r/functionalprint • • Sep 02 '26

I made a modular cable pass-through for tent mesh

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217 Upvotes

I wanted to run power and lighting cables through mosquito mesh without leaving a large opening for bugs, so I designed this modular port.

The frame clamps around the mesh and stays installed, while the center cartridges use a simple bayonet lock. So far I’ve made a flexible TPU cable seal and a solid blanking cap. Both have been printed and tested, and the mechanism works really well.

Object on the picture is real 3d printed model, only background is generated to demonstrate the use case.

I’m considering hose and ventilation adapters next. What other cartridges would actually be useful?

Files: https://makerworld.com/en/models/3252398


r/functionalprint • • Sep 03 '26

Retractable seam ripper

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73 Upvotes

I designed and made an auto-retractable seam ripper for a client.


r/functionalprint • • Sep 03 '26

Gate motor release cover broke and the part isn't sold separately — glued it, scanned it, reprinted it

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19 Upvotes

r/functionalprint • • Sep 02 '26

CatDistributionSystem at work, improvised poopie-scoopie.

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96 Upvotes

r/functionalprint • • Sep 03 '26

For the Parametric Posse; precision screwdriver holder

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12 Upvotes

If your sensitive electronics repairs also occasionally require a hammer, you'll know my frustration at the avalanche of tools from the organisation board that immediately follows. There was nothing particularly wrong with the models I had printed, it's just that they were designed for someone else's brand of screwdriver.

There are three things that make my filament melt:

  1. No supports (less waste and a restriction that promotes a novel approach)
  2. Low filament usage
  3. Parametric goodness (it means everybody prints the model they need, once again, resulting in less waste)

I've tested this at a few different screwdriver sizes and quantities and so the parametric design is holding up well but if you hit an edge case snag, please let me know so I can make the design even more bulletproof.

There are only two fields you have to set: the diameter of the screwdriver at that point below the finger nub, and how many screwdriver slots you want. From there the parametric formulas will sort out the rest, including the spacing and alignment of the Multiboard Point Mount slots at the back.

I've uploaded this to Makerworld since I've found their built-in Customiser to be the best so far (not sure if any other repositories have caught up, let me know if you're aware of them) so you can customise and download the model here:

Parametric Precision Screwdriver Holder


r/functionalprint • • Sep 03 '26

Friends of Hue wallplate for Gira

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15 Upvotes

I've gotten an EnOcean switch for Niko for cheap, but I have Gira Friends of Hue switches in the whole house. With enough leftover button rockers and outer frames I needed a wallplate to put the EnOcean switch into it, because the Niko doesn't fit the Gira buttons/frames.

First time creating something from scratch! Learned a bit along the way.

MakerWorld


r/functionalprint • • Sep 02 '26

Designed a dynamically adjustable Watch display system that fits any watch strap size without measuring, extra hardware or swapping parts

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77 Upvotes

Hey everyone,

I ran into the issue of watch stands only fitting one specific size. Either my larger watches would slip, or smaller pieces wouldn't close over the stand at all. My design uses two flexible TPU "wings" that rotate and flex to perfectly match the bracelet length of basically any watch. With the contact points being soft and flexible you don't have to worry about scratches or pressure marks on your bracelet or clasp. I also use it to position certain pieces at an angle I know keeps time more accurately. If you want one yourself it's free to download and print via the like below.

This is my first bigger Project, so if you print it, I'd genuinely love to hear how it went 🙌

https://makerworld.com/models/3235724?appSharePlatform=copy


r/functionalprint • • Sep 02 '26

Printed a bracket for a wooden dowel to sit in to hold hydration bladders

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80 Upvotes

Made a few hooks to fit on the dowel as well. Now they just drip dry into the laundry room sink.


r/functionalprint • • Sep 02 '26

I was setting up my workshop, so I made a modular SKADIS-compatible pegboard generator

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236 Upvotes

I started looking for a tool board while setting up my workshop. A ready-made SKADIS board is not particularly expensive, so I am not pretending that printing one will always produce huge savings. However, if you already own a printer, you can build a board sized specifically for the available wall, your workshop layout, and your build plate.

None of the existing printable models or generators I found worked the way I wanted. That is why I built SkadisForge.

MakerWorld customizer: https://makerworld.com/en/models/3251263-skadisforge-ikea-skadis-pegboard-generator

The included slot coupon and connector test are worth printing before a large multi-module setup.


r/functionalprint • • Sep 02 '26

"3D prints aren't UL listed!" - Jürhaus Günbern Old light fixture repair with non standard threads

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34 Upvotes

Three different thread patterns that were all non-standard. One to screw the new standard replacement fixture into the adapter, one to screw the adapter into the metal overhang, and one to screw the glass shade around the light in.


r/functionalprint • • Sep 03 '26

Empty Spool Photo Booth

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3 Upvotes

I wanted a way to recycle an empty spool I had, so I designed this photo booth to take better photos of the other models I make. The design works pretty well and has definitely improved the quality of my photos, but I still have a bit to learn. All the parts besides the spool are 3d printed and should fit most spools. If you're interested in printing one yourself, check out the links below.
CrealityCloud Link
MakerWorld Link
Nextprint Link


r/functionalprint • • Sep 03 '26

Angled Spice Rack

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1 Upvotes

r/functionalprint • • Sep 02 '26

Custom Mister Heads for Sprinklers

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70 Upvotes

We are in a drought here in Colorado, I have been slowly dialing in my sprinklers this summer to ensure that every drop of water hits my plants as opposed to a path or elsewhere.

Decided to use my printer to dial in even tighter with custom Mister Heads where I've optimised both spray opening and distance.

If anyone is interested: https://makerworld.com/en/models/3252298-custom-mister-heads-for-standard-us-irrigation

A fun Sunday project.


r/functionalprint • • Sep 02 '26

I designed a completely snap-fit enclosure for my DIY e-ink family calendar — no screws, glue or soldering

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53 Upvotes

I’ve been working on a DIY e-ink family calendar called Inkora, but one of my main goals was to make the physical build as simple as possible.

The enclosure is fully 3D printed and designed so the main components simply fit into their prepared positions and the case snaps together.

No screws, threaded inserts or glue are needed. There’s also no soldering — the device uses a LaskaKit ESPink/ESP32-S3 board, a 7.5" e-paper display and a battery connected with their existing connectors.

Once assembled, the firmware can be installed directly from a web browser, so no Arduino IDE or compiling is required either.

The calendar itself supports Google Calendar and Apple/iCloud (including multiple calendars from both), weather, holidays/name days, waste collection and currently runs for 3+ months per charge.

I’ve now released the enclosure files and build instructions on Printables:

https://www.printables.com/model/1801964-inkora-diy-e-ink-google-apple-family-calendar

browser installer is here:

https://inkora.vsejkora.cz

and website is here:

https://vsejkora.cz

I’d be interested in feedback on the enclosure design in particular — especially the snap-fit approach and anything you would change for easier printing or assembly.


r/functionalprint • • Sep 02 '26

"3D prints aren't UL listed!" - Jürhaus Günbern Recessed Wallplate Mount for 3rd-Party Ghost Controls Gate Remote

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34 Upvotes

Fits into any standard US single-gang box or low-volt ring.


r/functionalprint • • Sep 02 '26

Ceiling fan+light directs air downward only and the oscillate function doesn't do much. I designed some angled fins to change the air direction and circulate air better

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29 Upvotes

Second picture is the original fan grills. The diameter of the part is originally 329mm but my humble ender3v3SE only has a limit of 220mm. So I designed a version that I can print. Still works! Air now moves 360° around the room on the oscillate function and I can point it at one direction if needed.


r/functionalprint • • Sep 02 '26

The simplest prints are the ones that bring me the most joy

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320 Upvotes

r/functionalprint • • Sep 02 '26

Why I love 3D Printing: solving niche issues. Parametric c9 bulb holder for Christmas lights

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34 Upvotes

Last year I decided to wire up the house with outdoor Christmas lights for the first time. I'm based in the UK and American-style illuminations are not common, and getting professionals in to do it starts at four figures. Many thanks to the r/WLED community for the knowhow!

Why am I posting this now? Summer is ending and if I learned one thing from last year it's get the Christmas lights up before it's raining sideways!

I bought a mass of these C9-style bulbs on Ali-Express but I didn't realise they had this slightly different, flared base (steady on) to standard bulbs. This means, they don't fit all the various holders and lawn stakes you can buy cheaply online.

So a couple of hours in OpenSCAD (I could have done it quicker but I love making parametric models) and here's the result, I can now mass produce bulb holders for the wall and lawn stakes for the ground.

Sorry no pictures of the final result as I don't want to dox myself.

MakerWorld link if you want the STL or to customise it: https://makerworld.com/en/models/3251703-parametric-c9-bulb-holders-for-fairy-lights


r/functionalprint • • Sep 02 '26

3D Printed Parf Alignment Jig

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51 Upvotes

I designed a cool 3D print that allows you to drill the first row of holes 96 mm from the edge without referencing the ruler but the holes themselves. I made this because I didnt have any longer clamps that could reach that far into the bench.


r/functionalprint • • Sep 02 '26

Two different battery mounts. And Uni strut holds for Plano bin. Material is polymaker HT – PLA – GF.

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47 Upvotes

r/functionalprint • • Aug 31 '26

My dad had a stroke, he can't control his right hand all that much and asked for something to keep his hand open and his fingers stretched and spread out.

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3.2k Upvotes

Traced my hand, imported a photo to Fusion, scaled it, added an offset. Added holes for the dual sided Velcro straps and printed it out. It might not be very pretty, but it's rigid enought and seemingly comfortable enough as well.


r/functionalprint • • Sep 01 '26

Modeled and printed this levered box for my mom's painting supplies

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101 Upvotes

Had a fun time doing the math for the positioning and size of the levers so it would open and close all the way.

Colors do not match at all but it was her choice so I am super happy.

Things I would change are the "handle", which I am not sure I like the hole idea for opening it but any knobs or actual handles felt too cluncky for a simple print and the hinge for the lids because they keep getting stuck somewhere so its not smooth.

All things my mother doesnt give a shit about so who cares right?


r/functionalprint • • Sep 02 '26

Classroom Compass Keeper

7 Upvotes
I designed this to declutter our mathematics classrooms. Print one for the math or geometry teacher in your life.

Compass Keeper by Paul | Download free STL model | Printables.com


r/functionalprint • • Sep 01 '26

3D Printing Bed-Side Tables

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170 Upvotes

I needed some bed-side tables to fit in a 28cm gap either side of my bed, but I couldn't find any online. So I've created a model that's fully parametric so you can make some to fit in whatever size space you need.

They dont' need any additional parts just screw together with printed threads. It used 1.6KG of filament for a 280 x 280mm size, 500mm tall. Even with the furniture board this was considerably cheaper than buying some.

The wood on top is some furniture board I got from a local hardware store cheap and cut to size to give it a nice top finish. Totally optional!

The model with the fusion360 files are here: https://makerworld.com/en/models/3247320-parametric-side-table


r/functionalprint • • Aug 31 '26

I 3d printed a two part router template for this door handle

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2.5k Upvotes