Replacement Key Housing for Honda

Update 16 Aug 2020: Uploaded missing STL of the Button Cover. Thank you to Saplyng for pointing that out!

When both my Accord's key housing's broke I began trying replacement designs, but the ones I found online didn't seem to hold up, suffering from the same fatal flaw that broke my OEM key housing. Growing tired of this I began iterating my own housing and I came up with something that worked really well for me and now the car is on to another owner.

Print Settings

Printer Brand:

Prusa

Printer: 

I3 MK3S

Rafts:

No

Supports: 

No

Resolution:

0.2

Infill: 

10%

Filament: Prusament PETG 
 

Notes:

Yes, the pictured print orientation is correct. This is to help keep the key strong across the weakest point (around the base of the key). The STL should already be properly oriented, but if not there is a small flat on the underside towards the key. That surface should be in contact with your print bed.

Post-Printing =============

Inserting the key into the housing can be difficult. I had to use pliers. Once in place I also found it useful to melt plastic behind the "T" in the key to hold it in place. I tried all kinds of glue, but nothing quite works as well.

I also found it helpful to use a little hot glue to keep the chip from rattling around inside and to more firmly secure the button face.

The case is meant to be tacked together with superglue. It doesn't require much and be careful not to glue your fob electronics to the case (for battery changes). I've experimented with screws, snaps, and other fastening methods while trying to keep the bulk of the key case down and this was the one that held up best to everyday use.

Category: Automotive