Board Thread:Let's talk about the Wiki!/@comment-25205196-20170209192204/@comment-25205196-20170218130515

FlaDiver52 wrote: Most Machines already had two slots, with the exception of the Lobster Pool and Duck Salon which came with one each. To add additional slots in the machines, the progression to purchase with diamonds was: 3rd = 6 dia, 4th = 9 dia, 5th = 12 dia, 6th = 15 dia. 7th = 18 dia, 8th = 21 dia, and the 9th = 24 dia. The Lure Workbench and Net Maker were: 3rd = 10 dia, 4th = 20 dia, 5th = 45 dia, 6th = 90 dia, 7th = 130 dia, 8th = 260, 9th = 415 dia.

See, this formula doesn't work for the smelter, hence my question. :)