Ali Express 50kg Half Bridge Load Cell Enclosure

PLA (but PETG should work, as I'm sure other filaments would as well)

4mm nozzle

20 “standard” profile

No supports, no brim or skirt

Default infill, but you can set it higher if you want.

My friend had purchased some 50kg half-bridge load cells from Ali Express.  Using various 3d prints we found online for this exact item, none of the prints seemed to fit.  It turns out, after doing a side by side comparison with some alternative load cell modules purchased from Amazon, the Ali Express versions were just different enough not to work with all of the already existing models.

Have a look at the photos and you'll see one showing two load cells.  The one on the left is the Ali Express version while the one on the right is from Amazon.  The normal ones from Amazon fit the existing models you'll find all over, but these Ali Express ones are just different enough to be problematic.

I whipped out TinkerCad and after maybe 10 revisions and edits, I now have a model that seems to fit just right.  There is a nub that shows you where to align the top half and the bottom half located on the outer edge lower left corner.  I've also added 2mm holes and for the purple one in the photo, you can see I used a simple M2*20 bolts and nuts to hold it together.  Since these are frequently screwed down to some form of base, you can use a thin screw instead. You could just as easily super glue the two half together once your load cell is in place.