Describe the bug
Generator and furnaces should be able to filter input instead of importing things which they can't process.

Steps to Reproduce
Steps to reproduce the behavior:

• Create a generator with an input from a chest
• Load or into chest
• Generator pulls in ore but can't process it

Environment (please complete the following information with the version):

• Minecraft: 1.6
• Mod Loader: fabric

Yes, this is true. The reason this doesnt happen right now is that these machines dont use the same recipe system as the other machines. Id like to redo the whole filter inputs thing at someopint to allow you to specify items.

It all comes down to priorities, and you probably have something more than this hobby to occupy your time :-)

If I get to make a wish, I think that the problem with cables should have a higher priority than this.