Here is the first part of my how to on using Aluminum foil to make your rock work. Rock Molds Part 1: [video=youtube_share;ob8FDg4pctY]http://youtu.be/ob8FDg4pctY[/video]
Two questions- That little painters spatula, did you buy it from art supply type store? It looks like something for my shopping list. Also, what is the largest size mold you have found to work, without it becoming too awkward?
Boxcab I bought it at the dollar store in their art and craft section. But art stores will have them. As for the molds my biggest was about 8 by 8 inches as you have to wait for the plaster to set a little harder to place it on terrain. Without it flooring or bending on you when you handle it. I find it not awkward but the larger the mold over uneven terrain the more cracking you will have to fill in later as the plaster tends to fracture when contouring to your terrain. I find using smaller molds overlapping them slightly works a lot better with less fill work. Just remember to start your overlapping molds from top to bottom as mother nature does not have to many overhangs in mountains that you would get from placing molds bottom to top. However, I did the odd overhang for interest. Hope this helps.
Here is the second instalment in the rock mold series for you guys. Hope you find it helpful, useful, and informative. Rock Molds Part 2: [video=youtube;fIALbWBHHBc]https://www.youtube.com/watch?v=fIALbWBHHBc&feature=youtu.be[/video]
I saw an article once where someone used tinfoil and a cookie sheet pan to make rock walls he put wire in the plaster for strength.
No larger then 8 by 8 inches. I find that it's not awkward but it starts to crack when you lay it over uneven terrain. Other then that great method of rock work.
Long videos but they were informative. About 20 years ago I uses to use foil as a tool in my rockwork but it never turned out as good as this.