computercraft_build_modem

-- ------------------------------------ --
-- build core | crafty | modem | v1     --
-- builds a modem                       --
-- based on vertical array              --
-- ------------------------------------ --
stone,redstone,glass,iron=shell.run("recipe") -- modem recipe pastebin.com/HjaP1eYm
ingredients={stone,{nil},glass,iron}

-- resets the robot
shell.run("resetBuild") -- pastebin.com/jHBga2nu

-- weird exception. modem needs a torch crafted.
-- assumes robot is at top
shell.run("go down 2") --skip to redstone
    turtle.suck() --from redstone
    turtle.transferTo(11,1)
    turtle.drop()
shell.run("turn left 2") --does 180
    turtle.suck() --from sticks
    turtle.transferTo(15,1)
    turtle.drop()
    turtle.craft() --just made 1 torch
    turtle.transferTo(11) --torch goes to slot 11
shell.run("turn left 2") --does 180 back to normal
shell.run("go up 2") --back to start except with a torch in slot 11

-- runs through ingredients
for i=1,getn(ingredients) do
    turtle.down()
    if getn(ingredients[i])>0 then
        turtle.select(1)
        turtle.suck()
        for j=1,getn(ingredients[i]) do
            turtle.transferTo(ingredients[i][j],1)
        end
        turtle.drop()
    end
end

--actually creates the modem
turtle.craft()
--go to bottom level to dropoff product
while turtle.detectDown() do
    turtle.down()
end
turtle.drop()

-- check fuel levels
shell.run("refuelBuild") -- pastebin.com/n9KMVt9x