The vast majority of bubbles can be removed with the vacuum method, but for truly professional results and to force the resin into the finest details while simultaneously reducing any remaining bubbles to microscopic dimensions, you need a Pressure Pot like this one, modified to print casting resin under pressure. The Pressure Pot has been specially modified for resin casting with the addition of a quick-connect connector to inject air from the compressor. Additionally, an air vent and a pressure gauge have been added. It's also perfect for creating silicone rubber molds. Look for video tutorials for Resin Casting with Pressure Pot - Printing Resin with the Pressure Pot. I have three available because my workload has shrunk and I no longer need all the ones I modified, but they're in perfect condition, used until a few days ago! Happy Resin Casting, everyone!