3ds max automatically backs up scene files, I believe you can find those in C:\Program Files\Autodesk\3ds Max 20xx\autoback
It may also end up in your user dir, C:\Users<username\Autodesk\3ds Max 20xx\autoback
Having said that, 35 hours isn’t all that much and if you only left yourself a day to render you may have been SOL anyway, Round Up took me 22 days of rendering over 3-4 machines with something like 20 cores of compute power. Now my fancy new GTX 1080 could likely wipe the floor with all those machines combined but still, you should have been rendering scenes on an as completed basis.
IE, complete the scene, render it, work on the next while that’s on the burner. Recommend rendering on other machines that aren’t your workstation. Backburner can be a great resource for this.
Then again, I was doing a considerably higher end production.
The entries this year make me sad, I think my original animation entry, Tetra Triad could place 2nd this year.
I would love to have that!!! As far as having to take up a motor port, most people would probably plug a motor in there anyway to do the job of the pneumatics. Man, that would be really helpfull; i think i know what I’m going to vote for now