In the final stages of refurbishing the downstairs bog (yup, it's been on the go for ages!) and I want to fit an undersink cabinet. The sink in question is not too large (but then neither is the room) and I want to use it rather than change for a purpose built vanity unit for a variety of good reasons, so I thought I might buy a 600mm kitchen base cabinet and modify it (to make it shallower) to form the carcass, using something yet to be decided as the worktop that sits each side of the sink. Cutting the right shape of (horizontal) curve would allow the sink to sit partly embedded in the worktop as there's a flat 'lip' around the edge of the sink. Now, I'd rather make the cabinet more shallow than the sink IFYSWIM, so I'll also need a vertical curve in the top part of the cabinet (was thinking a matching door and drawer front here, with the curve cut in the drawer front). Obviously I shall have to think about how to make up for the bracing that I'll cut through in doing this, but that shouldn't be too tricky. The tricky part is working out how to cut the curves. Although I haven't measured properly they look more like arcs from ovals than arcs from circles so it looks like the thing to do will be to make some kind of template to match, then follow this with a router, but how do I make the template? Perhaps a big piece of stiffish paper carefully creased and ripped until it sits against the shape properly, a bit of trial and error cutting MDF templates from that until they make the right fit? The horizontal curve can be a bit scruffy, as the lip of the sink will cover most of it, but the vertical one will be on view, so I'd like to get it right, at least within the margin of a neat silicone bead.
Somehow, I have a feeling that there's a proper way to do it, and someone here might know what that is......