ANSI/SLAS 48-Well Test Tube Rack

Create a parametric laboratory test tube rack with an outer bounding box footprint of exactly 127.8 mm length and 85.5 mm width to meet ANSI/SLAS microplate automation standards. The overall height of the rack must be 45 mm. Inside the rectangular body, create a hollowed-out top surface plate patterned with a strict grid array consisting of 8 columns along the 127.8 mm length side and 6 rows along the 85.5 mm width side, totaling 48 tube holes. Each circular tube hole cut must have a diameter of exactly 12.4 mm to accommodate standard 12 mm test tubes with clearance tolerance. The material thickness of the outer perimeter walls and the internal cross-grid dividers must be 2.2 mm. The bottom base must feature a solid interior floor layer located 3 mm up from the baseline to support the tube bases. Cut a series of vertical, rectangular window openings along the long exterior sides to reduce filament weight and allow visibility of the tube contents. Apply a 2 mm fillet radius to the four outer vertical corners of the rack block for smooth deck integration.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.