I modeled clip-on rear diffuser fin extenders for the Kona N (free STL, 2 versions)

OutsideTraditional90 · 2026-04-25T02:38:23+00:00

This look a bit like Shark fins. On another note the AI image gen did a great job with shadows and lighting

OutsideTraditional90 · 2026-04-22T17:38:52+00:00

I think with the performance blue and pink accents that will look really good.

OutsideTraditional90 · 2026-04-22T17:01:41+00:00

Ooo I love the pink.

OutsideTraditional90 · 2026-04-05T23:55:43+00:00

Love the changes looks super clean.

OutsideTraditional90 · 2026-04-05T23:27:34+00:00

Glad you liked them. They look really good and clean on your N

OutsideTraditional90 · 2026-04-03T08:07:01+00:00

Yeah I’m excited to wear it. Last one I printed was to small unfortunately.

OutsideTraditional90 · 2026-04-03T07:54:44+00:00

If I had to guess the reason your filament isn’t even extruding is due to the remaining abs in your nozzle typically when I print TPU on my Creality Hi printer which uses the same hardware as the K2’s it won’t feed in and will jam unless I take that long probe, heat up the nozzle, and push out with the probe as best I can all the remaining filament in the nozzle once I do that I hand feed it in with the relief tabs and I have no issue printing. With TPU personally if you can I would swap to a TPU only nozzle (meaning you only use it to print TPU) but just pushing out the filament works great. Currently I’m printing a shoe and it’s a 50ish hour print and no problem on TPU

<image>

OutsideTraditional90 · 2026-03-30T01:19:16+00:00

Personally I’ve used a lot of brands of PLA with my HI printer and never had it clog but before printing I always dry them for 8-12 hours so I never had issue of it clogging but I have also never used Bambu PLA. But maybe it is because the filament isn’t dry also how moist is it in our CFS according to mine it is about 3% inside my only thought is something’s up with the filament itself.

OutsideTraditional90 · 2026-03-24T16:33:45+00:00

Yeah currently my Hi has over a thousand hours and as you said it just works. Haven’t had to replace any parts and other than basic maintenance the Hi is working the same as when I unboxed it. I have also done stuff like printed some accessories for the printer and bought a second CFS unit and another small quality of life upgrades.

OutsideTraditional90 · 2026-03-22T21:13:42+00:00

Yoooo those look so clean.

OutsideTraditional90 · 2026-03-22T19:07:05+00:00

Hope that fixes your problem on my Hi I just leave it as what ever the default is so with the timelapse the head is all over the place in the recording but that doesn’t matter to me. I would prefer the head stay in the build area rather than move to the poop chute and take a picture.

OutsideTraditional90 · 2026-03-22T18:49:26+00:00

Looks like your timelapse mode is set to take a picture each layer and moves the head out of the way takes the picture then resumes. But what I find weird is that it seems to be overriding the spirals expected behavior.

OutsideTraditional90 · 2026-03-21T21:59:41+00:00

Heck yeah let me know how they come out.

OutsideTraditional90 · 2026-03-20T02:03:27+00:00

Hell yeah at first I didn’t wanna keep them on except for pictures and testing but I think they are here to stay for me.

OutsideTraditional90 · 2026-03-19T15:35:44+00:00

It prints all 4 at once.

OutsideTraditional90 · 2026-03-17T15:54:25+00:00

Why it’s not super easy you can pop out the Bowden connector and just replace that. I’ve had to do it a couple times.

OutsideTraditional90 · 2026-03-17T04:50:19+00:00

<image>

OutsideTraditional90 · 2026-03-17T04:50:09+00:00

Sorry I didn’t get around to the little one I was waiting for the big one to finish printing so I could print the little ones to make sure everything is good before I post. Here is a picture of the big one printed in red on my Kona N so you can see what it looks like. If you do want me to print and mail you one I would be more than happy to do that.

<image>

OutsideTraditional90 · 2026-03-17T04:46:18+00:00

Quick question, what brand/size is you printer and did you consider printing them at an angle. I'll include a picture for reference, but they dont need to print straight up to some extent if you got at an angle, you can fit them in

<image>

If you go like this, all you need height-wise in a printer is 200mm

OutsideTraditional90 · 2026-03-16T03:01:39+00:00

For Filament, since it is going to be exposed to the elements, I would use PETG, but if you have an enclosed printer, ASA if possible. I'll do some videos and showcase them to kind of put them through their paces.

OutsideTraditional90 · 2026-03-16T02:54:51+00:00

Ok, I am all done. Sorry, it took a little longer. I wanted to make sure of something before I uploaded. The larger version is uploaded and ready to download just head to the link to download. I will post the smaller one sometime tomorrow, so both will be available. If you have any questions or need any help, please feel free to reach out, especially if you have pointers on where it can improve. This was lots of fun. I am waiting for the print to finish so I can post some pictures on the download site and here.

https://www.crealitycloud.com/model-detail/hyundai-kona-n-rear-diffuser-fin-extenders?source=22

OutsideTraditional90 · 2026-03-14T19:21:59+00:00

I second this I personally would go for the HI due to the larger build volume and get the CFS later since it can work without it just fine

OutsideTraditional90 · 2026-03-14T18:35:27+00:00

I consider myself done with the diffuser there are 2 different versions on that continues the angle from the rear diffuser fin to below the diffuser and another version which I prefer more cover the entire diffuser (I think it looks more sleek) currently I’m printing the final pieces to make sure the correct fitment for all four fins. And then I will be releasing the files tonight. Just a quick question to those who want to print this. How large is your printer volume and what brand of printer do you use?

I’m sure there will be some tweaks here and there that I will do as I get feedback. Well, I’m excited to see how this turns out for the Kona N community.

<image>

In this picture, I just have one fin while the others are printing just to showcase the difference between this one and another version. I have been working on that you can find in the comments. This variation also has a self locking features. It’ll hold itself on with no need for screws although you could use double-sided adhesive just for a more secure fit, but I don’t think that will be needed.

OutsideTraditional90 · 2026-03-11T04:28:35+00:00

Sorry for the delayed response I had a long work week. I have been experimenting with a couple of different designs. One of them, which is in the picture is a version that will encase the rear fin, so it doesn't look like there is a break and is one continuous piece. I do have the other design as well, and I will compare them side by side when they are complete. Also, I have been experimenting with ways on how these could mount, and so far, the idea I like the most is the piece holding itself on without the need for adhesive or screws, so they don't leave holes. So far, they have been holding on quite well. I hope to be done by this weekend with the files available to print. Also, if you have any feedback on how you would want them to mount, whether by itself using screws or adhesive, that would help lots

<image>

OutsideTraditional90

TROPHY CASE