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Stem Connector for Stihl Grass Trimmer (Toy) — image 1
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Stem Connector for Stihl Grass Trimmer (Toy)

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My kid broke the stem connector of his Stihl Grass Trimmer. The toy discontinued, so I created a replcament for it.

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Model information

License
Creative Commons — Attribution — Noncommercial — NoDerivatives

A replacement handlebar clamp and shaft connector designed for kids' toy grass trimmers / brushcutters (specifically popular Stihl-style toy models).

The original factory plastic clamps on these toys are notorious for wearing out, loosening up, or snapping under heavy play. This robust 3D printable replacement features a two-piece clamp design with locking alignment pins to secure the handlebars firmly to the shaft, preventing any unwanted twisting or sliding.

### Key Features:

- Perfect Fit: Designed to match the exact tube and handlebar geometry of the popular toy trimmer.

- Secure Lock: Features internal alignment pins/slots (as seen in the CAD model) to ensure the shaft and handlebars lock perfectly into position.

### Hardware Needed:

- 4x bolts and nuts to clamp the two main structural halves together.

### Printing Recommendations:

- **Material:** PETG or ABS/ASA is highly recommended for impact resistance and durability during active play. PLA can work, but might crack if the toy is dropped or heavily stressed.

- Perimeters/Walls: 4-6 walls for maximum structural strength around the bolt holes.

- Infill: 40-50% (Rectilinear or Gyroid).

- Supports: The bottom clamp half prints cleanly, but the top section with the overhanging tube sockets may require minimal supports depending on your printer's bridging capabilities.

### Feedback & Community:

I design these parts to bring broken toys back to life! Please share your makes, leave a rating, and provide your constructive criticism in the comments. Let me know if the tolerances fit your specific toy model or if any dimensions need to be tweaked!

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