445nm Build Question

I'm about to start some lathe work for my 445nm laser host. Before I waste any copper, I would like to know approximately the distance between the laser diode and the lens when focused to infinity.
I am using 445nm axis glass and a a140 diode.

I will be modifying the host that is linked below so it will have better heatsinking capabilities, but i will be using the focusability of the host. I only want the lens to come close enough to the diode to columate the beam, but not much closer. I will be able to fine tune that after.

The host seems to be able adjust the distance of the lens by about 8mm.

Thanks,

Steve



Focalprice.com offers 200mW 532nm Adjustable Green Beam Laser Pointer with Lock (Black) ,discount 200mW 532nm Adjustable Green Beam Laser Pointer with Lock (Black),200mW 532nm Adjustable Green Beam Laser Pointer with Lock (Black) products,low price 2