[GregTech-5][1.7.10-FORGE-1355+][Unofficial but approved Port][Stable] Even GT5 Experimental is slowly getting stable.

On fission: it's my understanding that this is unchanged and just IC2 nuclear power. The biggest recent change I can think of is the fluid mode that increases EU output per heat unit by (I think) 50%. It costs more and is more realistic but is worth it for a long term setup. GT adds the Large Heat Exchanger (LHE) which is a titanium multiblock that gives you a ton of steam for the heat units and is the best way to get EU out of your radioactive materials.

There's been a lot of changes over time to this so whatever you find make sure it says it's for the experimental branch if IC2 (which has been where new releases have been coming out of).

http://wiki.industrial-craft.net/index.php?title=Nuclear_Reactor

I assume you mean the mechanics and design methodology for placing the components in the reactor. You can try an existing design you can find on youtube ir something but imo it's best to understand all of the components and experiment in creative mode.

Quote from willis936

On fission: it's my understanding that this is unchanged and just IC2 nuclear power. The biggest recent change I can think of is the fluid mode that increases EU output per heat unit by (I think) 50%. It costs more and is more realistic but is worth it for a long term setup. GT adds the Large Heat Exchanger (LHE) which is a titanium multiblock that gives you a ton of steam for the heat units and is the best way to get EU out of your radioactive materials.

There's been a lot of changes over time to this so whatever you find make sure it says it's for the experimental branch if IC2 (which has been where new releases have been coming out of).

http://wiki.industrial-craft.net/index.php?title=Nuclear_Reactor

I assume you mean the mechanics and design methodology for placing the components in the reactor. You can try an existing design you can find on youtube ir something but imo it's best to understand all of the components and experiment in creative mode.

Actually, GT 5.09.17 made some tweaks to the outputs of fuel rods and hot coolant, and I haven't updated my planner to account for that. I haven't really looked into those changes much myself.

Quote from willis936

http://wiki.industrial-craft.net/index.php?title=Nuclear_Reactor

I assume you mean the mechanics and design methodology for placing the components in the reactor.

I do.

I read through that page, and there's more information than I've seen elsewhere, but it's obviously incomplete. There's no mention of moving the heat to any other block. It mentions "heating mode" but says nothing about what that means. It says "HEATING MODE being dependent on surrounding the reactor proper with other certain blocks" but only talks about reactor cores and reactor chambers, no mention of the names of the "certain other blocks."

Obviously the Large Heat Exchanger has to get hot coolant cells out of the reactor somehow, but that page makes clear the placement of coolant cells within the reactor's internal grid matters, so I can't see how you move hot cells out and cold cells in automatically.

EDIT: OK, I found the "Fluid Reactor" page in the same wiki. That covers the alternate reactor form, which is a proper multiblock, and I gather is primarily about generating heat for use in a Large Heat Exchanger. I haven't really studied the page fully yet.

EDIT 2: That page is using some terms in ways that don't make sense to me. It talks about using heat vents extensively, but it also says the heat vents are useless because the heat is "applied to the core reactor instead of the air" and that you can't use that heat. It also says the "core temperature can't be cooled," which implies any heat vent will eventually cause a melt-down, since all heat vents and Reactor Heat Vents "dissipate heat," but "heat dissipation" no longer means heat dissipation, it means moving heat to the core where it cannot be removed.

As written, it appears you never want to use anything but heat exchangers or advanced heat exchangers. Those don't move heat to the reactor core, they move it to the casing, where it can be used by coolant.

Also, if I read it correctly, a Fluid Reactor can only generate steam, either via IC2 Heat Exchanger / Steam Generator pairs, or a Gregtech Large Heat Exchanger. In either case you absolutely need a Large Turbine, since both steam options demand distilled water, and large turbines are the only way to generate EU while recovering the distilled water.

As an intermediate step you can use IC2 liquid heat exhangers and stirling generators to get the benefits of fluid mode without having to make a large scale setup.

edit: It'd be helpful if I read posts before posting. :p

so after three literal hours of running around in an extreme hills biome, I didnt find a tin vein. I was tired of walking up mountians so I went into creative mode and flew around to try to find one, but still no luck. so im going to cheat in the ores. how many of each ore are in the average tin vein? who am I kidding, you guys have probobly never seen one either.

I've discovered 3 cassiterite veins so far. As I discussed at some length a few pages back, what you want to do is dig vertical exploration shafts every 3 chunks. (I personally do spiral stairs rather than literal vertical shafts.) Because Gregtech veins are wide, thin rectangles, you'll almost always hit a vein digging vertically, and almost never hit one digging horizontally. While in theory you can spot exposed veins just by walking around in the mountains, my experience has been you'll miss 90% of the ores that way. Really the only exposed veins I've seen are magnetite and coal, and those are incredibly common.

As for "how much" the answer is a lot. Probably in the 1000 range. That's the way Gregtech veins are, they're a pain to find (except for the really common ones), but once you do, there's a ton of stuff to take back.

Dig for your tin, its too hard to see otherwise. The only thing you need to be in extreme hills for is tetrahedtrite/stibnite. You might find tin or gold or bauxite while you're there, but you're there for tetrahedrite.

There's that, too. While tin can spawn up to level 120, and thus it's possible to see it as a surface deposit in Extreme Hills, the minimum height is 40. It can spawn anywhere but under oceans, really. Extreme Hills are only really required for Tetrahedrite, since that's the only vein with a minimum height above 60.

Looking over the vein table, I realized that the high maximum height for tin rather screws generation. It has a moderate weight (50) which means it get selected often enough. It's just that if the ground height is 65-70, there's a 65% chance the RNG will choose a starting point that's air. Which is why the lithium salt veins, which also have a weight of 50, but a height range of 50-60, are much more common.

So, apparently if you have a blast furnace with multiple fluid input hatches, that can prevent it from recognizing a valid recipe. I put together a blast furnace with oxygen and titanium tetrachloride input hatches and added magnesium. It wouldn't process. I removed the oxygen hatch, and it started right up making hot titanium ingots.

On the other hand, the blast furnace has no problem with extraneous materials in an input hatch. For example, if I've got calcite in there for smelting brown limonite, and the brown limonite runs out, it'll smelt the aluminum dust that's also in there.

what tool am I supposed to break fluid pipes with? I made small bronze fluid pipes and they dont break with a wrench, like it says to. does the material of the wrench matter? my wrench is made of lead.

Quote from tebruuls

what tool am I supposed to break fluid pipes with? I made small bronze fluid pipes and they dont break with a wrench, like it says to. does the material of the wrench matter? my wrench is made of lead.

The material could easily matter. I've never tried breaking pipes with a lead wrench, but I notice that such a wrench only has mining level 1, and bronze is a level 2 material.

I've never tested this, either. I've always had level-2 or better wrenches - my first wrench was bronze.

One possibility it's that it's the wrong wrench. IC2 wrenches have a crafting recipe that's almost identical to Gregtech wrenches, and they look similar. The Gregtech wrench is the one with the recipe that involves a hammer. Remove the hammer and you get an IC2 wrench. IC2 wrenches will not break Gregtech machinery such as pipes.

Also, as long as I'm on the subject - wires require a wire cutter to break. That tripped me up when I first started playing, I thought they'd break with a wrench, like other Gregtech things.

Other mods may require a pickaxe or drill to break items. For example, if you break a Forestry machine with your hands, you destroy it instead of picking it up. That one got me too.

Quote from Gus_Smedstad

One possibility it's that it's the wrong wrench. IC2 wrenches have a crafting recipe that's almost identical to Gregtech wrenches, and they look similar. The Gregtech wrench is the one with the recipe that involves a hammer. Remove the hammer and you get an IC2 wrench. IC2 wrenches will not break Gregtech machinery such as pipes.

That possibility is unlikely, since the IC2 wrench can only be made from bronze. A Forestry wrench also requires bronze, though fewer ingots and in a slightly different pattern (at least with IC2 installed; FTB wiki shows it having the same recipe as the IC2 wrench, so perhaps it normally uses 6, but changes the recipe if it detects IC2). Buildcraft wrenches are made from iron ingots and a stone gear. AE2 wrenches are made from certus quartz or nether quartz.

Looking on the FTB Wiki, I see a few other wrenches: A Charset wrench requires iron ingots and a stick; An Enhanced Portals 3 wrench is made from iron ingots and a piece of nether quartz; Extra Utilities 2: iron ingots, redstone, and some form of red dye.

As far as I can find, GregTech is the only mod that actually allows crafting a wrench with lead ingots.

Good point. I didn't bother to research whether it was possible to build an IC2 wrench from lead before posting.

When you think about it, a lead wrench is pretty silly. Lead's a very soft metal unless you alloy it with antimony. When I was a kid I had a setup for casting lead soldiers, and you could bend the pure lead versions with your fingers. As I said, you could fix that by adding antimony - but that also made it much harder to melt them down again if there was a flaw in the casting.

You think a lead wrench is silly? GT5 allows you to craft a lead pickaxe. It might require a tungstensteel rod as the shaft, but I don't see the logic of how that would help.

I imagine that you'd end up battering rocks with a tungsten steel club coated with a layer of lead.

How to use auto maintenance hatch?

I've replaced steam turbine's maintenanced hatch with auto one, but it doesn't work. Put a stack of lubricant cells, steel screws, duct tapes and adv circuits.

Anyone can explane me how to use auto maintenance hatch?

Using GT 5.09.29 pre3, IC2 exp 2.2.827.

I did a little messing around in Creative mode with the nuclear reactor.

Connecting wires to a reactor in EU mode is impossible, because there's no way to craft Industrialcraft wiring, and Gregtech wires won't connect. However, a batbox directly adjacent to an operating reactor does receive power, and that can be transformed to Gregtech power via a transformer.

The Wiki page for the Fluid Reactor is misleading. I read it to mean heat vents didn't work in fluid reactors, and they do. The absolute basic one-rod, one-heat-vent reactor produces 8 HU/t, as expected, and core temperature does not rise. Coolant can absorb heat from vents, not just the casing. Interestingly enough, the tooltip for heat vents says "cannot be used in fluid reactors," even though they work.

I wasn't sure you can automatically refuel fluid reactors. You can. It turns out that the Access Hatch can connect to item pipes. Which means you can refill a reactor with fuel rods automatically. I tested it with reactor plating since that's inert.

Automatically removing spent rods can't be done with Gregtech. It requires a mod that has filters at the item pipe level, like Thermal Foundation. Without a filter, the item pipe removes everything.

The thermal monitor from Nuclear Control 2 can be attached to an reactor access hatch, and it will read the reactor temperature, and emit redstone if it's above the target level. Setting up an automatic thermal shutoff should be easy enough.