File last updated 11-21-21 Printer: Ender 3 Pro $230 https://creality3d.shop/collections/3d-printer/products/creality3d-ender-3-pro-high-precision-3d-printer Ender Extender Kit $169 https://enderextender.com/collections/ender-3/products/ender-extender-400-for-ender-3-non-pro Notes: Purchasing a larger printer with a bed size of at least 400mm x 400mm will remove the need for the Ender Extender Kit. Filament: 1.75mm diameter PLA filament (other types can be used, but PLA tends to be the cheapest and easiest to use). 1kg spool averages $15 https://www.amazon.com/gp/product/B09638VFRS/ Notes: This is the plastic that the printer prints with. Cost of printing is highly dependant on this price. Print time per stencil is approximately 2 hours each. Each print costs about $1 of PLA per stencil plus an unknown cost to electricity. On most days I'm working from home so I'd expect to average 5 stencils per day. Fewer on the weekends due to other activism requirements.