3D-Printed Click Pen

Requirements:Spring: 4-5mm diameter, 20mm±1mm lengthOne drop of lubricant (mandatory)Standard G2 refill (compatible brands: PARKER, SCHNEIDER, SEMIRAMIS; 98mm length)Not compatible with PILOT refills (110mm length)Print Specifications:Support-free printingLayer height ≤0.12mmVariable layer height recommended for speed/accuracy balanceProvided 3MF file:Print time: ≤2 hoursMaterial usage: ~16gAssembly:Tool-free assemblyPost-assembly lubrication required1-minute break-in process (specific method in tutorial)Test Validation:Printers: A1mini & H2DMaterials: PLA/PETG (Basics/silk/matte verified)Optimal material: PLA Basics Update: Added a new print configuration: Reduced thread clearance in barrel.After retesting the original configuration, both PLA and PETG perform acceptably. However, some users report excessive thread looseness causing functional failure – an issue I've been unable to replicate. To address this, the updated configuration:Increases thread pitch diameterDecreases mating