MK2 Ford Fiesta Window Winder

This is a replacement window winder for a MK2 Ford Fiesta after the previous one snapped off.

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After breaking the original window winder, I opted to design and print a replacement part for my car. I took a photo of the original winder spline, added it as a raster layer with Siemens NX8.5 and then traced with the spline tool to reproduce it, as I couldn't accurately determine it's original dimensions.

Using calipers to determine the rest of the winder dimensions, making some changes to help with printing, e.g. the handle part being printed as one piece.

Two versions exist, one that closer replicates the original and requires support material to print, and another that can print flat on the bed.

The rotating knob is printed in place and requires no assembly, to do this a few test prints on the tolerances were required, especially determining the minimum required separation distances and overhang amounts.

The entire project was done in Siemens NX8.5 supplied as part of my undergraduate degree. The winder has lasted over a year in constant use!

All the files (NX and STLs) have been provided

This may fit other Ford models that use a similar spline to attach the winder.

fiesta_mk2_winder V3.prt

Siemens NX8.5 Source File

unigraphics - 1.14 MB - 02/14/2018 at 13:47



STL that will require supports for printing

Standard Tesselated Geometry - 398.81 kB - 02/14/2018 at 13:47



STL that requires no supports

Standard Tesselated Geometry - 393.64 kB - 02/14/2018 at 13:47


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