3DToLD is a program for converting various 3D file formats to (LDraw) DAT files.
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Updated
Oct 14, 2026 - Python
3DToLD is a program for converting various 3D file formats to (LDraw) DAT files.
Browser-based 3D editor and physics simulator for LEGO Technic mechanisms, with LDraw and Studio .io import, smart connections, motors, gears and collisions.
Tool to get the part difference between two LDraw files
Join parts creating weird angles and get an ldr you can import in Studio
Draw a loop around some gears and get the chain that fits as an .ldr.
This repo ensures correct color mapping when importing LDraw files into BrickLink Studio, so your parts no longer show up black.
This small C# console tool takes in a 3D LEGO BrickLink Studio .io model, calculates its center of mass, and writes a new .io file with a red technic ball (part 32474) marking the balance point.
LEGO Alternate Build Companion App for MOC builders. Allows builders to easily track the parts they've used and compare against the original set inventory.
Windows Explorer thumbnail provider for BrickLink Studio .io files
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