PMC Shrinkage

[Trish]

Where can I buy a Shrinkage ruler in the UK?:~:

[MuranoSilver]

Sorry Trish
Never heard of a shrinkage ruler ~ is it for a specific purpose? (eg. rings)
A few of the rolling mats that silverclay sell have measurements on
having said that I've always found shrinkage can be a bit randon depending how long and
how hot the piece is fired....

[Trish]

The ruler has the measurements for unfired PMC and the measurements for fired Pmc so you can calculate what size you need to make your piece allowing for shrinkage.
I know you can get one from Rio-Grande in the USA and mentioned in some metal clay books . but cant seem to trace one in the uk.
I did see instructions for making one online somewhere but it seemed a bit complicated .