Thread: Nice clean cut in cornice???

It's pretty hard to get a clean cut edge on that stuff. In fact I'd stick my neck out and say it can't be done. You're faced with two alternatives:

1. Hack it away, put in your bit of false flue, and plaster up to it.
2. Hack it away, put in your bit of false flue, and scribe a trim around it.

I'd go for option 2 because I reckon the join will open up over time.

Unless someone has a magic way of cutting horsehair plaster.

How about trying a 4" angle grinder with a masonary cutting disk in it. As there are no teeth to catch in the fibres it should just burn through them.

You could try it in the centre of the area first to see if it would work.

yup - angle grinder or dremel - alternately, would it be easier and more do-able to cut the metal cowl?

Thanks for the responses, may try the dangle grinder and a bit of trim later.
The dremel is too small for such a large cornice, I had tried that before but thanks anyway.
Oh well, more white dust tomorrow, SWMBO will be pleased, a chance to try her new vacuum cleaner
Metal cowl is not an option, my metalworking skills are far from brilliant.

There is an angle grinder blade that they use on stainless steel that is half the thickness of a normal blade. I use these to slice through odd jobs that they are not designed for without burning with relative ease.
Jack

dont use the vacuum too much on the plaster dust, it absorbs the moisture and clogs up the workings and rusts everything,
A lesson we learnt on our new vac!!!

we use the old one for the renovations and the new one for the house (needless to say the new one is hardly used!)


GAz

witt is the lowest form of humour, (that dont sound right!)

Sarcasm is the lowest form of wit?
Thanks for the advice on the vac, she uses a brush and pan for such jobs.
Great working arrangement, I mess up, SWMBO cleans up............coming dear