A little correction is needed here,as the small parts made were buttresses, and not stone columns as described in my video. Comments on my You Tube Chanel and here on BB`s blog will always be answered.
A FEW PICTURES
The eye catching problem seen above where the two walls meet.
Forming the buttresses in the mould by installing styrene sheet pinned into place,then cast up.
After slight trimming....
......it is tried out for the first time.
It slips into place.....
... and that creates an unbroken line. So ones eye now accepts, and proves that this continuous uniformity simply works well. Thanks for taking time out to look. BB