Clean mesh3d 2 (#1618)
Clean mesh3d 2 (#1618)

* seems overkill

* not too extreme

* make linter happy

* try adding accel scale

* some tweaks

* Revert "some tweaks"

This reverts commit 58cec365da650fa653dee91c7a5cbe37b8289908.

* Revert "Revert "some tweaks""

This reverts commit 517108b5b676b4ab31bba92a9eb59afa1b3d3faf.

* stability concerns

* this works

* still works

* ugh sympy is weird, still may be not correct

* comment clean

* comment

* clarify

* fix

* unused
commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot