How do you miter the corners of ceiling cornice thanks, is there a trick.?
Question:not very good at miters Ive heard there is a trick you can use, if you have an answer can you give a slight drawing to explain how, many thanks.
Answers:
go to the gyproc site and you can download a template numbered 1 to 4 for different angles i.e internal or external , left or right , if you use an ordinary mitre box it wont work as the cornice is set against the wall and ceiling at an angle .
once at gyproc site you just have to choose what cornice or coving , size wise your using, print it off and cut out the paper template , if your doing lots of rooms you can buy a purpose made tool called a cornice mate which is a shaped piece of metal which fits all cornice and cove .
yes there is a trick. go to www.diytv.com
You actually have to do what is called a compound miter, which means you are cutting two angles at once. Or you have to use a coping saw. Here's a good site to check out, http://www.dewalt.com/us/articles/articl...
It is of course geared toward their saws, but the angles are the same for any saw. You might want to consider cheating and use corner blocks, much, much easier.
you need a mitre block, a little piece of wood with 45° and 90° angle cut in it to guide you, you can get one at any reasonable D I Y shop
http://www.magicmitre.co.uk/uk/top-tips/...
http://www.wsh.freeuk.com/how_to_fix_cov...
Using a mitre cutting block and cutting tool helps.It works well providing the corners are square(90%) but if the walls are a bit out it can take a bit of compromise over your cutting angles and a bit of filling as well.You can buy preformed corners both inwards and outwards which take some of the cutting problems away.
Using a mitre block, lay the cornice or coving on the ceiling face (i.e. upside down) and do a vertical 45° cut, to left or right depending whether mitre is external or internal. This is not a compound mitre as some one has suggested! Take care when transferring measurements.
When I installed trim, I found that the only way to make this cut was upside down and backwards. What I did was to cut the left angle then lop it off and mark it with an L. Then I cut the right angle, lop it off and mark it with an R. I never could remember that junk. Put trim up for years and I never could remember.
The most important trick is that corners are not 90 degrees. They are usually more because there is mud or plaster build up. I always, always cut my angles at about 47 degrees. This seems to be a good happy medium.
God Bless
The trick is called coping. You install one piece corner to corner with square cuts. You then cope the joining piece to fit up to the profile of the first piece. Here is a explaination of the job: http://www.altereagle.com/3_how_to_insta...
In a square room of the 4 walls you'd have on piece square on both ends, two pieces with one end coped with one end square cut and finally one piece coped on both ends.
Cut the all pieces a little long and bow them into place so you have tight fits. Easy to trim a little off, hard to stretch a board a little short...:)
Good Luck
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