Normally you'd cut a full elliptical hole and not the flat spot on the back, then you don't need to drill the faucet holes.
programmed a sink cutout on a corian vanity top ,used the logitrace draw program and aspire to setup the cut
when smooth ,better than a jigsaw and no scratches to the corian top
It was not hard to align the cut on the top using aspire
Normally you'd cut a full elliptical hole and not the flat spot on the back, then you don't need to drill the faucet holes.
Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
You're right ,it wasn't required i normally just cut the hole but the top is small and 3 inch of corian to the sides so i thought the smaller the hole will leave lots of meat for rigidity.
And it wqas my first time with corian use so i was all ears and eyes
But it went well