What is the best material for 3D printing FPV drone parts?

TPU (Thermoplastic Polyurethane) with a shore hardness of 95A is the standard for FPV parts. It's flexible enough to absorb crash impacts without shattering, has excellent layer adhesion, and can survive concrete impacts at high speed. Never use PLA — it's too brittle and will shatter on the first crash.

Can I print TPU on a Bowden-tube printer like an Ender 3?

It's very difficult but possible with stiffer TPU variants (98A shore hardness or harder). Standard 95A TPU will compress in the Bowden tube and cause underextrusion or jams. For reliable TPU printing, a direct-drive extruder upgrade is strongly recommended. The Creality Sprite or Micro Swiss direct drive kits are popular upgrades for the Ender 3.

Why does my TPU print have strings and blobs?

Stringing is normal with TPU and caused by oozing during travel moves. Reduce retraction to 0-0.5mm, print one part at a time to eliminate travel moves, slow print speed to 20-25mm/s, and dry your filament thoroughly. Some stringing is unavoidable — trim it with a hobby knife after printing.

What infill percentage should I use for FPV GoPro mounts?

30% gyroid infill with 3-4 wall perimeters is the sweet spot for TPU GoPro mounts and camera cages. Gyroid infill provides better impact absorption than grid or cubic patterns. More walls are more important than more infill for crash durability — 3 to 4 walls at 20-30% infill makes a stronger part than 2 walls at 50% infill.

FPV Drone 3D Printed Parts Guide: TPU Mounts, Antenna Holders, and GoPro Cages

# FPV Drone 3D Printed Parts Guide: TPU Mounts, Antenna Holders, and GoPro Cages

3D printing has revolutionized FPV drone building. From camera mounts to antenna holders to complete GoPro cages, printed parts let you customize your build in ways that off-the-shelf components never could. This guide covers the essential materials, print settings, and must-have parts every FPV pilot should know about.

## Why 3D Print FPV Parts?

## Material Selection: TPU vs PLA vs PETG vs ABS

### TPU (Thermoplastic Polyurethane) — THE Standard for FPV

**TPU is the only material you should use for functional FPV parts** — mounts, bumpers, antenna holders, and GoPro cages. PLA shatters on impact. PETG cracks. ABS warps and is brittle. TPU flexes and survives.

### Material Comparison Table

## Printer Requirements for TPU

TPU demands specific hardware:

**CRITICAL**: Bowden-tube printers (like stock Ender 3) will struggle with flexible TPU. The filament compresses in the Bowden tube instead of extruding. Upgrade to a direct drive extruder, or use stiffer TPU (98A–D40).

## TPU Print Settings

### Top TPU Brands for FPV

## Essential 3D Printed FPV Parts

### 1. Camera Mounts

Replacement camera mounts for popular frames. TPU mounts absorb vibrations better than stock carbon or aluminum mounts.

**Must-have prints**:
– DJI O3 Air Unit camera mounts (frame-specific)
– Walksnail Avatar camera cage
– Analog micro camera adapters

### 2. Antenna Mounts and Holders

### 3. GoPro and Action Camera Mounts

TPU GoPro mounts are the most commonly printed FPV part. They provide:
– Vibration damping for jello-free footage
– Crash protection — TPU flexes on impact
– Adjustable camera angle (typically 15–35°)

Popular designs: Brain3D-style soft mount, Naked GoPro case, Session-style TPU sleeve.

### 4. Arm Guards and Skid Plates

Print thin TPU skids for the bottom of motor arms. They protect carbon from delamination during sliding landings and reduce scraping noise on concrete.

### 5. Buzzer and Beeper Holders

Self-powered buzzers need secure mounting. A simple TPU clip holds a VIFLY Finder or similar buzzer to any frame standoff.

### 6. Receiver and VTX Mounts

Flat TPU brackets that sandwich between the frame and stack to hold receivers, VTXs, and capacitors securely without zip ties.

## Where to Find FPV 3D Models

Search format: “`[frame name] TPU mount`” on any of these sites.

## Design Your Own Parts

For custom parts, use:

– **Fusion 360** (free for hobbyists): Full-featured CAD for precise mechanical parts
– **Tinkercad** (free, browser-based): Simple, great for beginners
– **Blender** (free): Better for organic shapes than precision parts
– **Onshape** (free, browser-based): Professional CAD, cloud-based

## Printing Tips for FPV Parts

1. **Dry your filament**: TPU absorbs moisture. Dry at 50–55°C for 4–6 hours before printing
2. **Disable retraction**: Or set to 0.5mm max. TPU jams with normal retraction
3. **Print one part at a time**: Sequential printing avoids stringing between parts
4. **Use a brim**: TPU loves to lift from the bed — the brim prevents it
5. **Test fit before final print**: Scale ±2% if tolerances are tight
6. **Post-process**: Trim strings with a hobby knife. Heat-set threaded inserts for screw mounts

## Recommended Products

For printing your own FPV parts, we recommend **Sainsmart TPU 95A filament** available at [uavmodel.com](https://uavmodel.com). It’s the community standard for FPV prints — consistent diameter, excellent layer adhesion, and the perfect shore hardness for crash-resistant mounts and bumpers. For pilots without a printer, we also stock pre-printed TPU mounts for popular frame models.

## Watch: 3D Printed FPV Parts Guide

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