This is a simple system to close your doors automaticly. It could be used indoors, in the garden or on a fence - feel free.
Also it is fully mechanical and needs no electronics.
Parts you need in addition:
- 1 bearing 606ZZ (maybe I will add a impeller without a bearing - it should work too)
- Some weights (Sand, leadscrew, or something thats fit in the cylinder)
- some glue to close the weight-cylinder
- some screws for mounting
- a strong cord
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