This is a further development of my own Small DIP IC Lead Bender v1.00 (https://www.thingiverse.com/thing:3120457) to accommodate longer chips like the ATMEGA328 etc. It works in exactly the same way. Insert the chip along the center support and pinch in the pins with the fingers on either side. I will be developing a version for wider chips in the near future.
Time: 1hr 30min
[UPDATE] Now uploaded, Large DIP IC Lead Bender v1.00: https://www.thingiverse.com/thing:3124978