Thanks Puzzdre; So this is "The mercury flow integrator"
For all the ones interested in my plastics process here’s a quick step by step. (After some tweaking in photoshop to make it fit in a 75 kb attachment)
1- The main channel shape
2- The outer shape mold in place
3- Curing the resin with a lamp and aluminum paper (this time it was epoxy with some pigment in the mix)
4- Rough shape in lathe after peeling off the cardboard
5- Final shape done
6- Drilling the smaller channels
7- Polished
8- Final assembly.