Text Wrapped Curve: Techniques for Wrapping, Extruding, and Trimming Text on Curved Surfaces

In this quick guide, we explore practical methods to place text on curved geometry, adjust its position, and remove it from a curve. We will cover text-on-curve workflows, alignment, spacing, and how feature rules automate updates when the underlying text changes.

Starting with the basics: text on a curve

So to do this, you first need some text and this has to be a single line of text. And then you also need a line. And it does not have to be a curve. It could be a straight line as well. So once you have those two things you want to select the text and then hold shift and select the line, you want to place it on. And then you're going to use this tool right here called Text on a curve. And generally speaking, I find that it goes to the opposite side of the starting point.

That will be the green node when you go to the node editing. But you can position that by grabbing the little blue handle underneath the text and then you can drag it along the curve and place it anywhere you like. And it should snap to the center point of the circle there. So you can place that wherever you like. And you can also flip it to the other side. So there's a few different options there.

You can also play around with the offset distance as well as the alignment, and the spacing. And the spacing is going to be for the letters if they overlap a little bit. You can also edit the spacing manually with the text edit tool. Okay.

Wrapping text on a curve: settings and adjustments

With the planar option selected, place the text. Adjust the settings and location. Select Wrap/Unwrap curve from Curve -> Derived -> More -> Wrap/Unwrap. For the plane selection, select the tangent plane that was created. This approach is commonly used to wrap text or a logo to curved faces in CAD environments, enabling consistent alignment with the curvature.

Once placed, you can click close. If you click on that, the text will straighten out, and you can center it into the job by pressing a quick command. But keep in mind, the spacing will still be applied to that text. Return to selection mode and you’re back to normal. This is a practical workflow for ensuring the text maintains its intended spacing and orientation after wrapping.

Advanced technique: extruding through the surface and trimming

I like to extrude the text through the surface, trim it back, offset it the engraving depth, and finally subtract it from the solid. For plastic parts we even add draft to the extruded text before uniting or subtracting. The selection intent rules are what really make this technique robust.

The "feature curves" rule was used for the extrude; this means that if/when the note text is changed, the extrude feature will pick up the new curves (new letters) automatically - no need to edit the feature and add the new curves. Similarly, the trim feature uses the "feature bodies" rule to automatically pick up on any changes to the text. You might be thinking that you can use the "to next" option in the extrude feature to eliminate the trim feature; you'd be correct - but, you'd miss out on the next convenience. The offset feature uses the "feature face" rule to automatically collect the text faces (the new faces created by the trim command).

Practical tips for positioning and alignment

For example, the starting point of a circle often determines the initial placement of the text. The node editing helps you adjust its location, and the blue handle lets you drag the text along the curve. Positioning the text on the curve might involve flipping it to the opposite side or adjusting offset distance to achieve the desired engraving depth and legibility.

Summary of workflow: from text to carved curves

Begin with a single-line text and a reference line (straight or curved). Use Text on a curve to place the text, then adjust offset, alignment, and spacing. If needed, apply extrude and trim steps to embed the text into the surface, followed by an offset to set the engraving depth, and finally subtract from the solid. Rely on feature rules to automatically update the geometry when the text changes, reducing the need for re-editing features.

This technique is particularly robust when working with curved surfaces and is applicable to both decorative and functional engraving on CAD models. It supports changes in text without requiring manual re-creation of geometry, thanks to the feature curves, feature bodies, and feature face rules that govern how text adapts as you edit the input.

tags: #text #wrapped #curve