Stackable shooter

prusaprinters

<p><strong>Mission</strong></p><p>Find material and parameters for printing glasses for parties and trips.</p><p>&nbsp;</p><p><strong>Design</strong></p><p>I chose the shooter as the first project. The advantage is low material consumption and fast printing for efficient parameter tuning. The shooter was modelled in Autodesk Fusion 360 from scratch. I wanted a small volume of 0.2 - 0.3 cl and good stackability.</p><figure class="image image_resized" style="width:58.3%;"><img src="https://media.prusaprinters.org/media/prints/148398/rich_content/20579380-5d25-4880-b782-08037a30793d/shooter_03.jpg#%7B%22uuid%22%3A%225d18b882-2880-4901-bbf7-e65ca5b3a758%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>&nbsp;</p><p><strong>Material</strong></p><p>I wanted transparent material and of course an FDA food-contact compliant. I chose the ColorFabb XT clear filament, which meets the basic requirements and at the same time has a good heat resistance and mechanical properties.</p><p>&nbsp;</p><p><strong>Process</strong></p><p>I realized very quickly that glass with seams is not what I want. The only relevant seamless option is probably a spiral vase mode. &nbsp;One of the conditions of spiral vase mode is printing with a single perimeter. To limit this disadvantage, I chose E3D V6 0.8 mm nozzle.</p><p>Temperature-wise I started with the default PrusaSlicer temperature profile for ColorFabb XT filament:</p><p>Nozzle - First layer: 260 °C - Other layers: 270 °C<br>Heatbed - First layer: 90 °C - Other layers: 90 °C</p><p>Both feel exaggerated, especially the heatbed. ColorFabb recommended printing setup is significantly lower:&nbsp;</p><p>Nozzle 240-260 °C<br>Heatbed 50-70 °C</p><p>My model files have set temperatures 260 °C and 70 °C. It works fine but you can probably still go lower.</p><figure class="image image_resized" style="width:85.96%;"><img src="https://media.prusaprinters.org/media/prints/148398/rich_content/195002a1-7585-44cd-9d2f-03c5b8f26e3a/shooter_slicer.jpg#%7B%22uuid%22%3A%22c076c2e7-ec42-4f17-b514-2ed3f18a7f70%22%2C%22w%22%3A2835%2C%22h%22%3A1707%7D"></figure><p>I experimented with the layer height. All 3 basic profiles work well and can be used to achieve different optical properties of the print.</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/148398/rich_content/c7fbca41-0e61-47c8-98e5-4f13cd53abe2/shooter_layer_height.jpg#%7B%22uuid%22%3A%223af0af5a-7718-4f6f-ba20-245138495ec9%22%2C%22w%22%3A4032%2C%22h%22%3A1767%7D"></figure><p>My favorite is 0.55 mm, which has clearly visible layers and is the clearest. You will need 7.5 g of filament and 15 minutes to print it.</p><p>Enjoy!</p><p>&nbsp;</p>