Change shape

have cnc 3018 machine want to carve round coasters. when you design it on easel its a square how do u change it to a circle.

Add a circle to your design?
Maybe share your project to see if I’m misunderstanding.

hi i have attached the pictures of the item i am talking about. when you design it on easel its always a square rectangle how do you change it to a circle as we are starting with a circle not a square.
https://www.amazon.co.uk/TOKERD-Christmas-Unfinished-Embellishments-Decoration/dp/B08GJFPPX3/ref=sr_1_6?dchild=1&keywords=wooden+christmas+blanks&qid=1605432783&sr=8-6

this should help, top left corner

Capture

hi right sorted the shape but cant find the right cutter for it. tried the smalled fishtail and the one up fish tail making it all scraggily. any suggestions.

show us a picture please