Hi,
I'm kinda new at making Create contraption but I've never seen anyone make this farm for Redstone, GlowStone and GunPowder. This farm does not need any materials to run. It makes Netherack from Clay and Crush it to Cinder Flour wich is then washed / haunted / smelted into each materials. This farm only works with the Addon "Chromatic Returns".
Hope you'll enjoy using it