OM System Olympus m4/3 MTF cap MC-14 MC-20 BC-3

Here is a professional and catchy description for your MakerWorld upload, tailored for the 3D printing community.

Protective Cap for Olympus / OM System MC-14 & MC-20 Teleconverters

This is a custom-designed protective cap for the Olympus / OM System M.Zuiko Digital 1.4x (MC-14) and 2x (MC-20) teleconverters.

If you've lost your original BC-3 cap or simply want a high-visibility replacement (like the red version shown in the photos) to easily find it in your camera bag, this model is the perfect fit. It is designed to mimic the secure fit of the original LR-2 and BC-3 series caps, ensuring your optics stay dust-free and protected from scratches.

Print Settings & Recommendations

• Material: I highly recommend using PETG for this print. Teleconverters are often used outdoors, and PETG offers better temperature resistance if your gear sits in a warm camera bag or under the sun.
• Alternative: PLA works perfectly fine for indoor storage or general use, though it is less heat-resistant.
• Supports: No supports needed! The design is optimized for clean printing directly on the build plate.
• Layer Height: 0.16mm or 0.2mm for a smooth finish on the threads.

Key Features

• Perfect Fit: Snug twist-lock mechanism compatible with the Micro Four Thirds (MFT) mount.
• Ergonomic Grip: Features a knurled/textured edge to make it easy to screw on and off, even when wearing gloves.
• Gear Protection: Prevents rear-element damage during lens swaps in the field.