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Cleaning Internal Channels and Cavities

Resin can sometimes get trapped in your part, especially when printing internal channels like in this millifluidic piece. Here we show how you can use a syringe and compressed air to thoroughly rinse out these details.

1. Remove your part from the IPA bath






2. Run IPA through the part with a syringe






3. Clear channel using compressed air






4. Water-tight prints are perfect for fluidics

Tip

Here we use IPA with a touch of food coloring to demonstrate our internal channels. You can also experiment by filling internal channels with colored resins (which can be cured with a laser pointer) or glow in the dark materials for interesting effects.

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