mason 40mm

Does anyone here have a Mason 40mm RDA and is able to post the dimensions of the positive post in the centre? i need it to map tool paths for a BF modification for a cnc mill but I wont have the RDA for a while but I need to design the tool paths to make the modifications. Thanks.

I have a Mason by Vaporgate 40mm and I'm running two coils on it but the two coils are double parallel so there are four wires in each wrap on the coils and they are wrapped four time and it is ohmed out at .04 I am running them on a customized Hammer of God box mod and it chunks out massive...