Warm Glass website

Information from the archives of the Warm Glass website and bulletin board.

Tips by Date                          Tips by Category    

Warm Glass website

WG Bulletin Board

Cutting a Circle with a Tile Saw

Although most people use a tile saw to cut straight lines or slice pattern bars, it's also possible to use the saw to cut circles in glass.

Start by drawing the circle you'd like to cut on the glass.  It's best to draw with an ink that won't float off or dissolve in the water that lubricates the tile saw.

After the circle has been drawn, start the cutting process by cutting a number of straight lines that are tangent to the outside of the drawn circle.  You want to cut a stop sign that just touches the outside of the circle.  (If you started with a square with sides the same length as the circle's diameter, it will take four cuts to turn the square into a stop sign.)

Once you have a stop sign, trim the corners of the stop sign so that you have a 16-sided shape around the circle.  For small circles, this shape (called a hexadecagon, by the way) will nearly form a perfect circle.  For larger circles it may take another round of corner-trimming before the circle is done.

Finally, use your grinder or wet belt sander to clean up the edges of the circle and prepare it for firing.  This process sounds complicated, but it only takes a few minutes to cut the circle.  When it comes to cutting circles, the tile saw is both quicker and less expensive to operate than most glass saws.


Copyright 2006 Brad Walker.  All rights reserved.

Click here to sign up to receive daily updates for the Warm Tips website.  These updates will come via email and will alert you as new tips are posted.


Got a tip to pass along?

Or a tip you'd like to see?

Four Corners International, Inc.

4140 Clemmons Road, #320

Clemmons, NC  27012   USA

Copyright 2005-2006 by M. Bradley Walker.  All rights reserved.

Designed, implemented, and published by Four Corners International, Inc.