Sunday 25 October 2009

'knobs & all'

The 'offspring' tell me i should impart more "doing pottery stuff".So how about the other days 'Knobs & All' exercise ? (must stop putting 'quotation marks' to everything !..and exclamations!).Knobs & all was gleaned from an American potter who used the delightful expression to describe throwing a lidded pot in one go.Align Left
Throw a cylinder(in this case 12oz)with just enough thickness in the rim to close it up as if it were a bottle then seal it totally.The captured air should now give you enough resistance to push down and develop a 'dome'.By now the heat from my 1,500 watt lamps (quite unnecessary,but helps!)has expanded the air giving extra oomph! The trick now is to arm yourself with a wooden tool or any squared off piece of wood,in this case about 1/4 " and gently press into the pot (wet) where there will be a division of pot and lid.Keeping up?..Usual procedures now to leather hard(us veggies prefer 'Cheese hard') Don't forget to put a pin hole in the dome to let the pressure out or POP!

Turning...make a suitable chuck,pot in Topsy turvey and turn your base foot ring.When completed,flip the pot over(right way up ),trim and with a needle,cut through on the lower part of the indent until both lid & base separate.If you're a cleaver Bunny you will have a flat gallery on the base and a clever inset flange on the lid that with a bit of 'tweeking' should make a satisfying fit in the pot,'Knob's & all ' !!

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