I've been wanting to tat something from 'Tatting with Visual Patterns' by Mary Konior. I thought I'd start with the Spinning Wheel place mat, which is really a wide edging for a fabric circle. I wound my shuttle with Milford Holiday Red size 20 and followed the diagram. I did a few repeats and it seemed to me that the edging wasn't curving. How was it ever going to fit around a circular centre?
Muskaan's post about methods to make tatting curve. Shorten chains in strategic places was one tip. I shortened the chain between the repeats, ie the one that will lie alongside the fabric, from 4-4-4 to 4-4. Aha, it worked, thanks Muskaan.