CBRK & CBRKA – Break a Circle or Arc into Equal Parts (Free AutoCAD LISP)
CBRK & CBRKA – Break a Circle or Arc into Equal Parts (Free AutoCAD LISP)
11th August 2026
FREE AUTOCAD LISP
CBRK & CBRKA — slice circles and arcs into equal segments
CBRK asks one question — how many sections? — and slices every selected circle into that many equal arc segments with radial lines, like cutting a pizza. The original circle is replaced by the pieces.
Its twin CBRKA does exactly the same for arcs. Both remember your last section count.

Download CBRK (free, .rar)
No sign-up.
How to use it
- Unzip, then load either .lsp with
APPLOAD. - Type
CBRKfor circles, CBRKA for arcs. - Select the circles or arcs, type the number of sections. Done.
Good to know
| Works on | Circles (CBRK) and arcs (CBRKA) |
| Output | Equal arc segments plus radial lines, on the source object’s layer |
| Remembers | Your last section count as the default |
| Commands | CBRK, CBRKA |
Take it further — measure and split areas automatically
This tool is part of our free AutoCAD LISP collection — 20+ routines, all free, all tested on real projects.
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