I have designed a simple case for the chameleon (very similar to the original main board cases) but for the CNC Shield v4. I haven't printed it yet, so the tolerances may not be perfect, so expect some minor tweaks in the future.
Find it here: https://www.tinkercad.com/things/4oPYPOfYFIA-3dchamelon-cnc-shield-v4-case
Liam