Multi-Color Pen Holder with Automatic Pen Change

[Keith]

You might be able to adapt that tilted spool of pens to something like the links in this post:

Pen attachment for 1/2" spindle

So, I finally got around to trying the pen holder I bought. It does work, but as the pen tip gets mashed, it loses contact and the drawing becomes less reliable (I was drawing on a rough piece of old plywood). since it is in a horizontal position, the weight inside, intended to maintain contact, doesn’t function as it would in a conventional vertical spindle. Finding a way to put a spring it might work, but I am looking elsewhere at the moment. Since I switched to a c-channel z-axis, I don’…

As @TheMerryYeoman mentioned, putting the spring at the mounting point would solve any directional misalignment.