I wanted an easy to print and webcam holder that could mount securely to the ikea lack table, so I've remixed HippieHeadShot's design from thingiverse. I've included a mount piece that screws into the table by using m2.5 countersink wood screws.
The pieces print support free, in the orientation provided. I've printed them in PLA, with 3 perimeters and 15% gyroid infill. You will need:
To assamble the webcam arm, start by pushing an M4 nut in the bottom of the table mount, and make it flush with the piece.
Assamble the arm by using M4 x 20 screws and M4 nuts. After you've assambled them, screw the mount into the table, and use an M4 x 10 screw to connect the arm to the table mount.
For my camera mount I've used only 2 arms, but you can use more/less. I needed the following hardware for the mount I've used:
The author remixed this model.
I've improved on a couple of things. I've made one of the piece printable without supports, increased the webcam mount lenght to accomodate the ¼ screw head of the webcam mount, and created a separate piece that screws into the table with 2.5 x 24 mm wood screws, where we can mount with an M4 x 10 the webcam to the table (it has a pushed in M4 nut on the other side).
I also modified the holes from M5 hardware to M4 (the nuts and the bolts)