Custom-cut Resin Leviathan Dreadnought Base

I'm using these bases for my army. I love their design and I think it compliments the Black Templar look well. However, they don't come round in sizes big enough for a Leviathan Dreadnaught.

So I got the idea to buy a bigger base and cut it down to size. Should be easy, right?

After asking around for help online and locally, a friend stepped in. Warren did this for me and he wrote a little post on how he did this, take a look!

There's even a little clip on how the resin base got cut. I couldn't link to it directly, but here's what Warren said:

I mounted the base on small backer plate in a lathe, using some
double-sided tape. This particular base has some writing and rocks /
rubble, so keep that in mind when figuring out where the center should
be.
I then plunged from the face at a relatively low RPM, using a (cheap)
carbide single point threading tool to cut to diameter and get the
bevel. The plastic / resin turned really easily, and came off in
really long, soft ribbons, not dust. I ended up using a shop-vac to
suck these off, just so I could easily see the work. The surface
finish was good, with no melting or chatter.

Anyway, that's it! Here are some more pics. Thanks for looking, and thanks for doing this Warren!