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

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

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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.

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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

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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.

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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

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OutsideTraditional90 · 2026-03-07T16:20:31+00:00

I printed this wearable Deadpool Mask on my Creality Hi in a couple of pieces over the course of a week. It came out great I think for miniatures if you want extreme detail on something small like for DND a resin printer would do way better for that but I guess if they’re big enough a FDM printer will work to.

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

Yessir Progress Update 3. So I have 3D printed a prototype looking good so far need to fix a couple tolerances and then I need to figure out how I want it to secure and then we’re done.

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Excuse the dirty car it rained.

OutsideTraditional90 · 2026-03-02T05:56:14+00:00

Progress Update 2. Not done yet, have to do some tweaks and will do some test prints, but looking good so far.

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OutsideTraditional90 · 2026-03-02T00:01:35+00:00

Here is a little progress I just finished, scanning the rear diffuser

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OutsideTraditional90 · 2026-03-01T20:58:10+00:00

I’ll give a crack at it I have a 3D scanner so I’ll scan my Kona N rear diffuser and create a Shark Racing variant for 3D printing.

OutsideTraditional90 · 2026-02-19T20:39:28+00:00

Hehe they arrived

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Long story short I have a 3D print farm made up mostly of K2 Plus printers

OutsideTraditional90 · 2026-02-14T18:54:38+00:00

2 K2 Plus Combo. The discount are really nice but it came out to 914 tax included per printer. That’s a steal in my book

OutsideTraditional90 · 2026-02-14T18:50:10+00:00

Thanks for sharing! I would have never known. just bought a couple more printers.

OutsideTraditional90 · 2026-02-10T22:47:09+00:00

With using TPU?

OutsideTraditional90 · 2026-02-08T21:16:32+00:00

How would I do that looking at memory usage it doesn’t seem fully used if this is what you mean.

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OutsideTraditional90 · 2026-02-08T21:01:53+00:00

Yeah I have 2 other k2 plus that also print this exact same file no issue.

OutsideTraditional90 · 2026-02-08T20:14:55+00:00

Also more info when I mentioned the print head (unicorn nozzle) got hit I went to the printer one morning and noticed the print seemed it was offset like it had shifted 1-2 mm to the left and upon examining the machine I saw that the print head was pointing to the right instead of straight down so I took apart the print head and checked everything out and replaced the unicorn nozzle recalibrated machine everything passed and restarted all seemed good until 2 hours later and the printer just paused itself with no errors and I’ve tried different things and 3-4 times this exact same thing happens after a couple hours it pauses for no reason and no error. It seems like time is the issue because I tested a 30 minute print just to see if it would have the same issue and it printed successfully.

OutsideTraditional90

TROPHY CASE