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3D PRINTED PORSCHE ENGINE MODEL

- Made by Giuseppe Guerini using Formlabs Form 2 3D printer -

    


Giuseppe Guerini's Porsche Engine

3D Printing with stereolithography is used in a variety of applications where high detail and precision are required.
Mr. Giuseppe Guerini has been using a 3D Formlabs Form 2 printer to make a 1:4 scale model of a Porsche engine. His passion for the famous Stuttgart automaker began about twenty years ago when he bought his first Porsche.

“That was how my adventure as a collector of these cars began. I’ve had about sixty altogether and I own three at the moment - 1951, 1952 and 1958 models - as well as engines, spare parts, documentation and so on."

Having all the pieces of these engines available and being passionate about 3D printing, Mr. Guerini decided to make a scale model of one. The model has been very successful, many have sold overseas and requests for it are constantly coming in.
What for Mr. Guerini started out as a hobby could soon become a job.

esploso

SPECIFICATIONS



ENGINE COMPONENTS :
250

ESTIMATED PRINT TIME :
45 hours

ENGINE WEIGHT :
300 g

RESIN USED (Including support structures) :
650 g

SMALLEST COMPONENT :
1,85 mm3

LARGEST COMPONENT :
600 mm3

TOTAL DIMENSIONS :
205 x 100 x 130 mm
SMALLEST PART DIMENSIONS :
2 x 1.3 x 0.5 mm
LARGEST PART DIMENSIONS :
60 x 70 x 40 mm

From 3D scanning to 3D SLA printing

The production process of the engine model is carried out in several phases.

To start with, the pieces were carefully 3D scanner using a David Laser Scanner, which was able to reproduce all the details quickly and easily.
Using the CAD software Rhino 5 he remodelled the engine and defined the tolerances between the parts.

Once the 3D models of the components were completed, he made small modifications to the meshes using Autodesk Meshmixer (software) and optimised it for 3D printing.
Next, the file was imported into PreForm's dedicated slicing software to set the print parameters. The extremely complex details of some components, such as the engine cylinder heads, required manual positioning of the support structures.

software

Assembling the engine

Once thoroughly washed and very carefully separated from the support structures, all the parts are put into a UV oven Mr. Guerini made himself and are then finished.

The most time-consuming part of the preparation is reworking the holes in some of the pieces. Many of these are threaded with M1.6, M2, M2.5 threads while others are bored out so the parts fit together perfectly.
Before painting, the surfaces of the pieces are sanded to eliminate the attachment points of the support structures.

Using special modelling metallic paints the parts are airbrushed so that the finished colour is as close as possible to the original mechanical part. It takes around four hours to delicately assemble the model engine.

assemblaggio

Choosing the correct resin

Mr. Guerini has used some Formlabs engineering resin to realize his Porsche engine model.

Tips for model makers

“I can highly recommend the Form 2 to anyone who is passionate about model-making.
With some patience, time and a sound knowledge of the mechanics, you can create pieces of any complexity. Beware though, it’s hungry beast craving for 3D models.”
.

mosaico