Joins and Tolerances

These informations of the Bambu Lab P1S @ 0.2 mm, mostly PLA/PETG materials.

General Tolerance Guidelines

Fit Type	Clearance (total gap)	Notes
Press Fit	0–0.15 mm	Tight, permanent. PETG ~0.15 mm; PLA can go tighter. Chamfer edges.
Slip Fit	0.2–0.3 mm	Snug sliding fit. PETG prefers upper end.
Loose Fit	0.4–0.6 mm	Easy assembly, some play.

PLA prints crisper and holds tighter fits; PETG needs slightly more clearance (stringing, flex).

Use: Pegs, bearings, rods.
Tips: 0–0.15 mm gap. Chamfer edges to ease insertion. PETG flexes; PLA can crack if forced.

Use: Hinges, sliders, rotating parts.
Tips: 0.2–0.3 mm gap. Clean surfaces. Print moving faces vertical for smoother slide.

Use: Clips, latches.
Tips: PETG preferred. Clearance ~0.5 mm between engaging surfaces. Fillet snap base. Print snap arms lying flat (stronger).

Use: Flip lids, wallets, integrated hinges.
Tips: PETG better than PLA. Hinge ~0.5–0.8 mm thick. Print hinge vertically for max durability. Expect limited cycles.

Use: Modular parts, adjustable joints.
Tips: 0.2–0.4 mm per side. Chamfer entry. Print sliding faces vertical for smoothness.

Printed Threads: Use for large sizes (M6+). Add ~0.2 mm radial clearance. PLA crisp but brittle; PETG more durable.
Inserts/Nuts: Use heat-set inserts or captured nuts for strength. Follow insert datasheet for hole size.

Tolerance Test Models: Print clearance test blocks in your filament (0.1–0.6 mm steps).
First Layer: Use 0.2 mm chamfer to counteract elephant foot.
Orientation: Moving/sliding faces → print vertical. Snap arms → print lying flat.