Mercedes SL R129 front bumper cap 3D print model

Classic cars deserve attention and precision — especially when it comes to a legend like the Mercedes SL R129.

One of our clients contacted us with a specific issue: a missing left front bumper tow hook cover. These parts are notoriously hard to find, particularly when they belong to such a specific model.

The client provided the original right-side cover, which we used as a template. After a detailed 3D scan, we created a CAD file and carefully validated all mounting tabs and clips. The model was then mirrored to fit the left-hand side perfectly.

Once accuracy was confirmed, we moved on to 3D printing using polyethylene — chosen for its flexibility and durability under repeated mounting and removal. The client requested two copies. While the second one was printing, the first was sanded and primed with a base coat. After finishing, the part was visually indistinguishable from the original. This primed sample was provided as a reference so the client could see exactly how the final product should look.

The finished pieces were shipped to the client, who handed them off to a professional painter for final coating in the vehicle’s OEM color. The entire process took about a week and resulted in fully functional and visually accurate replacements for the missing factory part.

See photos of the entire process — from scanning to the primed, ready-to-paint part.

If your classic vehicle is missing a hard-to-find plastic component, we can help. From scanning to 3D printing with OEM-level quality — don't hesitate to reach out via the contact form at the bottom of our homepage!

3D printing settings Technical notes:The 3D model is already oriented for printing.If you need the mirrored (right-hand or left-hand) version, simply use the “Mirror” function in your slicer.

-Recommended material: PETG-Wall count: 6–8 walls-Supports: Enabled

After print sand and spray paint for finish look like original one!