If you really want crackers, but cannot finesse a dehydrator at this time (i.e., you really really want the Excalibur and are not willing to settle for anything else, and are saving as hard as you possibly can, even foregoing Thai coconuts and avocados!), there is a *semi-raw* way to go.
Your stove’s lowest heat is 200 degrees (in the US — if you are not in the US, then just look at your stove and the lowest number on the oven control will be the same amount of heat– this is not rocket science). Set the oven at the lowest heat, and prepare your cracker dough. Line a cookie sheet with cooking parchment, and then spread your cracker dough out to the edges. Put the cookie sheet in the oven and turn off the oven. Wait about 1/2 hour then turn on the oven again. Wait about 20 minutes, then turn it off. Keep going like that until your crackers are dry on the top, then take them out, remove the parchment laden with semi-cooked crackers, put a new sheet of parchment on the cookie sheet, flip the crackers onto the lined cookie tin, then peel off the parchment.
Continue turning the oven off and on until the crackers are crispy. (You will need a day off when you are cleaning the kitchen, so you can keep turning the oven off and on)
Conversely, if you don’t care so much about raw, but just want some healthy crackers, set the oven at 200 degrees (or your lowest temperature, and bake the crackers. (you might want to flip them midway)
Maybe you just want to go ahead and get the Excalibur with the timer! I love mine (I went two months eating the cheapest food I could buy just so I could get it sooner).