Cutting a fan radius

[Mickyc2007]

I'm looking for a bit of advice on cutting a fan radius,
I have four to do in total on a 1200mm wide footpath using tegula blocks (very time consuming I know) I finished the first one on Saturday morning but for the next one I have no point of origin for my radial line due to the house being in the way!
Is there any other way It can be done?
Thanks in advance

[Tony McC]

There are some examples using flagstones shown here and there's also a page dealing with obstructed origins which can be found here but very often, a site specific solution is required which may involve using elements of the techniques shown on those pages along with a little bit of magic which I haven't yet had time to write up.

For a 1200mm radius using blocks, the set-up is so small, relatively speaking, that I'd be tempted to mock it up out of position, cut all the pieces, then re-assemble in-situ.

[Mickyc2007]

Thanks for the quick reply, very much appreciated. I took one look at the page on obstructed origins, then asked the site engineer to do it instead lol, I'm normally very independent within my work but I've got the gaffer breathing down my neck to get it finished and I still have 3 more of these to do! Thankfully only one of them is obstructed. It's just a shame it's a Taylor wimpey showhome, it will all be ripped back up in a couple of years time to make wAy for bog standard flags:(
But again thanks for the info and I'll be sure to give it ago when I've got a bit less pressure on me!
Cheers

[Tony McC]

Send some photies showing how you get on