Unicorn Piggy Bank MMU (Multi-Material)

prusaprinters

<p>My daughter wanted a piggy bank for all her money :-)</p> <p>Suprisingly, she likes unicorns, so I created a unicorn piggy bank for her.</p> <p>The main body is MMU (Multi-Material) ready and already split up in several parts.<br/> I used a Prusa MK3s with MMU2s attached to it.<br/> The colors I used are described in the print settings.</p> <p>The slot for the coins is 4x32mm wide. Therefore, it should be big enough for all currencies.</p> <p>If you print one I would be happy to see the makes of it and which colors were used.</p> <h3>Print instructions</h3><p>Filaments Used:</p> <p>Prusament - Galaxy Black<br/> Prusament - Azure Blue<br/> Polymaker - True Yellow (Polyplus)<br/> Fillamentum - Traffic White<br/> colorfabb - Fluorescent Pink</p> <p>Print Settings used</p> <p>Slicer</p> <p>Prusaslicer 2.1.0 RC1</p> <p>Profiles</p> <p>I only used the standard profiles that came with Prusaslicer.<br/> They work very good for me and I did not have problems with my MMU2s setup at all.</p> <p>Files</p> <p>Unicorn Piggy Bank - Back-Cover</p> <p>Layer Height: 0.2 mm<br/> Infill: 10%<br/> Perimeters: 2<br/> Note: I added a modifier box in prusa slicer to make the parts around the screws solid.</p> <p>Unicorn Piggy Bank - Stand</p> <p>Layer Height: 0.2 mm<br/> Infill: 10%<br/> Perimeters: 2<br/> Note: Although the base has a round opening the main body fits pretty well. It is not needed to use 0.15 layers, but feel free to do so.<br/> The hole for the M4 screw is big enough to hold a nylon washer.</p> <p>Unicorn Piggy Bank - Screw Cover</p> <p>Layer Height: 0.2 mm<br/> Infill: 10%<br/> Perimeters: 2<br/> Note: As noted in the post-printing comments, the screws fit in very tight. This part is not needed to have a functional piggy bank, it is just for optical reasons and would probably look even better when printed in color.</p> <p>Main Body</p> <p>Files:</p> <p>"Unicorn Piggy Bank - Blue" - used for middle hair and part of the horn<br/> "Unicorn Piggy Bank - Black" - used for outline and side of the main body<br/> "Unicorn Piggy Bank - Pink" - used for horn and parts of the bow tie<br/> "Unicorn Piggy Bank - Traffic White" - used for the face, ears and middle of the bow tie<br/> "Unicorn Piggy Bank - Yellow" - used for hair and horn<br/> Layer Height: 0.2 mm<br/> Infill: 10%<br/> Perimeters: 2<br/> Note: The files need to be imported into Prusaslicer at the same time when in MMU Mode. Prusaslicer will automatically put together the complete body and lets you chose the color.<br/> It also makes sense to create modifier boxes around the parts for the threads to ensure that it does not melt trough the perimeters and fits nicely.</p> <p>Post-Printing</p> <p>Threads</p> <p>I used M4 threads which I "melted" into the printed body. I wanted to be able to open and close the piggy bank without losing the stability of the screws.</p> <p>For the three main threads I used three M4X8X6 brass threads. To connect the base I used one M4x6x6 thread.</p> <p>NOTE: You will not be able to fix the back without threads. If there is demand I could upload a version with smaller holes in the main body to fit M4 screws directly without threads.<br/> Feel free to comment if you want this version of the file.</p> <p>Screws</p> <p>To match the threads I also used M4 screws to connect to the them.<br/> If you plan to use the star screw-covers please note that the opening is quite narrow. You need to use a lot of force to get the screw head in there (I actually used a hammer). But afterwards it will not come out.<br/> Also, I used nylon washers between the screws and the back cover.</p>