Horizontal headphone holder clamp

My dorm desk has drawers built in so none of the existing headphone desk clamps could work without having the drawers permanently open. This horizontal clamp goes on the side of your desk instead of on the bottom. I am new to 3d printing and modeling so please be gentle if you run into any problems TT.TT note that there are 2 versions--tolerances differ between printing profiles. For .24 layer height I recommend using body_21 for 21mm screw hole. For .2 layer height you can use body.