C270 Mutli-Section Mount, Swing Arm (Ender 3 v2) - Print-in-Place Hinges by 6ROM7

Last crawled date: 3 years, 1 month ago

CAVEAT EMPTOR: This file is a bit complex, using functional print-in-place hinges. Through several rounds, I tuned the hinges to have enough clearance that they print without fusing but not so much clearance that they are loose. I included a second "bigger clearances" swing arm in case you have trouble with the standard.
Please print the sectional test hinges first to make sure your printer is compatible with the functional design and to determine which works best for you. I've included two tests: a baseline hinge (0.25mm clearances) and "bigger clearances" hinge (0.40mm) that correspond to the two swing arm files.
I had trouble finding the perfect mount for my Logitech C270 webcam that I use with Octoprint on my Ender 3v2. Johnmak's version (https://www.thingiverse.com/thing:2635798) is good, but I found the bolts loosening a bit over time, the mount to the gantry plate a bit wobbly, and the camera just a tad too low to get the angle I wanted. New to Fusion and wanting to learn more about print-in-place hinges, I decided to model my own design from scratch, borrowing the overall arm concept from Johnmak and the gantry mount from NeoExacun (https://www.thingiverse.com/thing:3065024).
MODIFICATIONS:

Uses print-in-place functional hinges. In other words, this prints as a single object, relying on carefully defined clearances to allow movement at the joints. No hardware required.


Adjusts gantry mount geometry slightly for a better fit, especially with the friction-fit tabs/rails. This now "snaps" onto my machine perfectly, but is still removable (carefully) without some force and patience.


Raises the camera about 14-15mm by (a) moving the swing arm to be level with the top of the gantry mount, rather than in its vertical center and (b) moving the camera screw mount to the top of the swing arm. These small changes made a big difference for the viewing angle. The nozzle is still generally visible, but I can get a better perspective on the overall print/bed.

Adds cable management clips. The cable now runs to the bottom of the gantry. I pulled it under the gantry plate and then through my cables chains to keep everything organized.
For the manual focus mod, I used drzejkopf's files (https://www.thingiverse.com/thing:3750229)
IMPORTANT PRINTING NOTES:

The print is too long to be printed horizontally/vertically on an Ender 3v2. I printed it at a 45 degree rotation (on the hypotenuse, so to speak).


It should be printed with the swing arm's back flat against the bed.


See picture for print orientation in Cura

Slow down printing to ~50 mm/s to ensure more accuracy around the joints