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Re: Prototype for Turn Signal Stalk Base

Posted: Tue Sep 26, 2023 6:54 pm
by Tom
That's awesome awesome work!! That turn stalk is not cheap and it is a common failure point, so this is a seriously useful design! Are you planning to post the STL here when ready? I'll promote it in the newsletter and elsewhere if you go. Super impressive!!

P.s., you can embed videos hosted on most video sites, and/or have it play here natively by using the VIDEOPLAYER BBC above the posting box. Your video is currently wrapped in a google page, so I couldn't get it to auto-play using the video player -- needs to be a link directly to the video file.

Re: Prototype for Turn Signal Stalk Base

Posted: Tue Sep 26, 2023 6:57 pm
by blueline
Awesome Usury! It's good to see how well you've already figured out so much of the 3D puzzle. That's something I'll leave to the rest of you. It is impressive.

Your Google photos video link worked fine; it's a good workaround. I know Carpokes is good with YouTube and Vimeo embeds but not sure if any other embeds are compatible. That's Tom's purview! :D

Edit - Tom's post beat me to the punch - his appeared after I hit the "submit" button.

However, to repeat, your video link worked for me in Google Photos.

Re: Prototype for Turn Signal Stalk Base

Posted: Tue Sep 26, 2023 7:02 pm
by usury
Tom wrote: Tue Sep 26, 2023 6:54 pm That's awesome awesome work!! That turn stalk is not cheap and it is a common failure point, so this is a seriously useful design! Are you planning to post the STL here when ready? I'll promote it in the newsletter and elsewhere if you go. Super impressive!!
Oh yeah, I'm absolutely gonna post the STL here!

I realized for the cost of the replacement combo switch assembly, I could buy a 3D printer and a bunch of filament and make my own part and still have a 3D printer when I'm done. And cash left over.

Re: Prototype for Turn Signal Stalk Base

Posted: Tue Sep 26, 2023 7:15 pm
by usury
blueline wrote: Tue Sep 26, 2023 6:57 pm Awesome Usury! It's good to see how well you've already figured out so much of the 3D puzzle. That's something I'll leave to the rest of you. It is impressive.
Thank you very much! I feel like I've crammed for an exam with the amount of stuff I've learned recently.

Re: Prototype for Turn Signal Stalk Base

Posted: Mon Oct 09, 2023 1:14 pm
by usury
I haven't forgotten about this. It has been a busy couple weeks. I'll have time this week to finalize the version that will go into my car.

I also want to model the simpler separate components, the small nylon bits, while I still have everything apart.

That way, whomever needs to print one in the future has the option to print those components too. I have enough pics to make a "What's Inside" post, complete with dimensions of the tiny springs (in case anyone loses those during disassembly).

Re: Prototype for Turn Signal Stalk Base

Posted: Thu Nov 02, 2023 2:34 pm
by usury
I've made a ton of progress on the turn signal stalk base 3D printed model and part

I have two nearly identical versions. The "Slot Nose" version uses the factory nylon Hi-Beam Latch. The "Integrated Nose" version has that component built into the model. (The portion protruding from the front is the easy-to-identify difference. The business end of the difference is inside the main tunnel, shown in pics below.)
Model - SlotNose.jpg
Model - SlotNose.jpg (49.37 KiB) Viewed 1203 times
Model - IntegratedNose.jpg
Model - IntegratedNose.jpg (50.32 KiB) Viewed 1203 times

They both work great!

Here, I have all the factory components installed on the "Slot Nose" version. The second photo below attempts to show the humps/valleys inside the main tunnel on both.
PXL_20231102_204517787.jpg
PXL_20231102_204517787.jpg (138.57 KiB) Viewed 1203 times
PXL_20231102_204610107.jpg
PXL_20231102_204610107.jpg (143.42 KiB) Viewed 1203 times

This bright green version is made with ASA (acrylonitrile styrene acrylate), which is chemically similar to ABS and should withstand even the hottest summer cabin temperatures.

For printing with ASA, I made a "heated enclosure" from an old windshield sun shade and a cardboard box. Other than the higher temps, slower print speed, and enclosure, printing with ASA was pretty simple. I ran charcoal filters in the box and the printer was in a ventilated room. No odors whatsoever (Polymaker-brand fillament).
PXL_20231101_173725752.jpg
PXL_20231101_173725752.jpg (280.28 KiB) Viewed 1203 times
PXL_20231101_221603368.jpg
PXL_20231101_221603368.jpg (251.83 KiB) Viewed 1203 times

I'll make a post some time this weekend about the features, etc.

Re: Prototype for Turn Signal Stalk Base

Posted: Thu Nov 02, 2023 3:40 pm
by notny41
Impressive!!! How did you resolve the stringy stuff?

Re: Prototype for Turn Signal Stalk Base

Posted: Thu Nov 02, 2023 4:21 pm
by usury
notny41 wrote: Thu Nov 02, 2023 3:40 pm Impressive!!! How did you resolve the stringy stuff?
Thank you. 🙂

With the PLA prototypes, stringing got a LOT better when I turned off "Z hop" in the retraction settings. I also noticed much less stringing when printing inside the makeshift enclosure (still PLA), with slightly higher nozzle temp, and with cooling at 100%.

With ASA (inside the enclosure, no Z hop, 100°C build plate), stringing was almost non-existent. Truly delightful material.

Re: Prototype for Turn Signal Stalk Base

Posted: Thu Nov 02, 2023 9:09 pm
by usury
It works! This one is going into the car tomorrow.


Re: Prototype for Turn Signal Stalk Base

Posted: Thu Nov 02, 2023 10:43 pm
by notny41
beautiful! what an accomplishment! i know that feeling. i’ve built lots of things with arduinos and the iterative process of testing, troubleshooting, problem solving and a well-polished finished product is very gratifying! congrats and great job!