Penholder for CNC milling mount (Kress/AMB 1050 spindle)

thingiverse

I designed this device to utilize a pen on my MPCNC in the exact position where I use my tools, allowing me to create marks directly on the table. To achieve perfect alignment, simply remove the spindle and install the pen holder, which will replicate the centered position of your tool. For this project, I employed an Edging pen with an 11mm diameter as the writing instrument. Since I encountered issues with the smaller diameter version not securely holding the pen in my 3D printed tool mount, I created two additional versions: one with an outer diameter of 43mm and another with a diameter of 44mm. This way, you can choose the correct size based on your specific requirements.