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Working back - mines cap the input

TinyPirate · Aug 16, 2026

This issue could be a me problem, hence I've not put it in as a bug. Sometimes I work forwards from one input and then back from another. Eg, I work from 600 oil to a lot of rocket fuel, and then I work back down the requirements until I'm inputting raw coal, sulfur, etc. I've found that when I drag the raw coal to a source it defaults to a level one mine and suddenly caps at, like, 60, and then all the maths in the factory plan changes. Updating the mine doesn't seem to push the numbers back up. I have to delete the mine and instead I just put in a "from another source" source so I can see the number still. It would be better if when you drag to an input (mines, etc) the input matches the need, just upping the mine number - and then modifying it dynamcially based on adjustments I make (open the mine, push it to pure, mk 2, 250% etc etc). Let me know if you want a better explanation.

2 comments

  • TinyPirate · Aug 20, 2026

    Got this problem in the link below. I had everything nicely laid out. Messed with my black powder line and suddenly the oil drops to 50 and I can't get it back to 600 no matter what I try. It throws off the whole factory. Hmm. https://pioneertoolbox.com/planner/s/_IEN0LrBeY-iB8PL9cRTwg

  • Xuqari maintainer · Sep 14, 2026

    Two halves to this. Retuning a mine is fixed: since v0.18.1, changing tier, purity or clock no longer rewrites a rate you typed. The default is not fixed, and that is what this item now tracks: drag a raw backwards and you still get a Mk.1 normal miner pinned at 60. Ticking Auto-size in its gear menu frees it, but I agree the default is wrong for the way you build. On your linked plan, the Crude Oil extractor is sitting at 405 a minute rather than 50, which is 0.68 of one pure extractor at 250 percent, so something is sizing it to 405 instead of holding your 600. Is Auto-size ticked on that extractor, and did you type the 600 into it or into something downstream? If Auto-size is on it follows whatever the line pulls rather than holding a number. If it is off and 600 still will not stick, that is a bug and I will chase it.

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