Model Railway Industrial Brick Chimney FDM and Resin

Someone asked me to do this sort of design for them, but they wanted sole rights to the design. I decided against it as my objective is to make designs available to fellow modelers. Industrial Chimneys are found all over the world for all sorts of industries from the 17th Century to the modern day. This is a Chimney design that was made out of brick, and many examples of these can still be found today. Industrial Chimneys can be very tall, and this design in real life would be 24m tall (about 78ft). This design has been designed at OO scale (1/76 scale), even in OO scales it is over 300mm in height, so I have designed it in four sections. Base, Lower Stack, Upper Stack, and Crown. These sections have printed fine on my AnyCubic Photon M3. For Those who model N or other smaller scales, I will include the chimney as one complete item that can be scaled down. If you don't want the chimney to be so tall you can print it without the base and it will still look fine. The main stack is tapere