Recipe Tweaks (optional)

• 2x basic underground - 3 transport belts, 6 iron plates
• 2x fast underground - 2 basic undergrounds, 15 iron gears
• 2x express underground - 2 fast undergrounds, 30 iron gears, 60 lubricant
• 2x turbo underground - 2 express undergrounds, 15 tungsten plates, 60 lubricant

Stack Size (optional)

Underground belt stack size is doubled by default.

Configurable Length

For players who love long underground belts, the max length of every underground can be increased up to 30.
This would cover a full factorio chunk (32 tiles, if you include the underground belts + 30 tile gap)
There is no need to worry about carrying multiple items for each length of underground. Just build as long as needed.

Compatibility / Issues

• This mod is very experimental and may break in certain situations
• Works with hand placement, bot placement, space platforms, deconstruction planner, and upgrade planner
• If you run out of transport belts, it will not stop you from placing undergrounds. It is a trust-based system.
• Compatible with Space Age DLC
• Untested with quality. Best to avoid using quality underground belts.
• Does not currently support modded belts (maybe coming soon).
• Try not to use the upgrade planner on a belt-weave.