A shinkage ruler can be a very necessary and helpful tool.  This blog will give you some resources to help you determine the shrinkage rate of your clay as well as   some different ways to make a shrinkage ruler and also give you a link if you care to purchase one.  

The first step is to determine the think rate of your clay.  If you use a premixed clay you can go to the manufacturers website and look at the shinkage rate.   If the rate is say 12% and you want a 6 inch tall pot that is 4 inches wide.  You can draw a line 6 inches long and another line 4 inches long and use your printer to enlarge  your lines by 12%.  Use those enlarged lines to create your pot.  

I find my shrinkage rate differs a little from the manufacturer especially if I’m using a recycled clay so the method I use  Can b found on the Ceramics Art Network video on Youtube. Click on the link here Ceramics Art Network

You can do a web search of Clay Shinkage Ruler Printable  and here are some more resources to create a shinkage ruler 

https://www.printable-ruler.net

If you would like to purchase one you can get one from Diamond Core Tools 

Imperial Version

Metric Version

Diamond Core Tools also has videos on how to use.

I’m not affiliated with any of these companies or products.  But I have used them and use them as a resource

See you in the next blog and don’t forget to sign up for the news letter on the contact page