I wanted a way to make better use of the space in my toolbox so I created this combination wrench tool holder.  I left enough space between the wrenches to be able to get them out easily.  The wrenches are Challenger/Proto.

This is part one as this print used up the space of the Prusa MK4S bed.  A second model will continue the holder.  This is the SAE version.  I will be doing a Metric version as well.

Nothing special to note about the printer settings.  I used the default PLA settings for Prusement PLA @ .20 structural.  No bridges or brims needed.

I do not have an MMU so I raised the wrench size platforms to the same height to make use of the color change setting in the Prusa Slicer.  In a future version, I will make one for the MMU will require less filament as the size platforms can be different heights.

Updated March 31, 2025:
After using the original holder, I felt I was too generous with the space between the wrenches, so I updated it.
I reduced the gap between the wrenches by 3/16" (4.7625mm).  This also allowed another wrench to be added and still fit on the MK4 print bed.

Updated April 9, 2025:
Today I added the remaining SAE combo wrench holder for the rest of the sizes I have.