Something Like a Pen Mechanism?

Hey all,

So I'm trying to come up with a mechanism that is similar to a clicking pen in that when you press the button something actuates. The product I'm designing is something that will be on the end of a walking stick or trekking pole and when the button is pressed against the ground while walking, an actuator pushes in the nozzle of a spray paint can which leaves a small paint mark on the ground.

Currently my system just uses a spring to hold the can 'in tension' and the force from placing the stick on the ground activates the nozzle. What I need though is something where the nozzle doesn't activate upon every button press, but instead is kind of staggered so that it activates only every 3rd, 4th, or 5th etc. press.

Is there any kind of mechanism that anybody knows about that I might be able to 3D print or manufacture somehow?

Any help would be greatly appreciated.

Great design resource

100 Things Every Designer Needs to Know About People (Voices That Matter) Submitted January 10, 2018 at 12:21PM by ZupaTr00pa http://ift.tt/2CXPllD