The exposure cone, mentioned in Chapter 5, is used to hold the exposure frame containing the circuit board/artwork sandwich in order to expose the resist layer. In this chapter, we’ll discuss plans for construction of an exposure cone.
Just a few notes before we get to the details:
The cone shown below includes a light switch to control the bulb. This switch must be able to handle a minimum of 300 watts of AC power. If you are not sure how to wire the bulb and switch—don’t! Find someone who can. Remember, electricity can and does kill. If you feel you don’t have the skills necessary to build this cone, ...