Ellipses drawn pointed at the ends
“The rim of my bowl looks like an almond with sharp corners.”
What is happening
The rounded opening of a cylinder or bowl terminates in sharp, pointed corners where the curve meets the outer edges. The vessel appears pinched and flat rather than cylindrical.
An ellipse represents a circle viewed at an angle and possesses continuous curvature throughout. The brain knows a cup has left and right edges, prompting the hand to draw two distinct arcs that collide into points.
The 30-second test
Look at the outer ends of your ellipse upside down: if they form pointed corners rather than gentle curves, the shape is faulty.
How to fix it
- Lightly mark the major horizontal axis and minor vertical axis crossing at ninety degrees.
- Establish four rounded end marks rather than pointing outward.
- Draw the entire rounded curve using a smooth, fluid shoulder movement.
- Check that the outer ends form soft U-shapes, not pointed V-shapes.
Can it be saved? Rescue
Round off the sharp outer corners with a pencil and gently erase the pointed tips.
Drill: Cylinder rim loop
About 10 minutes. You need:
- pencil
- scrap paper
Draw twenty continuous ellipses without lifting the pencil, focusing entirely on making the left and right turnaround points round like sausage ends rather than sharp corners.
Background reading
General teaching sites on this subject. They are a reading list, not page-level citations for this advice.
The advice is a generated synthesis of common teaching practice and has not been checked line by line against any source; treat times and difficulty as estimates.