I've been playing with a fast and space-efficient scrap-producer for my flatland challenge and came up with the following in creative: Put down a recycler, hook it up with 3 sets of 4 overclockers. Put a crafty turtle on top of it with a script that turns cobble into cobble halfslabs. If you don't like turtles or can't program them, an autocrafting table with a wooden pipe and engines works as well. If you use the turtle, make sure the crafting program is set as the startup script so it will resume on logging in. Then surround the turtle or crafting table with Igneous Extruders on the remaining 5 sides and set the outputs so that they feed into the turtle/crafting table. Every 2 seconds, the extruders will produce 5 cobble, being crafted into 10 halfslabs which are turned into 1.25 scrap. The recycler doesn't run continously with that, but will clog up with less overclockers.
For scrapbox production, you could use the packager from Factorization and to "unpack" them, just feed them into either a deployer or dispenser hooked up to a timer/clock. Put a obsidian pipe or transposer in front of it and you can feed it directly into your sorting/processing system. The whole scrapproducer is 3x3x3 big and can be easily tiled for even more scrap. I'm not sure if it is energy efficient enough to produce excess power, but since the scrap boxes and their content were my main goal that's not a problem (for me )
Something I also found out in the process: If you can spare the iron but are low on redstone, turtles are an amazingly efficient way to make pretty flexible combinations of autocrafting tables, timers, relays and filters.
For scrapbox production, you could use the packager from Factorization and to "unpack" them, just feed them into either a deployer or dispenser hooked up to a timer/clock. Put a obsidian pipe or transposer in front of it and you can feed it directly into your sorting/processing system. The whole scrapproducer is 3x3x3 big and can be easily tiled for even more scrap. I'm not sure if it is energy efficient enough to produce excess power, but since the scrap boxes and their content were my main goal that's not a problem (for me )
Something I also found out in the process: If you can spare the iron but are low on redstone, turtles are an amazingly efficient way to make pretty flexible combinations of autocrafting tables, timers, relays and filters.