Anterior Segment Simulator

Generate a multi-part, 3D-printable parametric assembly of the human anterior segment designed to simulate the mechanics of phacoemulsification and Intraocular Lens (IOL) implantation. Scale the entire assembly to a 100 mm outer diameter footprint. Apply a strict 0.25 mm negative tolerance gap between all mating surfaces to account for FDM printing expansion. Ensure all 5 components are separate bodies and have a flat bottom surface on the Z-axis for support-free printing. Design the following 5 distinct, modular components: 1. Scleral-Iris Base (The Foundation): Generate a cylinder with a 100 mm outer diameter and 20 mm height. Hollow the center to an 80 mm inner diameter to create the main chamber. At Z=10 mm, extrude a 15 mm wide internal horizontal ring, leaving a 50 mm central circular opening to represent a fully dilated pupil. Extrude a 1 mm high, 96 mm diameter step on the top rim (Z=20) to act as a seating lip for the cornea. Cut 1 mm deep radial hash marks at 10-degree intervals around the top outer rim to serve as a toric astigmatism alignment scale. 2. Corneal Dome (With Surgical Incisions): Generate a hollow hemisphere with a 100 mm outer diameter and 3 mm wall thickness. Recess the bottom inner edge by 0.25 mm so it mates cleanly with the 96 mm seating lip of the Scleral-Iris Base. Apply a boolean difference to create two surgical incisions through the limbal edge: a 12 mm wide, angled rectangular slot (primary clear corneal incision) and a 5 mm wide slot located 90 degrees clockwise (side-port paracentesis). 3. Capsular Bag (The IOL Scaffold): Generate a hollow, biconvex disc with a 70 mm outer diameter and 4 mm wall thickness that rests securely in the posterior chamber space below the iris ledge. On the superior (anterior) surface, apply a boolean difference to cut a perfectly circular 45 mm hole, representing a completed Continuous Curvilinear Capsulorhexis (CCC). Ensure the bottom of this disc is slightly flattened so it prints without supports. 4. Fragmented Cataract Lens (Phacoemulsification Sim): Generate a solid biconvex disc with a 68 mm outer diameter. Using two perpendicular intersecting 0.2 mm wide rectangular planes, perform a boolean difference to split this solid lens into exactly four equal quadrants. This creates the mechanical gaps necessary to individually extract the pieces through the CCC opening, simulating the "divide and conquer" technique. 5. Toric IOL (Intraocular Lens Implant - Optimized for TPU): Generate a distinct replacement lens assembly. Create a central 40 mm biconvex optic. Extrude two opposing, curved, open-C shaped haptic arms extending outward to a total overall diameter of 68 mm. The haptic arms must be exactly 1.5 mm thick to allow for physical compression when printed in flexible filament. Engrave two 2 mm linear alignment dots on opposite ends of the central optic to represent Toric axis markers.

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.