After a previous post where I listed my steps to printing success with the new Solidoodle Press, I am now on a roll with completing prints. My secret? Convert the Press to be more like one of the Up! series of 3D printers!
There are really only 3 key things you need to do this, 2 of which are obvious in the time-lapse photos above of my latest complete print of the Beer Bottle Lock:
- Avoid the mess of glues and sprays – much of the success of the Up! 3D printers is that they use a perforated PCB as the printing plate. I bought 2 perforated boards from Jaycar and cut them to fit on top of the existing glass plate. A bit of masking tape is all that’s needed to secure them in place. Just make sure they’re completely flat, shiny side up.
- After watching all my early prints fail on the Press, I realised the other element the Up! printers combine with the perforated board is a good ‘raft’ base (automatically generated for the Up!), creating a solid lock into the perforations and evening out any issues in bed level before you get to your product. This is not a feature available in SoliPrint, so for the print pictured above I actually modeled my own 0.5mm thick raft in CAD. While this is a bit more complicated if you’re printing downloaded models, it’s relatively quick to add using the freely available MeshLab or similar STL editing software. However if it’s your own design, it should only take 30 seconds to add this detail before exporting to an STL. Pictured below is the raft after peeling away from the Beer Bottle Lock, along with photos of how the Up! Plus 2 prints a raft before putting your STL on top for reference.
- Change the nozzle temperature and printing speeds. The Up! Plus 2 prints ABS plastic at 260 degrees, while the default for the Press is only 215 degrees. This is too low to properly melt ABS and let it flow. At the moment I’m using 240 degrees with good results, and also slow the printing speeds so that there is less shaking and opportunity for error. My settings from this successful print are below.
I realise many people are having success using a variety of other hacks/fixes/additions which you can find on the useful SoliForum website, but this is my own twist on improving the Solidoodle Press. Also a big thanks to Solidoodle for releasing the new SoliPrint software version 1.1.1 which has corrected some of the bugs I initially wrote about.
Finally, below are some detailed photos showing a comparison of the print from the Solidoodle Press (pink), to the same file printed on the Up! Plus 2 (green). The main thing I’m noticing is that the Press does an average job of flat surfaces parallel to the print plate, failing to fill them in completely like the Up! Plus 2. But the other surfaces are quite good! Of course it’s important to keep in mind the Press is about a third of the price of the Up! Plus 2, so expecting the same quality is asking a bit much. Yet I believe if Solidoodle continue to improve their SoliPrint software, the quality could really come close to that of the Up! Plus 2. Time will tell.
– Posted by James Novak