To start with Industrial Foregoing you need to collect latex using a Tree Fluid Extractor and placing it in front of a log, then use a Latex Processing Unit with some water and power (RF provided with the Pitiful Fuel Generator for example) to make tiny piles of rubber.
You can also find useful information about all of the machines using the in game manual.
Join my discord: https://discord.gg/4tPfwjn
Textures by CyanideX and the Unity team: https://mods.curse.com/texture-packs/minecraft/222097-unity
My Patreon: https://www.patreon.com/buuz135
Maven: (Currently Broken) http://dyonovan.com/maven2/com/buuz135/industrial/IndustrialForegoing/industrialforegoing/
Crafttweaker Support: http://crafttweaker.readthedocs.io/en/latest/#Mods/Industrial_Foregoing/IndustrialForegoing/