This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Race between 0 and 320 mm. Represented with 100 mm output shaft race. Standard races with the guides points are visible on the layer "strokes" (standard races vary greatly depending on the manufacturer). Connection 1/8, stem nut M8 bottom nut M22x1,5 (nuts are independent and positioned to use standard accessories, moving as needed). Fittings and fixtures are to be inserted into the group "body", the rod accessories are to be included in the group "A rod." To change the stem stroke "Rod A" output: 1) in the group "body" enter "cover" component and the end of the tube and position it to the desired course. 2) to open the stem component "rod" and position the end of the rod in the same race, then position the ends of the group "Rod A" at the end of group "piston". To animate the rod move the group "Rod AB". Video tutorial in the following link.