How to create a frame for a semi-circular window???

[daza]

Hi,

I was wondering if somebody could tell me how to create a frame to hold glass in a semi-circular space above my front door. I was looking for some kind of flexible quadrant/beading to hold the glass. The glass will rest on the top of the frame of the door so it's just the semi-circular part that needs to be held in some way.

I did ask a glazier but he just took a sharp intake of breath and told me to find a carpenter. Surely there's a 'simple' way to hold the glass in place???

Any ideas gratefully accepted.

cheers

Darren

 

[big-all]

do you mean the beading or the actual full frame!!!!

 

[daza]

I guess the frame. Since I posted this I've been looking at the houses in streets around ours who have the porch closed in and they seem to have a 1" wooden frame but I don't know how I'm going to do that! I want to avoid (London) chippie rates and stupidly assumed that I'd be able to get some kind of flexible 'frame' but can't find such a thing. Perhaps it's a gap in the market!

Anyway, still looking for suggestions...

cheers

Darren

 

[JohnD]

search on "fanlight"

I thought they were made up in sections. Needs a good joiner.

 

[big-all]

search on "fanlight"

I thought they were made up in sections. Needs a good joiner.

yep john has got it spot on usualy your frame will be 43mm by around 70

so you take wood from a wood yard that will be 21mm x95[4x1 par/planed]
imagine an octigone with another octigone on top rotated 1/2 a segment
you glue the 2 halfs together overlapping the segments you then round off the top and bottom using a band saw /jigsaw/ router and template

 

[daza]

Thanks for the helpful advice! I shall get myself down to the timberyard pronto before the rain starts!

Darren

 

[JohnD]

or a spoke shave and a LOT of time

 

[big-all]

the actual size of the timber will depend on the radius
draw your profile on a bit of white painted board [a rod]
draw the top and bottom radius divide the arc into equal segments using the centre pivot for the angle draw a line between the bottom most edge of 2 segment lines on the point the lines intersect the arc
measure midway to the top of the arch allow at least 5mm extra for sanding /mistakes and thats the minimum size of your timber

 

[daza]

Brilliant! There's my Saturday sorted out. Again, thanks for the help and hopefully this will be useful to somebody else in the future. What a nice bunch of people you are.

Darren

 

[big-all]

Brilliant! There's my Saturday sorted out. Again, thanks for the help and hopefully this will be useful to somebody else in the future. What a nice bunch of people you are.

Darren

thats why most of us give the advice to be helpfull and because the odd "thank you" is a great reward