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Trimming Lids.


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#1 Babs

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Posted 15 July 2014 - 05:50 PM

Off to trim lids on crocks and casseroles.

How do  you do this.?  How do you get the lid out of hte chuck unharmed?

I sue the lid's vessel as a chuck.

Any other ways?

Different for large or small lids?



#2 Brian Reed

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Posted 15 July 2014 - 06:19 PM

Depends of the shape or the lid, but I tend to use my giffin grip for most lids and then finish them off upside down in the vessel they match to make sure they mate well.


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#3 Min

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Posted 15 July 2014 - 07:07 PM

I don't use a chuck, throw upside down then trim right side up on a neoprene disc. Piece of firm foam in center to stop from deforming it if I'm throwing a knob on. Flange on the lid, no gallery on the pots.



#4 Colby Charpentier

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Posted 15 July 2014 - 10:14 PM

I don't use a chuck, throw upside down then trim right side up on a neoprene disc. Piece of firm foam in center to stop from deforming it if I'm throwing a knob on. Flange on the lid, no gallery on the pots.

 

This. But if you'd like to continue using the pot as a chuck, use thin plastic, paper, or some sort of release like talc or corn starch in between the lid and the pot to prevent "sticking."



#5 Pres

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Posted 16 July 2014 - 12:19 PM

I have always used the pot to trim the lid, but sometimes trim it with the GG, as others have said.
A nicely fitting lid is important, so sometimes I wii recenter the lid upside down to trim the galley.

Simply retired teacher, not dead, living the dream. on and on and. . . . on. . . .                                                                                 http://picworkspottery.blogspot.com/


#6 schmism

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Posted 16 July 2014 - 01:16 PM

I throw my lids upside down off the hump.  So when i need to trim them i trim the tops.  I can either set it on the pot its going on, or set it on the wheel head and trim normally.

 

If i need to fit a lid to a pot,  i generally trim the galley of the pot to fit the lid.  Easier to center the pot than the upside down lid.



#7 JLowes

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Posted 16 July 2014 - 02:42 PM

I like to throw the lid off the hump upside down, or as a bowl shape if larger.  I roughly size it to the pot using calipers while throwing and cut the lid off and set it aside to firm some.  Then I either throw a ring of clay, or a hump of clay to hold the lid while trimming to fit and for shape.  I dry up the outside of the ring or hump with a heat gun, and set in the lid and trim.  I usually don't have any problem with the lid sticking. 

 

In a workshop with Fong Choo, he threw off the hump quite a bit, and would put Saran wrap on the hump so the hump could stay fresh, and still the lid wouldn't stick.  It works as well as my method, but I don't keep Saran wrap in my studio.

 

My favorite lid making is to close the vessel and use a pop sickle stick to depress the side where I want my lid and pot to separate.  When the depressions is just so, I dry up and firm up the area with the heat gun.  Then I carefully cut the bottom of the depression with the needle tool.  The top part is the lid, and will drop into the pot opening.  A little trimming of pot and lid makes it all fit up nicely, and get rids of any sloppy, wet, clay.  Here Bill Van Gilder demonstrates the method:

 

 

John



#8 Marcia Selsor

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Posted 16 July 2014 - 07:08 PM

I put them on a bat with a soft sponge supporting the center and trim.

Marcia



#9 clayfeetpottery

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Posted 17 July 2014 - 08:22 AM

John- Thanks for the video!  I'd like to try a few that way.  Anyone else notice his "rib" was a credit card?  Awsome!


-with dirty feet and happy hands,

 

   Mel

 





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