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CrissCross Shapelock Rod Experiment — zdjęcie 1
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CrissCross Shapelock Rod Experiment

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An experiment with form closure. Assembly is LIFO "last in first out".

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Informacje o modelu

Źródło
Printables
Kategoria
Engineering
Licencja
Creative Commons — Public Domain

WARNING: 
IIRC clearances need to be adjusted a bit to reduce post processing effort.
It just demonstrates this specific form closure principle.
Beside that it's not really useful for anything beside noisy rattlesnake fidgeting maybe.

It's likely too fragile as a toy for children and a choking hazard.

There's no closing clip for the end.
I just used a bit of transparent adhesive tape (see in the photos).

I created this thing because during my investigations pertaining chains that feature form closure I found the chapmanpuzzles (see links below), and on a whim wanted to recreate this basic structure.

Properties

It's very weak against tensile load due to printing layer orientation.
Rotating the part for other printing layer orientations only shifts the problem around.
If you want it stronger then I'd suggest going for a multipart design (or use non FFF printing).
Note that there was no intention whatsoever to get a stiff rod here.
IMO the proper way to get a stiff rod is by tensioning rather than by reducing clearances.
Look up ReChain RepRec on the RepRap wiki for more info on that idea.

Links

Print Settings

Rafts: No
Supports: Yes
Infill: high

Category: Engineering

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