I did the 3d modeling and all of the molding and casting work. The autocannon is a reworked version of my older model which I did 5-6 years ago. Anthony helped me revise some of the detailing with a quick sketch which I then modeled in 3d and kept the weapon to the same size and overall profile as the original.
The missile launchers are a variant of the launchers I made for my Mecha Front Lynx model. I extended the launchers and added an extra row of missiles.
The Tsunami Class Beam Cannon is just a really big gun that'll fit larger models like Mobile Suit Gundam stuff and is also in a scale that's roughly compatible with GW's Tau Riptide.
3d Renders of the Autocannon
Casts of the Autocannon
3D model of the Tsunami Heavy Beam Cannon
Casts of the Tsunami Beam cannon. Modified Tau models by games workshop shown for scale.