Looking for Single Axis Robot - Linear Actuator Size? Get this 3D model from TT112 via CGTrader for $24.
STL (Stereolithography, filesize: 6.57 MB), OBJ (OBJ, filesize: 18.8 MB), IGE (IGES, filesize: 15.2 MB), STP (STEP, filesize: 8.81 MB), X_T (Parasolid, filesize: 7.13 MB)