TerpTrainer – LST-Clips (Low Stress Training)

These TerpTrainer (LST clips) are made for Low Stress Training (LST) a gentle technique where branches are guided sideways/horizontally to build a wider, more even canopy. 
This helps improve light distribution, boost airflow, and control plant structure with minimal stress.

I designed three training levels. They describe how strongly the stem/branch is bent, not the physical clip size: 
LvL 1 – light bend / gentle angle
LvL 2 – medium bend 
LvL 3 – strong bend (shown in the photos) 

✅ Important: 
Start LST early while branches are still soft and flexible. If you wait too long, stems become woody/rigid and are much harder to bend without stressing the plant. 

✅ Fully scalable: 
You can scale the clips to any size you need — the LvLs remain the bending strength. 

📦 Files included: 
STLs for LvL 1–3 
plus a .3mf file containing all levels with my recommended print settings. 

🧵 Printing recommendation: 
I recommend PETG because it is more durable and not as stiff as PLA, making it ideal for training clips. I personally like “Das Filament” PETG since it’s a bit more flexible than most other PETG brands. 

PS: The name “TerpTrainer” was suggested by a community member (RZN420). 
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