A custom acrylic reservoir we have just completed for a customer. For this one the customer did the CAD for us, although we can certainly do the CAD if necessary. We had to make some adjustments to the design to take into consideration the limitations when machining, strength etc. We used a high end production CNC router then polished manually with a pneumatic random orbital polishing tool. We dont use o-rings, instead we use gaskets. We have a method developed during the Spectre development for higher durability, strength and lifespan.