Although there is some work to be done still in terms of getting everything configured within the Smoothieware so that the Gemini 3D printer is working optimally, it’s already proving itself capable of making some nice prints:
This little guy was scaled down to reduce print time at the low test speeds I’ve been working at initially. This was done using a sky-blue 1.75mm PLA with 10% infill, 0.2mm layer height and 30/mms speed.
On my Mendel i2 printer the outer perimeter speed needs to be printed slower than the interior perimeters and infill in order to produce such a smooth outer layer – the Gemini required no such consideration, clearly demonstrating the benefits of the corexy movement and linear rails.
There is a slight layer glitch near the top – this was caused by the laptop controlling the printer going to sleep state. I was nearby and was able to resume the print quickly, however it did produce an artifact on that layer as a result.
At higher speeds there are some issues with the acceleration settings within the configuration file as well as some serious drawbacks to the filament pusher design. I’ll be working on increasing speeds and then designing my own extruder for the printer to resolve these issues and get the machine running at it’s true potential.
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