Non-Circular, Non-rectangular pattern

[sean.brogan]

I am currently trying to model a multi cavity mould tool. The cavities themselves do not follow either a circular or rectangular pattern.

I have modelled one of the cavities using a revolve internal to the tool. I have also sketched out on the upper surface centre points where I need the cavities to be.

I was hoping I would be able to copy the cavity feature, select a base point and then use the centres from my second sketch to place the cavities.

I dont know if its just me but I dont seem to be able to find this option. The copy and paste feature will likely work but it is hugely long winded positioning each cavity individually.

Does anyone know of any method I might be able to use to model such a part?
Any assistance would be greatly appreciated.

[mpatchus]

Look at creating an ifeature for the cavity.

[JDMather]

Can you attach the ipt file here?