ServerEvents.recipes(event => {
    // propeller / fan requires quartz
    event.replaceInput(
        {output:'create:propeller'},
        'create:andesite_alloy',
        'minecraft:quartz'
    );
    
    // harvester requires electron tube 
    event.remove({output:'create:mechanical_harvester'});
    event.shaped(
        'create:mechanical_harvester',
        [
            'ABA',
            'ABA',
            'CDC'
        ],
        {
            A: 'create:andesite_alloy',
            B: 'create:iron_sheet',
            C: 'create:electron_tube',
            D: 'create:andesite_casing',
        }
    );
    
    // saw and drill requires mechanical crafting
    event.remove({output: 'create:mechanical_saw'});
    event.recipes.create.mechanical_crafting(
        'create:mechanical_saw',
        [
            'AAA',
            'ABA',
            ' C ',
        ],
        {
            A: 'create:iron_sheet',
            B: 'minecraft:iron_ingot',
            C: 'create:andesite_casing',
        }
    );
    
    event.remove({output: 'create:mechanical_drill'});
    event.recipes.create.mechanical_crafting(
        'create:mechanical_drill',
        [
            ' A ',
            'ABA',
            ' C ',
        ],
        {
            A: 'create:andesite_alloy',
            B: 'minecraft:iron_ingot',
            C: 'create:andesite_casing',
        }
    );
});