Apply a radius to sharp corners of a path. The extension is written for inkscape 1.0.1 (but also contains a backport for 0.92.4). Usage: The screenshot demonstrates the usage. In the upper half, a red path with 4 vertices is shown. We select two vertices: the top left and bottom left corner (shown in blue). Run "Rounded Corners" from "Extensions" -> "Modify Path". The result is the path below. (Viewed here in edit mode again to show all the new vertices.)
Input filter for reading RD files, as generated by e.g. rdworks to drive RUIDA laser controllers.