This is a simple demo object. It has gears on shafts inside a shell and would require internal support structures that would be pretty difficult to remove without support that dissolves.
Update: It worked! I've had trouble getting PVA to stick to ABS, however it sticks pretty well to PLA when you extrude both at around 210c. Here's a video:
http://www.flickr.com/photos/tbuser/6733182253/
Update 2013-02-04:
Also works with dissolvable HIPS filament supporting ABS. See: http://www.flickr.com/photos/tbuser/8522775217/in/photostream
| dissolvable_support_gearbox.scad | 2.8KB | |
| gear_box.stl | 593.9KB | |
| gear_box_support.stl | 533.7KB |
