how to add a drawer to a box

[conjured2018]

attached is a carcass for a box. a drawer is needed under the top. boxes are moving well in my biz. I have been adding drawers using table saw and would like the cnc to do it. I cut front and back and fit with 1/16 gap all around 

Is there an easier way using parameters and math to build a drawer? and then duplicate for a second?

jr

[g-andresen]

Hi,

project the carcass into a sketch and create the drawer profile related to inside dimensions

günther