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I would like to use the the large tower in the same way as the MBA Round wall corner. The Dwarven Forge large tower is very versatile.I may not be possible. I have the option of bridges

The battlements over hang to much I was hoping there was some way that by using the crenulation parts to make a round wall from the large tower. I want the towers to open on to the walkway.

The DF parts and the MBA walk ways are not the same height. I need the DF small towers with the Large towers for this configuration. Note the warped wall. It was not warped when it was shipped. It is hot here. Store them Flat! I will pin them.

You will need to pin them to prevent this anyway.