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Introducing: Rapid Designs Connector Caps

rwense

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Hey all!

Lets be real, most of us who have swapped exhausts, coded out sensors, and etc never really knew what to do with the left-over dangling connectors. I for one didn't so uhhh....I just wrapped them in numerous layers of electrical tape, a few zipties, and if I was feeling particularly fruity, even some dielectric grease 😅

Unfortunately, that isn't really the best way to handle a leftover connector just dangling. And even worse, there isn't a surefire industry standard as far as I'm aware.



So why not try and solve this problem?

Sure, tape and dielectric grease can help protect against splashes and dirt but its not quite sealed....then it hit me, essentially all of the external connectors found on the supra all belong to the same series of connectors manufactured by TE Connectivity (and custom keyed by Hitschmann automotive). These connectors are built to meet certain Ingress Protection (IP) standards (if you're curious, here's a link: Ingress Protection (IP) ratings https://share.google/xwvvXH2gTEpGDIXif). That means these connectors have sealing features like O-rings and such.

Why not just re-use those features???

Enter: 3D printing and too much time on my hands
Screenshot 2026-01-12 140754.webp
Screenshot 2026-01-12 140837.webp
Screenshot 2026-01-12 140903.webp
Screenshot 2026-01-12 142847.webp


After quite a bit of research and delving into the world of connectors, their manufacturers, the pin types, mounting features, and so on, I finally arrived to a treasure trove of CAD files thanks to a close friend. Using the files as a base, I was able to modify them to remove all features meant to securely hold pins for proper mating and only leave essentially the husks of the connectors themselves. A few revisions later and the addition of a ziptie loop, I arrived at the above connectors caps. These "caps" as I am calling them utilize the seals found in the mating connectors to properly seal out moisture, dust, dirt, etc. The best part is, some of these connectors (such as the Ride height sensor connector), are used in numerous different places around the vehicle. So they can be used for much more than simply the Ride Height Sensors!



Did I mention they print on basically any printer in a record amount of time? A set of 4 like the video above was <30 mins on my H2D at normal print speed!

20260108_190828 (1).webp
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20260109_210133 (2).webp



Printing Recommendations:
  • Use any filament that can withstand being outdoors, particularly in adverse conditions.
  • Use a non-conductive filament (i.e. those with Carbon Fiber). While I don't expect this to actually be an issue, it's probably best to print these with something electrically inert.
  • Print at 100% infill
  • Print at the smallest yet feasible layer height. The smaller the better as this will ensure the mating tabs are properly sized for the mating clips.
  • Print in a cool color, cause....why not? (maybe even some transparent PETG for some extra cool points)



Get the whole pack here!
A90 Supra Connector Cap Pack


IMG_20260106_221714.webp


20260108_190834 (1).webp
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Thraxbert

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This man doesn't want me to have dirty holes, and I'm here for it tbh. Good lookin' out. Wish I had a 3D printer!
 
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rwense

rwense

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Im like your mother, gotta make sure you wipe!

I intend on having a product page for people to order the physical print at some point as well but havent had the time to do so 😅

if you want a set of them shoot me a DM! Id be happy to print some for ya.

This man doesn't want me to have dirty holes, and I'm here for it tbh. Good lookin' out. Wish I had a 3D printer!
 

mojo_jojo77777

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so the real question is, how do we buy these so that you can print them for us, and have them ship in our boxes that our diff braces will arrive in, so that we get lots of treats in one package? lol
 

swrdply400mrelay

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Another one to do might be for the heating element sensor on the turbo inlet for the aftermarket turbo inlets that don't have it.
 
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rwense

rwense

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so the real question is, how do we buy these so that you can print them for us, and have them ship in our boxes that our diff braces will arrive in, so that we get lots of treats in one package? lol
Ya know, thats a fantastic idea lol DM me with your order number and ill send a paypal link. Im thinking $10? Ill toss em in your box 🙂.

speaking of diff braces, they should be landing in the US tonight or tomorrow! So not much longer!
 
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rwense

rwense

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Another one to do might be for the heating element sensor on the turbo inlet for the aftermarket turbo inlets that don't have it.
Ahh thats not a bad idea. Ive been trying to think of other connectors people may leave disconnected but missed that one. Are there any others im missing?
 

i3igpete

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Does the washer fluid level sensor use same as the washer pump? Or at least one of the existing ones?

And maybe @DivineDrive.co could collab with you to have front radar sensor caps

parking sensors for the folks that chop the rear diffuser
 
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rwense

rwense

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Does the washer fluid level sensor use same as the washer pump? Or at least one of the existing ones?

And maybe @DivineDrive.co could collab with you to have front radar sensor caps

parking sensors for the folks that chop the rear diffuser
The fluid level sensor and pump use slightly different connectors. I have on my to-do list to create a fluid level cap with an integrated jumper wire for those who delete it fully. Just havent gotten to it yet.

Ah! Parking sensors are a good one.

If i recall, the front radar goes to one of the connectors at the side of the bumper, which just so happens to be the same connector as the one used for ride height sensors. So it should work just fine.
 
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rwense

rwense

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I just checked, for the rear parking sensor harness, the main connector (the Hirschmann 8way 0.63 SealStar F) is essentially the same as the Ride Height sensor but with 2 extra pins, so That should be an easy addition. I imagine the front is either the 8 pin or 6 pin variant. But I will update later
 
 








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