3-D Model of French 8lb Gribauval Cannon for 3-D Printing

I'm working up the courage to invest in a resin-based SLA 3-D printer. I thought it would be an excellent tool to augment my laser and significantly increase my making capabilities for wargaming terrain, vehicles and maybe eventually figures. Before I'm willing to pull the trigger, I need to make sure my 2-D CAD skills can translate well to 3-D modeling. This project is a learning exercise in using the free 3-D modeling program Blender.

The model is of a French 8 lb. Gribauval Cannon. This was chosen because there are some decent plan and elevation drawings available, and it's a common cannon made at several weights. It was used both in the Napoleonic wars and in the USA during the war of 1812. I figured making something 'real' instead of the same tutorial objects would help me learn rather than just repeat what tutorials are doing.

There's a lot more work to do before this would make a decent 28mm figure, but the bones of the structure are there. So far I've invested about 40 hours learning the software and making the model. A skilled Blender modeler probably could have done this in an hour. I have a lot to learn, but this exercise is encouraging that I may eventually develop the skills to properly utilize a 3-D printer of my own and make my own models, not just print pre-made models from the Internet.