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Berg trampoline knob - Berg Trampolin Knopf

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A replacement knob for a Berg trampoline round mattress. Ein Ersatzknopf für die Rundmatte des Berg Trampolin.

Aktualizacja u źródła: 2 paź 2024

Informacje o modelu

I purchased a used Berg trampoline and some of the knobs to fix the round, green mattress were missing.

So I purchased some flexible cord (5mm, weatherproof) and designed my own knobs.

A file for printing in PETG is provided. STL file is provided in case you want to slice the knob yourself.

The design has ben created using openSCAD. The file has been attached. Hence don't hesitate to modify the knob according to your needs.

Step 1: check the current length of the flexible cord of your mattress. The following instruction is meant for a length of roughly 14 cm:

Step 2: you need

Step 3: cut 60 cm of the flexible cord

Step 4: knot the ends as shown below

Step 5: attach the thin wire to the flexible cord and move the thin wire through the knob's hole:

Step 6: move the knob to the knotted end. Ensure the knot will not open.

Step 7: attach the thin wire to the flexible cord again and move it through both holes of the mattress:

Step 8: Move the flexible cord through the mattress' hole:

Step 9: Add the second knob, move it and knot the ends of the flexible cord:

Step 10: Move the second knob down. Ensure the knot will not open.

You are done :-)

I don't have experience yet if the knob works reliable in all weather conditions: rain, storm, snow, heat.

I don't have experience yet if the knob works reliable when the trampoline is actually used.

Hence please use the provided files at your own risk.