The file 'Plywood Furniture Joint Stabilizer- 13mm 3D Printer Model' is (sldprt,stl) file type, size is 792.62 KB.
My bedside table was wobbly. Now it is not! The 90 degree part does not do much on it's own. I would start with two T-shaped parts and see how that improves the stability of your furniture first. I included the 90 degree model as it was the first part I tried out.
I know this is a case specific print, but I included the CAD model. Feel free to remix it to fit your needs.
13mm_90_deg.SLDPRT |
13mm_90_deg.STL |
13mm_T.SLDPRT |
13mm_T_V2.STL |