Posted 17 April 2010 - 09:39 AM
Is this done by (very) accurate measurement,calculation or is there some trade method that has been used for many years?
Posted 17 April 2010 - 04:58 PM
Head of Ceramics, Central Washington University
CWU offers; BA, BFA, and MFA Degrees, (Post Baccalaureate also available). Images of CWU Ceramics studio can be seen at
Posted 18 April 2010 - 03:03 AM
As for elliptical work I think the previous procedure will work for 90,45 degrees etc., in other words even divisions but will not work for 5 or 7 divisions. For these a different method is needed. Measure the length and width of the ellipse and add them together and then divide by 2. This gives you an average diameter for the ellipse. Miltiply this figure by 3.142 (pi) which will give you the circumference of the ellipse.Divide this figure by the number of divisions you want say 5 or 7 which gives you the distance apart of the centres around the platter. Step this measurement off using dividers or a compass.
I hope this is not too confusing,
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