load rating.