One takeaway of 40k 8th edition is that since it’s harder to get cover, it’s really good to just be out of sight entirely but still able to fire back. Accordingly I’m adding some Whirlwinds to my Space Marines. Unfortunately, official Whirlwinds are not only expensive ($58US versus $38US for the Rhino chassis), but seemingly hard to come by. They’re actually out of stock right now even on Games Workshop’s website!
So I designed a reasonable model for 3D printing. The STLs are now available for free on Thingiverse. As a cute touch, the missile ends are magnetized to switch between high explosive and wide area styles. As usual the whole thing is designed to print easily & reasonably well on typical home printers, no supports needed.