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AutoCAD and Civil 3D tips, guides and tutorials. 231 posts.

How to Easily draw Polygon in AutoCAD? (Hexagon, Octagon, etc.)

Draw a hexagon, pentagon, octagon or any polygon in AutoCAD with the POLYGON command, using inscribed or circumscribed radius or an edge length. November 8, 2022 · 3 min read

How to TRIM everything Inside/Outside a Boundary in AutoCAD?

Trim everything inside or outside a boundary in AutoCAD in one operation with the hidden Express Tools EXTRIM command, not available in AutoCAD LT. October 25, 2022 · 1 min read

How to Change Elevations of COGO Points in Civil3D

Raise or lower the elevations of many COGO points at once in Civil 3D, such as adding a constant to a point group, using Edit Points in Prospector. October 11, 2022 · 1 min read

How to Measure the Distance and Angle Between 2 Points in AutoCAD

Measure the distance and angle between two points in AutoCAD, comparing the slower dimension method with the single DIST command. September 27, 2022 · 2 min read

AutoCAD is running out of Memory (5 Quick Solutions!)

Fix the AutoCAD running out of memory message with 5 quick solutions, from cleaning temp files to adjusting performance settings and freeing disk space. September 13, 2022 · 3 min read

AutoCAD Flickers and Flashes? Learn How to stop that!

Stop AutoCAD flickering and the jumping status bar with three fixes: shrink the status bar, dock the layout tabs, or turn off status bar wrapping. August 30, 2022 · 2 min read

How to Edit Spline in AutoCAD (Add/Remove Vertexes and More!)

Edit a spline in AutoCAD: add or remove vertexes, change degree and weight using multifunctional grips, SPLINEDIT and Properties. August 16, 2022 · 3 min read

3 Ways to Convert Spline to Polyline (How to Choose the Best!)

Convert a spline to a polyline in AutoCAD with three methods, handle multiple splines at once, and turn a spline-fit polyline back into a spline. August 2, 2022 · 4 min read

Drawing SPLINE in AutoCAD (Best Practices!)

Draw a SPLINE in AutoCAD with the Fit and Control Vertices methods, understand what splines are, and see best practices for working with them. July 19, 2022 · 3 min read

How to convert Solid to Hatch in AutoCAD

Convert 2D solids to hatches in AutoCAD with a simple LISP, handy for solids from Civil 3D surface slopes. Hatch boundary polylines are added too. July 5, 2022 · 1 min read

How to Calculate the Moment of Inertia in AutoCAD

Calculate the moment of inertia of a simple or complex section in AutoCAD using a Region, from a simple section to a complex one. June 14, 2022 · 3 min read

How to perform AutoCAD Spell Check the Easy Way!

Check spelling in AutoCAD with the built-in spell checker. Pick the right English dictionary and catch typos in text before drawings go out. May 31, 2022 · 3 min read