Coring apples for dehydrator (Nesco. American harvest. Etc)

I am not a food dehydrator guru or even very experienced at it. This just happens to be one thing I learned while making what is so far my favorite thing to dehydrate. Apples.
I went apple picking as an activity and ended up with a crap-ton of apples. Even after giving half away. Next day I found a NIB nesco dehydrator at a garage sale for $5.
Tip: if you buy apples get cheap bags of Macintosh. I find them to be my favorites. Sweet but tart enough. Red delicious are good too but less tart/more sweet.
I add nothing. Soak nothing. Just cut and dry them.
Pears: I did not like dried pear chips at all.