If you've ever tried to bring a company logo or custom icon into the physical world, you know the struggle. Opening Blender, importing an SVG, converting curves to mesh, extruding, fixing topology... it's a headache.
Vextrude solves this by automating the entire process. Here is your step-by-step guide to going from a flat vector to a tangible plastic part.
Step 1: Prepare Your SVG
-->Garbage in, garbage out. For the best 3D print, your SVG needs to be "solid".
- Close your paths: Ensure all shapes are closed loops.
- Avoid strokes: Convert all strokes to paths/outlines in Illustrator or Inkscape. Vextrude extrudes fills, not lines.
- Remove overlapping shapes: Use the "Union" or "Combine" tool to merge overlapping geometry into a single clean shape.
Step 2: Upload to Vextrude
Navigate to the Vextrude SVG Converter.
Simply drag and drop your `.svg` file onto the upload zone, or click to browse. You can also paste raw SVG code directly if you're a developer. The engine will instantly parse the vector data and generate a 3D mesh.
Step 3: Adjust Depth and Bevels
-->💡 Pro Tip: Bevels matter!
Adding a slight bevel (0.5 - 1.0) catches the light and makes your print look much more professional than sharp 90-degree edges.
Use the sidebar controls to tweak your model:
- Extrusion (Depth): Determines how thick the object is. For keychains, 3mm-5mm is usually sufficient.
- Scale: Resize the model to fit your print bed.
Step 4: Export as STL
-->Once you're happy with the preview, look for the export bar at the bottom of the screen.
Click the button. Your browser will download a binary STL file ready for slicing.
Import this file into Cura, PrusaSlicer, or Bambu Studio, slice it, and start printing!
Choosing Extrusion Depth
Depth is the one setting people leave at default and later regret, because it decides whether the part survives handling.
For a flat decorative piece — a coaster inlay, a fridge magnet — 2 to 3 mm is usually enough. For anything that will be picked up, dropped or carried in a pocket, 4 to 5 mm is the sensible floor. Below about 1.6 mm you are printing four or five layers total, and the part flexes and snaps along layer lines.
Depth also interacts with the printed footprint. A 20 mm logo at 5 mm deep feels solid; a 200 mm sign at 5 mm deep is a thin sheet that will warp as it cools. Scale depth roughly with size rather than treating it as a fixed number.
Minimum Feature Size Is Set by Your Nozzle
A standard 0.4 mm nozzle cannot produce a wall thinner than roughly 0.4 mm, and in practice you want at least two perimeters — about 0.8 mm — for anything that should not snap off.
This is why detailed logos fail at small sizes. Thin serifs, the gap inside a lowercase "e", the space between two adjacent letters: if any of these fall below the nozzle width after scaling, the slicer simply omits them. The preview looks fine because the mesh is fine; the toolpath is where the detail disappears.
Check in the slicer, not the modeller. Slice the part and step through the first few layers — anything the slicer skipped will be visibly missing there before you waste an hour of print time.
Rule of thumb:
Measure the thinnest feature in your design as a fraction of total width. If a logo is 60 mm wide and its thinnest stroke is 1/60th of that, the stroke is 1 mm — printable. At 20 mm wide the same design gives a 0.33 mm stroke, which will not print.
A Backing Plate Solves Several Problems at Once
Extruding a logo directly gives you separate floating pieces wherever the design has disconnected parts — the dot of an "i", the middle of an "O", every separate letter in a word.
Adding a thin solid plate behind the design fixes this. It holds everything in registration, gives the print a stable first layer, and means you are not fighting warping on tall thin letters. One to two millimetres is plenty; the plate is structural, not visual.
It also opens up two-colour printing without a multi-material printer. Print the plate in one filament, pause at the layer where the raised design begins, swap the spool, and continue. Most slicers support inserting a pause at a specific layer height for exactly this.
When Bevels Help and When They Hurt
A small bevel on the top edge catches light and makes a printed logo read more crisply, particularly in a single colour where there is nothing but form to look at.
Keep it modest. A bevel larger than about a third of the extrusion depth starts eating the flat top surface, and on small text it closes up counters entirely — the hole in an "a" fills in and the letter becomes unreadable.
Bevels also cost geometry. Each bevelled edge adds a ring of faces around every outline in the design, so a text-heavy piece can double in triangle count. If the file is already heavy, that is the first setting to reduce.
Print a 20 mm Test First
Before committing to a full-size print, scale the model to about 20 mm and run it. It takes a few minutes of filament and answers the questions that matter.
You will see immediately whether thin features survive, whether the counters stay open, whether the bevel reads or muddies, and whether small separated parts stay attached to the plate. All of these are far cheaper to discover at 20 mm than three hours into a large print.
If the test looks right and the full-size version still fails, the cause is almost always warping or adhesion rather than the model — which is a printer problem, and one you now know is not the geometry.