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Geocaching PETLock for PET preforms (PETling) — zdjęcie 1

Geocaching PETLock for PET preforms (PETling)

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A simple locking mechanism to secure your PET preform with a regular padlock

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Źródło
Printables
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Creative Commons — Attribution — Noncommercial — Share Alike

This locking mechnism allows you to secure your PET preform using a padlock.
Good for multi-staged caches or lockpicking caches.

You will need 1 M4x30 bolt and 1 M4 nut for assembly.

 

Legal notice:
The geocaching logo used in this model is a registered trademark of Groundpeak Inc.
When using this model, please make sure to read and adhere to their Logo Usage Guidelines

 

Update 2025-08-24: Added Version 2 with a horizontal lock possibility. Also available with or without logo

 

Printing instructions:

  • Print each part once, placed on one of the rounded sides
  • Supports will be needed in any case
  • I'd recommend printing this in PETG / ABS or some other more durable material, especially if it's going to be exposed to the weather

Assembly instructions:

After printing, make sure to remove any left over support. Fit the two parts together, enter the screw (you might need to widen the holes on part 1 or add threads using an M4 cutter)
Insert the nut in the hexagon shaped hole at the bottom of part 1 (it's a tight press fit).

Enter the bolt. Don't pull it too tight, otherwise the two parts might not be moving.
Open and close the mechanism a couple of times to properly break it in.

Tagi