[Python] How to engrave custom text on a curved surface (eyeglass temple) using Python in...

I'm creating a Blender add-on that automatically engraves custom text (like a name) on the side of an eyeglass temple (imported as an STL). The temple mesh is slightly curved and also contains a pre-existing embossed text which I want to override with my own engraving.

I import the STL temple (right_temple.stl) and convert it to a mesh and I voxel remesh it to simplify topology and remove the watermark. I create a Text object, extrude it, convert to mesh, and apply a shrinkwrap modifier to hug the curved surface and then apply a Boolean (Difference) modifier using the text as the cutter.

Goal:

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  Add custom text (e.g., “Nisha”) to the temple.
  
  
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  The text should be cleanly engraved (using boolean difference).
  
  
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  I should be able to control its position via offset sliders.
  
  
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  It should replace the existing watermark visually if possible.
  

Even though the existing watermark disappears after remeshing, my custom text does not engrave properly:

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  Sometimes it does nothing.
  
  
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  Sometimes it produces smudges or artifacts.
  
  
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  No visible difference is seen in most cases even though modifiers are applied.
  
  #Voxel remesh
  rem = temple.modifiers.new("EngraveRemesh", 'REMESH') rem.mode = 'VOXEL' rem.voxel_size = 0.5 bpy.ops.object.modifier_apply(modifier=rem.name)
  
  #Create text object
  bpy.ops.object.text_add(location=temple.location, rotation=(math.pi/2, 0, 0)) cutter = bpy.context.object cutter.data.body = "Nisha" cutter.data.size = 0.4 cutter.data.extrude = temple.dimensions.y * 1.2 bpy.ops.object.convert(target='MESH')
  
  #Shrinkwrap
  sw = cutter.modifiers.new("Shrink", 'SHRINKWRAP') sw.target = temple sw.wrap_method = 'NEAREST_SURFACEPOINT' bpy.ops.object.modifier_apply(modifier=sw.name)
  
  #Boolean
  boolmod = temple.modifiers.new("Engrave", 'BOOLEAN') boolmod.operation = 'DIFFERENCE' boolmod.object = cutter boolmod.solver = 'EXACT' bpy.ops.object.modifier_apply(modifier=boolmod.name)
  

What I want help with:

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  Why isn’t the boolean engraving working on the curved surface after remesh?
  
  
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  Is there a better way to “embed” custom text onto a curved mesh like this?
  
  
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  Should I be projecting the text differently? Is shrinkwrap the wrong approach here?
  

Additional Info:

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  Blender 3.0+
  
  
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  The temple is a solid mesh.
  
  
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  I want to automate this process via Python scripting.
  

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