MX5 AC Delete HVAC Pipe and bungs - image

Files (5)

AC_Drain_Bung.STL

STL

233.9 KB

AC_Fire_Wall_Bung_Large.STL

STL

261.1 KB

AC_Fire_Wall_Bung_Small_v2.STL

STL

229.1 KB

HVAC_Ducting_Sqr.STL

STL

451.9 KB

HVAC_Ducting_Tri.STL

STL

483.5 KB

Print plan

Exact totals not supplied

Print setup plan

Useful setup guidance without pretending STL byte size can predict filament, cost, or print time.

5 model files

Material plan

PETG / ASA

Published material guidance; still check heat, UV, load, and printer compatibility.

Starting setup

40% infill

A planning starting point only; wall count, orientation, and geometry often matter more than infill.

Final totals

Confirm in slicer

Choose the needed variant, then slice it for grams, cost, and print time.

Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.

Reference shelf

Recommended filament for this print

Product references matched to the published material guidance. Confirm diameter, heat resistance, colour, and printer compatibility.

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

Affiliate disclosure: if you buy through an eligible link, 3DPrintedCarPart may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Confirm product specifications, compatibility, seller terms, and vehicle safety before ordering or using anything. Amazon may redirect you to a nearby supported store; otherwise the original Amazon.com page remains available.

Unsure which one fits? Read the automotive filament guide.

Mechanical/Functional

MX5 AC Delete HVAC Pipe and bungs

2 downloads266 views0 quality score

Print this part

Use the part context as a starting point, then confirm geometry-dependent values in your slicer.

Files

5 hosted model files

STL

Material start

PETG or ASA

Saved part guidance

Strength start

medium to high infill for durability

Saved part guidance

Orientation / supports

verify in slicer

Exact totals

Slice for grams + time

Model geometry and final settings determine both

Vehicle exposure

Engine-bay exposure — use rated material or OEM

Open the STL, 3MF, or OBJ model in your slicer before printing. Exact grams, time, and final support placement come from the actual slice. Test-fit and heat-check the part before installing it in a vehicle.

License & use

CC BY

Commercial use allowed

Attribution required

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.

Shared by

3DPrintedCarPart

Verified

Description

Part of removing the crumbling AC system from a 1995 NA MX5 involves removing the evaporator box from behind the dash. You can buy a replacement part to connect up the blower housing to the heater core, but where is the fun in that? This is a work in progress as only designed the ducting, I am yet to print and test fit the parts. Edit 22/04/2022, Uploaded the CAD models of the Ducts but I am yet to print them, so no idea if they fit or not. I have also draw up some bungs to plug the holes left by removing the box. One of them is for the box drain pipe, secured by a cable tie. And the other 2 push into the rubber grommets in the firewall. This is for the RHD version of the car, I believe (but cannot confirm) it is different for the LHD version. I have printed the Bungs in PetG due to close proximity to hot engine parts.