The elevation would be very easy to fit, the pivot is all there and working, the barrel is held horizontal by a toothed post attache to the turret roof, and a shorter one on the side of the breech, I can manually adjust the barrel by just pushing it up or down. If I had an elevation it would never get used, the main place it will get run is a billiard table flat, club meet hall. The trend now is to disable elevation, or move the activation off the fire stick, as it is a pain in the posterior at times.
This was the first time that I had given it a proper workout, the mere fact that it won't detrack no matter what i do was a source of amazement, out of the entire build, this was the one thing that I couldn't predict until it was completed. It works, so I can get on with finishing the paint, installing IR sensors etc now. I am not going to fit the side track guards, even though I have them sat here. They would be quite fragile and as tanks hit scenery all the time, I would be constantly gluing them back on.
I am now designing a British 6" howitzer, with a view to getting Silversurfer to build a diorama around it. Using the Arduino set up, it will be able to have recoil, fire IR, muzzle flash, and be activated by a pressure pad, as well as take hits, so all in all a pretty good battlefield add on. Good target practice etc.

https://www.the-blueprints.com/blueprin ... _howitzer/