This is a left hand version of a Dreadnought autocannon.
Initially I made this design for my Dark Angels Venerable Dreadnought. I wanted to have weapon option for a Mortis pattern (ie. autocannons on both sides) but I wasn’t content with the available variants. So I decided to model and print my own version. I have now made some minor updates for that first design and this is the latest version.
I have magnetized all my Dreadnought weapons but the hole should be tight enough so that the weapon can be mounded without glue or magnet. You may need to bore it out a bit in order to make it fit.
This version has been successfully printed in white processed versatile plastic. Natural versions should of course also work but processed gives a smoother surface. Black could be better if you are going to use black primer.