Bolt Circle CNC

Bolt Circle CNC is a practical calculator for creating bolt circles and hole patterns for CNC work, machining, drilling, and layout.

Enter the center point, bolt circle diameter, hole diameter, number of holes, start angle, and angle step. The app calculates accurate X/Y coordinates and shows a clear preview of the hole circle with dimensions.

Results can be viewed as a coordinate list, CNC G-code style output, or CSV. You can also share or save the generated result, and save the preview as an image.

Features:

* Calculate bolt circle X/Y coordinates
* Full circle or custom angle step
* Start angle support
* Metric or inch output
* 3 or 4 decimal output precision
* Optional incremental values
* Optional CNC block numbers
* Visual preview with hole and dimension display
* Result formats: list, CNC G-code, CSV
* Share or save results
* Save preview image
The free version allows limited number of calculations per day. A one-time purchase unlocks unlimited calculations.