I use a modified Ikea Tertial Work Lamp as a webcam mount. So I designed this cap to fit atop the main post of my VIVO dual monitor desk mount.

This design should work for any monitor mount and lamp that are similar. Install OpenSCAD and modify the following parameters to match the measurements of your monitor stand and arm:

• lamp_peg_diameter: diameter of the lamp's mounting peg.
• lamp_peg_depth: depth/height of the lamp's mounting peg.
• monitor_column_d: diameter of the monitor mount's column.
• monitor_column_h: the height/depth of the monitor mount's column that the cap fits over.