Bruce Chandler said:
Those windows look great! I think you've mastered that technique.I guess you mix the cement VERY thick, so it doesn’t soak through to the mold itself? I like the effect - the stone wall look great.
The mortar is actually mixed pretty thin, about the consistency of pancake batter. You want it to pour easily and seep in between the stones a little, but not so thin that it gets under them.
As for the window frames, I wouldn’t say I’ve mastered that yet but I’m getting there. I never could keep them from sticking to the jig. What I ended up doing is, I had a couple small rectangles of glass (mirrors, actually) which I taped down to a large glass surface. These form an “L” shape, with a nice 90 degree corner. Then I build the frames in this corner. I’m just putting the muntins in by “eyeball”.
These first windows are pretty simple. Next I want to try some double-hung windows. I’d also like to try making some old fashioned windows that swing open like a double door, if I can find hinges small enough.