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Cable Junction Frame

Posted: Sat Feb 21, 2026 3:35 pm
by Zirconocene
For the part near the ABS module.

I've been working on an updated part, to accommodate some of the harnesses I made last winter, where the ring terminals I could find that would fit a slightly upsized wire, wouldn't fit in the OEM part. I filed down some of the ring terminals but it looks sort of janky, and I thought I could do better.

It took me a while to figure out how to print successfully with high temperature, CF containing filament but I did and can now produce these kinds of parts:
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I have a couple of options for integrating the captive nut, as you can see. I also made a corresponding cover that slips over and has some small catches on the side.
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If you're not sure what you're looking at, perhaps this will help:
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PXL_20260221_200658781.jpg
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PXL_20260221_202603593.jpg
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I'd like to sell them to fund some big $ projects that I have in mind for my car, but I'm also sort of wanting to just share and contribute to this community.

Anyway, let me know what you think, and if you see any major issues with the design.

Cheers

Re: Cable Junction Frame

Posted: Sat Feb 21, 2026 3:43 pm
by blueline
Janky is such a good all-around descriptive word when used as you did. It has the proper ring. :lol:

Re: Cable Junction Frame

Posted: Mon Feb 23, 2026 11:36 am
by dr bob
Nice piece!

For those playing along at home, this junction post supports the connection between the 30 circuit (battery +) to the ABS unit in the left front corner of the engine bay. That connection is disassembled for timing belt changes, so the ability to disconnect there is a good thing. IIRC it's used on ABS-optioned 928's from '85, and all from '87.

There's a very similar connection at the "jump post" on the right side fenderwall that could use a similar up-sizing. The ultimate solution there would include a backing bus bar with fuses to each of the two or three (depends on model) connections that feed the CE panel. Long-time owners may remember a fire and a lot of car and building damage that happened at a shop in Wisconsin, when some work they were doing managed to short one of those CE panel feeders in the fenderwall. The shop owners started posting possible protection options to help prevent a similar episode in the future, but all were focused on current limiting at the battery. Not a good idea at all, but no amount of casual conversation seemed to move his opinion. Meanwhile, protecting the wiring there starts with fuses at the primary source for the section you want to protect, so they go at the jump post. There's a bit of secondary protection that a purist might prescribe for the 30 bus at the CE panel, but in fact the fuses at the jump post 'source' end also cover that case nicely.

How to actually execute a fuses fitment there deserves more thought than I've given it so far. :geek:

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It's become a bit of a Carpokes habit to post the STL files for others, and offer the actual production service to members like me who might need the part but don't have the capability at home. Habit, not a requirement.