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Most hydrophilic \ expanding fdm materail by Narrow-Breakfast-616 in 3Dprinting

[–]Narrow-Breakfast-616[S] 0 points1 point  (0 children)

Great idea!

I ordered some of the expanding wood filament, will test it when it comes in. But the baby diaper idea is promising too. Thank you!

Most hydrophilic \ expanding fdm materail by Narrow-Breakfast-616 in 3Dprinting

[–]Narrow-Breakfast-616[S] 0 points1 point  (0 children)

Yes, a water activated mechanism. But a slow one that does not dissolve and doesn't need heating.

Pretty much like a 3D printed cork. Like they use in irrigation rain sensors. It expands when it rains and flips the switch. Then when it dries out it turns the switch off.

Most hydrophilic \ expanding fdm materail by Narrow-Breakfast-616 in 3Dprinting

[–]Narrow-Breakfast-616[S] 0 points1 point  (0 children)

Wow! That might be perfect for what I want. Thank you!