This made it much easier to mount my new engines. They are set out from the body of the backpack where Loyalist ones are kept in close. I chose the Chaos backpack for the way the vents were attached. I drilled through the seam of the cardstock in order to hide it under the connection point with the backpack. I also pinned my two engines in place for stability. I cut off the vents and made sure my cuts were straight up and down so I could mount my engines and they didn't look odd or at a weird angle. Once I had my two engines built, I cut the vents off my Chaos backpack. The cardstock is cut to a suitable width as well as its only purpose is to bulk up the top of the tube so the vent does not look out of place glued on top. The length could be anything really, it comes down to looks. The pen tube is cut to 3/8 inch or 10mm long depending on what side of the pond you're on. pens come in lots of different sizes and such. The pen tube is 8mm wide from outside edge to outside edge in case you're wondering. I bought a pack of them a while ago for the tubing for various projects. The pen tube is from the cheapest pens I could find that had no printing on the sides of them. Aside from the drop pod vents, it's a single plastic pen tube, a Chaos Marine backpack and some cardstock. What you're going to need to do this conversion You really only need one if you are the casting type and then you could make a simple press mold and come up with enough for a whole assault squad army. The only bit that I used that might be hard to get a hold of would be the two drop pod exhaust vents. Maybe not the exact detail the Forge World ones have above, but close enough for me. A little more detail and these would most certainly pass first inspection and tabletop use. You could expand on this quite easily and probably come up with something pretty convincing. This project is more about seeing if it could be done quickly and cheaply more than anything else. After seeing Forge World release their Legion MKII Assault squad to go with their ever expanding Heresy era bits, I figured it was time to see if I could make my own jump pack on the cheap. A while ago I posted this Pre-Heresy World Eater Space Marine with a normal jump pack.

40k drop pod scorching effect airbrush