New mechanical power uses:
Automated panning
Ore pulverization by helve hammer or pulverizer
Automated smithing via use of various tier manually smithed and expensive forging dies.
Powered mixers for mass producing identical food recipes, healing items, glue, magic, or explosives
Drifter macerator
Firewood splitting
Powered saw, could be a vintage power hacksaw or a circular saw
Powered chisel for cheap mass production of stone bricks, can also split wood
Powered loom
Powering blower for forging, forge with blower heats up material faster
Juice press
Pottery wheel
Lathe, an absolutely necessary machine for more advanced machinery and items which mods will certainly add. Absolutely required for many items such as axles, gun barrels, hinges, gears, even furniture items, clocks. Does not need to be an engine lathe that cuts metric and imperial threads in advanced alloys.
Rock drill, necessary for boring holes deep in rock so they can be filled with blasting powder for more efficient mining.
Grinding wheel, necessary to work iron and steel without forging. Turns forged blank tool heads into sharp mountable ones.
Many might be redundant in current gameplay as much crafting is done instantly in minecraft style.
Mechanical power will kill the player and entities should they walk into moving parts.
New mechanical power blocks
2x2 gears that introduce 1:2.5 ratios
Spur gears, large, medium, and small for more compact vertical power transfer without need of angle gears.
Bronze pulley and leather belt pulleyboxes, get >3 speeds to select in a single 1x1x3 multiblock structure that enables hiding mechanical drives behind a wall. Features a clutch to disengage power to then change pulley ratio without any tools.
Dog clutch, 1x1x1 version of transmission & clutch that handles more power.