This version will also allow you to change the depth of the draws to suit your needs! There is also the option to add clips to the top and/or bottom so the racks can connect together. Make your draws as deep as you want - within the limits of your Z height. Check out my other listing for the customizable draws that go with this! (http://www.thingiverse.com/thing:244335)Customise the number and type of rows you would like. The normal, double and quad rows are 27mm high and the half row is 13.5mm. Multiply out as needed and then add 1mm to account for the final top wall thickness. The unit is 121mm wide. Select the options to have either (or both) top and bottom clips. So the RackTEST.stl would be: (273) (13.51) 1 = 95.5mm On a Huxley (the machine I have) the maximum number of normal height rows are 4. On a Mendel that would increase to 7. YMMV on other machines :-) Then print out all the draws you need.