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Thread: Plastic that Sinks
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03-15-2016, 08:25 PM #7
- Join Date
- Mar 2016
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Why don't you make a cavity and fill it with sand ? ?
You could use some of the pla's (does not dissolve in water) with added metals. They vary from 1.5-4 x the density of normal pla.
Pla is technically biodegradable. But for that to happen it needs to be in a hot compost heat with the right moisture. temperature and bacterial levels.
I live in england and have many pla items outside - if they were water soluble - trust me - this winter, they'd have dissolved :-)
I think there's another issue you haven't considered - ABS is toxic to fish (not as bad as the resins used in SLA printing, though): http://hackaday.com/2015/11/11/are-y...-prints-toxic/
Oh by the way, I made a boat in PLA for a pool.... still hasn't dissolved.
If you want your fish to live, don't put lead in the decorations to keep them weighted.
I would personally print the item, make a simple mould and cast it in resin or something solid, that's your best bet for having something heavy that won't kill your fish from lead poisoning.
RE Resin - I honestly wouldn't know what to cast it in. Price is a big factor for us and admittedly the 3D printing alone is still new to me. But if you have any ideas of where to start I'd be more than happy to consider a different route
Thanks heaps for all of the replies, by the way!
Qidi X Plus 3 Paper thin first...
05-27-2024, 01:15 AM in General 3D Printing Discussion