Recommended filament for this print

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Referenced item	What to verify	Price & availability
PETG filamentAmazon · Affiliate link	Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.	Check price at Amazon
ASA filamentAmazon · Affiliate link	Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.	Check price at Amazon

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Tools & Jigs

BMW N47 N57 walnut blasting adapter

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CC BY

Commercial use allowed

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The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.

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Description

This is a vacuum adapter for walnut blasting the intake ports on BMW N57 and N47 engines. The design is as similar as possible to the original BMW adapter to fit direct onto the cylinder head ports. The connection to the vacuum cleaner hose is: - inner diameter: 34mm - outer diameter: 39mm The blasting nozzle diameter should not exceed 8mm to fit through the injection hole.

Compatible Vehicles

BMW (all models)

Published Jun 28, 2026Updated Aug 13, 2026

Originally published on thingiverse.com by Andreas Jes (Jesand) · License: CC BY

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