Our PVA (Poly Vinyl Alcohol) is water soluble and comes on a 500g spool, a more handy size for experimentation, and is for 1.75mm extrusion. We have had is manufactured to be easier to use and dissolve than the Makerbot brand PVA. We have tested it on Makerbot 3D printers.
You can just swap the filament from your extruder, and load in the PVA filament as normal, then build objects just like you would with ABS or PLA- just change the extrusion temp to 185-195 degrees
We have experimented and tested it and produced a fact sheet with some cool dissolving Octopus photos - check it out OR check out the dissolving octopus here
PVA dissolves rapidly with simple submersion in water.
Fine parts will begin to dissolve immediately!
To speed up disolving, gentle stirring can be applied. Warm water also speeds up the process.
BYE BYE OCTOPUS
We printed our octopus with 2 shells, 10% Fill and at a 0.2 layer height. He was
4.5 cm wide and his legs were 0.4mm tall/thick, while his body was 3cm tall.
As you can see in seconds the wispy strings between the legs dissolved.
By 30 minutes he almost had no legs. By 2hrs he was gone.
We started with water at 34Â°C, which had dropped to 24Â°C within 1 hour.