I was editing There's an alternate recipe using an energy pipe? was not playing now, the server is dumping like every 30 seconds.
You can just use an energy pipe to make the cobble gen. When you get decomposer and sythesizer and planned ahead for obsidian you can create whatever you need
Simple solution. Change crusher core to require a desh ingot. By the time you get to mars, you already will have a full function obsidian farm going (I did). but PLEASE don't disable the crusher making sand... A good-looking moon base requires a TON of glass, and killing something that is mainly aesthetic... Well, look at my gallery, you will see what I mean. If you must reduce or cut off, then just lower the amount of silicon oxide to make/recieve from sand and glass to only 1 each. Prevent SiO2 gravel overload while still preserving the aesthetics. Although I would prefer the desh route, since all the recipes affected by sand and glass would have to be messed with as well. (that may be automatic)
desh ingots will be required, most likely, although i don't think caith is able to work on the packs as we thought he left them awhile ago, so who knows *shrug*