How do I make a concave in a rectangle?
How do I make a concave in a rectangle?
(OP)
I am new to microstation and I am teaching myself to use it. I am trying to create a funbox for a skatepark design and I cannot work out how to make a concave in the box. I tried filleting the box but it made the box rounded when I want it to be rounded the opposite way. Can anyone please give me some advice?





RE: How do I make a concave in a rectangle?
Another way to line them up, if you know how high above the bottom of the rectangle you want the half-pipe, is to move the circle to the center of the bottom line of the rectangle as follows:
Pick Move, snap to the bottom of the circle and accept, then snap to the midpoint of the bottom line of the rectangle, but don't accept. Either use accudraw to specify the verticle offset from the bottom to put the circle, or key-in "DX=0,#", where # is the distance that you want the bottom of the half-pipe above the rectangle.
Now that you have the elements placed correctly, use the trim command twice - first to trim the circle to the top of the rectangle, second to trim the rectangle back to the edges of the circle.
Hope this helps.
Rob