Board Thread:Questions and Answers/@comment-172.6.144.188-20130124231933/@comment-4758610-20130125031634

Use a BuildCraft distribution pipe. Yes, you'll have to use the stupid BuildCraft pipes, but at least it works. You'll have to use 2 seperate pipelines though, one for each material. A Diamond Pipe would work well for that. You'd set the settings on each distribution pipe to make the amount you need for your crafting to one output, and the rest goes somewhere else.

Hope I helped.