Mouse pad rack for under-table keyboard drawer

If you are using an under-table keyboard drawer and is looking for a convenience utility to place your mouse next to your keyboard. This mouse pad rack may help.

The rack will slap-fit to the keyboard drawer that has a sideframe thickness of 10mm.

The main mouse pad rack is of 15cm long and the extension one is 7cm long for maximize the mouse pad rack area.

A finished PLA part was found to glossy for optical mouse, therefore I put Painter's tape on the surface to enhance the function. The blue Painter's tape looks good too.

If someone knows OpenSCAD, I would ask for your help to convert this model into an user-adjustable design. So that everyone can fine tune the dimension to fit their own keyboard drawers. Thank you.