It calculates flat (unfolded) sheet development of ducts, rectangle to round transitions, cylinders, cones, intersections, connections, Ys, elbows, etc. For HVAC, hoppers, cyclones, ducts, silos, etc.

Generates 3D model from cross-sections and unfolds it into flat pattern.

Polyhedral Mesh to Solid is for that difficult Mesh, which won’t convert to 3D Solids because of self-intersecting faces etc. It also locates the Center of Mass for a single or a group of objects.

Edit the texts with mathematical calculations, change precision and add Suffix / Prefix.

SXF 形式（sfc/p21/sfz/p2z）の入出力、および J-LandXML 形式（.xml）の出力に対応するツールです。

The ultimate solution in 3D. This app provides several commands to draw the Catenary curve in Autodesk® AutoCAD® utilizing different input parameters

Breaks the selected dimensions by the specified points

Sorts the selected objects, placing them in new layers generated automatically, and sets the properties of these objects ByLayer.

This command allows you to select two or more dimension objects and join to form a single dimension object.

Quickly exports a table of Lines and Texts or Attribute blocks to a Table For the table of unknown attribute blocks, please use BURST command to burst all blocks first.

Tetris version for Autodesk® AutoCAD®

Find a word or phrase throughout a whole set of drawings.

A simple 2D maze generation app. It can also be used to generate random hatch patterns.

Convert Wavefront Technologies OBJ (or .OBJ) files to Mesh3D entities.

A routine that puts the XY model space coordinates as text in the 4 corners of layout viewports.

Animation GIF Maker is a utility that makes it easy to animated-gif on the Autodesk® AutoCAD® working screen.

Length, Area, Volume and Unit conversion for Autodesk® AutoCAD® objects.

SXF 形式（sfc/p21/sfz/p2z）の入出力、および J-LandXML 形式（.xml）の出力に対応するツールです。

Calculates the Total Length of multiple objects of selected type(s).

This plug-in can be used with Autodesk® AutoCAD® to quickly collect the area and length of a group of selected polylines grouped by layers.

QuickAreas is a handy add-in for Autodesk® AutoCAD® that retrieves the area property of multiple polylines and inserts a label with its associated area value.

Dynamic block that makes drawing reinforcement sections easier. Not transparent.

Rebar Distribution is a dynamic block for Autodesk® AutoCAD® that makes it easy to display custom length, pitch, diameter and distribution length of reinforcement bars.

Poly-U includes 67 kinds of mathematical formulas, gradient curves between curves, influence curve, quadrilateral mapping, curve optimization, associative curve, inner and outer contours, etc.