From: daniel watson Date: Tue, 31 May 2016 20:44:36 +0000 (-0700) Subject: choose drill bit to match arduino X-Git-Url: http://challenge-bot.com/repos/?p=challenge-bot;a=commitdiff_plain;h=8923a50f4be8b08a57995352f6ad5209990c49d0 choose drill bit to match arduino --- diff --git a/curriculum/challenge-bot.scm b/curriculum/challenge-bot.scm index 2284e0e..933c0fa 100644 --- a/curriculum/challenge-bot.scm +++ b/curriculum/challenge-bot.scm @@ -31,8 +31,12 @@ this means the hole needs to be big enough for the screw body to fit through. we want the screw to stay put once it's in place. - the threads of the screw will grip the edges of the - hole it's going through.]) + we also want the drill bit to be smaller than the + diameter of the thread. + the screw was chosen so that the hole on the arduino + was bigger than the body and smaller than the thread. + we will choose the biggest drill bit that fits through + the hole on the arduino.]) (p [here's a diagram of a screw] (figure :legend "screw" (image :file "arduino-to-deck/screw.png")))) (subsubsection