Jump to content
Sign in to follow this  
Dawn

Creating Larger Peices

Recommended Posts

For the last year I have been trying to make items for the garden that are larger than the household items of my past. I can't seem to get them fired without cracking and breaking up in the kiln. One item is a pagoda. It is about 17" tall after construction. I make it in parts and then fire it together with glaze. The other item is a stepping stone about 1/2" thick and flat.

Share this post


Link to post
Share on other sites

For the last year I have been trying to make items for the garden that are larger than the household items of my past. I can't seem to get them fired without cracking and breaking up in the kiln. One item is a pagoda. It is about 17" tall after construction. I make it in parts and then fire it together with glaze. The other item is a stepping stone about 1/2" thick and flat.

 

I have several articles in PMI on building with larger slab pieces than your pagoda and they are built in one piece. Is there are reason you are not building it as one unit?

Check "right angle jig" article,( PMI Jan/Feb 2008) which is also in the book, Ceramics Sculpture; Inspiring Techniques, pp. 87-88. Also tar paper forms article is in Jan/Feb 2009. The right angle jig sounds like it would work well. It describes joining slabs at right angles and standing them up after 2 sides are joined. Then joining the four sides as they stand. Braces are also incorporated inside the corners.

If you are worried about the seams, look into the tar paper forms. That avoids seams on obvious stress points. You might also try building a bird bath PMI Nov. Dec 2002.

 

When firing the piece make little 1/4" coils to support the piece. ( Vince Pitelka tip) This allows heat around the foot and prevents grabbing the shelf by the piece while it shrinks..

Share this post


Link to post
Share on other sites

For the last year I have been trying to make items for the garden that are larger than the household items of my past. I can't seem to get them fired without cracking and breaking up in the kiln. One item is a pagoda. It is about 17" tall after construction. I make it in parts and then fire it together with glaze. The other item is a stepping stone about 1/2" thick and flat.

 

 

I put some demonstration pics on my American Potters pages. You can see the right angle jig there. There are some corbels shown that were made using that jig. It is a simple construction of plywood and 2 loose boards slipped in to make a cradle to support slabs at a right angle. I think you could use one for your pagoda.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×