125B Expansion Lid with Sunken Screw Holes

thingiverse

I've taken the lid from redkum's 125B Effect Pedal Box and made it into an expansion lid with sunken screw holes that allows for 17mm more space in the original aluminum box with this lid attached to the bottom. The sunken screw holes allow you to use the original screws that come with that box without having to either modify the enclosure to accept a different screw size, or find longer versions of the original screws.I printed this with a 1mm nozzle on an Ender 3 with ABS, which allowed for some shrinkage due to the properties of ABS. I have included a template that you can pre-print (which measures exactly the same HxW as the full lid) and adjust to find the exact dimensions that your material (and possibly, your 125B box) will allow—although the attached file should work fine. Still, before wasting plastic, I would experiment, as the tolerance threshold for both the screw holes and internal lip are tight. You should be able to stretch or shrink the actual lid file's X and Y profiles to the exact same degree that the Templete profiles are stretched to achieve the same results with the lid, as it is primarily the X and Y axes that exhibit effects on the tolerances of the screw holes and inner lip as they meet and "clamp" the top of the enclosure.