r/functionalprint

Cat from the neighbouring apartment cat going though the vents into the garage, and I’ve had tool boxes knocked over and scratches on my truck from him.

So I quickly booted up solidworks and printed a grate to stop him from exiting in the garage.

Edit: the cat should be able to easily back into the main air duct again. And only the garage and the one apartment is on that ducts. I also don’t want him to get hurt. I have lots of chemicals and stuff that could hurt him is confirmed (anitfreeze, parts soaking in atf and acetone, etc)

https://makerworld.com/en/models/235599-garden-plant-markers#profileId-3153191

We’ve got a set of Pyrex bowl lids that were always spilling out over the bottom of a deep drawer, so I made a hanging rack for that same drawer to keep them organized and to free up some space below. I printed it in two pieces with a glued dovetail to avoid supports.

edit: Files posted here

Made this fun little desk thingy, five different modes, live flight tracking radar display, spinning globe, ai robot 'assistant', and then a clock in the style of an altimeter.

Uses both a pi and then a waveshare 2.8" esp32 display all in a 3d printed case.

Built it as a gift for my son who is in the air force, so it's supposed to look like a bit of old military gear.

I wanted to easily transport some little tools, and have them all be accessible without taking up too much bench space.

After much pondering, and looking at other creations - I've come up with this simple one.

I'm happy with it.

Basically I made a spacer for PC front panel, it snaps further and we get better airflow, I am still thinking about some mesh, bet not in a hurry :D

Most 3D-printed rulers I've found on MakerWorld have three problems:

1. The edge is too thick to draw a clean line against with a pencil.
2. Zero starts a few mm in from the end, so you can't butt it against the feature you're measuring from.
3. Single-color only, or they require an AMS for any contrast on the markings.

I designed one that fixes all three issues. The edge has a comb structure that thins the working edge for pencil work while the body stays 3mm thick for rigidity. Both ends are flush — zero is at the contact point. The multi-color version uses a single manual filament swap at one layer, so it works on any Bambu printer including the A1 Mini, no AMS required.

Three sizes in one project: 10/15/20 cm. PLA prints fine on a 0.4mm nozzle. PETG needs 0.2mm — the 0.4 clumps on the fine comb features.

Hardest part was getting the swap layer right so all the numerals and tick marks switch cleanly without disrupting the body. It took a dozen iterations to land it. But now I am using them all the time and one is even in my EDC kit.

Numbers are added via MakerWorld's text feature, so the model is best used by importing the project into Bambu Studio rather than downloading the raw STL. This also means you can customize the numerals if you want a different font, language, size, etc.

Happy to answer questions on the design or the slicer setup.

The vacuum cleaner in our 3d printer booth lacks cable management.

https://makerworld.com/en/models/2823560-universal-parametric-appliance-knob-generator#profileId-3144833

I recently had a knob break on a 40 year old stove, and finding a matching replacement was a nightmare. So, I built a "one script to rule them all" knob generator in OpenSCAD.

It's highly detailed:

• 40+ Parameters: Total control over every curve, angle, and dimension.
• Unique "Nose Angle" Logic: Recreate that specific sloped look on industrial bar handles.
• Intelligent Edges: Choose between Fillets, Chamfers, or Spherical tops that won't break the geometry.
• Hardware Clearances: Integrated bottom recess for mounting nuts and raised hubs.
• Pro Indicators: Place indicators on the body OR the grip, with adjustable depth and angle.

It supports:

• Professional Finishes: Add fillets, chamfers, or spherical tops to match original equipment perfectly.
• Advanced Bar Handles: Customizable length, width, taper, and sloped "nose" angles for indicator ends.
• Styles: Bar Handle, Fluted, Knurled, Skirted, Pointer, and Classic smooth.
• Shafts: D-shafts, Round shafts, and Splined/Star shafts (with adjustable tolerance).
• Indicators: Recessed lines, dots, or physical pointers (on the knob or the grip).
• Universal Fit: Includes a bottom indent option for appliances with raised mounting nuts or hubs.

It's been great for fixing old stoves, guitar amps, and even some lab equipment.

Pro-tip for printing: If you're using it for a stove, definitely use a high-temp material like ASA or at least PETG. PLA will eventually sag from the ambient heat of the oven!

Hope this helps someone else fix their "unfixable" vintage gear!

Took me a little while to finally sit down and design this even after thinking about it many times. I have a telescopic controller for my phone, but it’s honestly not that comfy to use and not at all pocket friendly. So I started looking at the MCon and the M4 controllers… can’t justify spending the money when we’ve got MagSafe at home🤣

Honestly I am really impressed with how usable and comfy this setup is! What do you think of it?

Hello fellow airheads

Usually these cost about £50 in the UK, but I was able to design and print in PETG. In my case it was able to handeling up to 200 Nm of torque.

This secures the final / bevel drive pinion gear, enabling torquing during removal or installation of the retaining nut on BMW motorcycle final / bevel drives. It is compatible with all post-1970 dual shock and Monolever configurations, excluding models equipped with Paralever suspension systems.

Should Fit:

• BMW /5 Series (69-70)
• BMW /6 (73-76)
• BMW R90S
• BMW /7 (76-84) - tested to 200Nm with PETG, 6 walls 25% infill.
• BMW R45/65 (78-84)
• BMW Monolever (85-96)
• BMW GS/ST (81-87)

Printed with PETG with 6 walls and 25% infill. Tested up to 200N on a 1977 R100/7.

Costs $5 for download from here:

https://www.printables.com/model/1423872-bmw-airhead-boxer-final-drive-bevel-drive-pinion-l

Ho progettato una custodia/enclosure custom in stile Prusa per la C1, utilizzando una telecamera di sorveglianza economica acquistata da Action.

L’intera enclosure è stata realizzata tramite reverse engineering delle dimensioni dell’elettronica della telecamera, cercando di mantenere un linguaggio estetico coerente con lo stile originale Prusa, senza modificare la stampante.

Il supporto:

• richiede solo qualche goccia di colla per plastica dura
• magneti: n.6 Ø5x2 mm
• stampare orientato come mostrato nell’immagine dello slicer
• ho aggiunto un piccolo avanzo di TPU per garantire più grip
• per far passare il cavo, basta seguire la guida ufficiale Prusa per il setup della loro camera sul sito

La telecamera funziona sorprendentemente bene per il monitoraggio delle stampe. Con questa modifica, però, alcune funzioni originali della camera vengono disabilitate, come il LED blu frontale di attività e l’audio in/out.

Forse si potrebbe mantenere solo l’audio in ingresso, magari per ascoltare eventuali rumori strani della macchina, ma non ho ancora lavorato su una enclosure dedicata per questo. Se richiesto, potrei svilupparla in futuro. Ho anche pensato che sarebbe interessante collegare un rilevatore di fumo al posto del microfono.

È una soluzione davvero economica, con una qualità video sorprendente, e in più si può usare un’app dedicata per il monitoraggio sicuro e altre funzioni. La camera ha anche una microSD integrata per registrazioni lunghe o timelapse. Penso che possa essere associata anche a Prusa Connect.

Costo:

• camera: 9,95 €
• cavo USB-C / USB-C da 1,5 m: 1,95 €

Aprendo la telecamera originale sono abbastanza sicuro che perderete il diritto alla garanzia. Fate attenzione all’elettronica; immagino che, se siete qui, sappiate cosa state facendo.

Detto questo, non mi assumo alcuna responsabilità se rompete qualcosa <3

Fatemi sapere cosa ne pensate, il link della camera è disponibile qui sotto.

https://www.printables.com/model/1721935-prusa-core-one-camera-mod-made-from-a-cheap-smart

These are super useful if you get distracted at the pump. (Not my design)

Funny enough one of 3d printing nerds latest vids was printing one of these which he also made a video about 8 years ago.

Funny situation, but genuinely functional. Bought an expensive “Made in Italy” bidet sprayer for our new apartment. It lasted just long enough for me to believe the label actually meant something. Then it broke immediately.

The seller refused to honor the warranty and said they don’t have replacement parts, so I ended up fixing it myself. Printed on the Bambu Lab H2S with SUNLU Matte PETG.

This is exactly why I love 3D printing.

TL;DR: I designed a feeler gauge style device to measure the gap between your thumb and fingers (it's an occupational therapy and physiotherapy device prototype). Some people have trouble bending their fingers

I just designed and 3D printed Petal Pinch, a stackable petal gauge for thumb opposition testing.

The concept started with a milk bag tag and evolved into a gauge with rotating petals that gives tactile feedback while tracking thumb mobility.

How it works:

Hold it in one hand or place it on the table and try to pinch the exposed petal with your other. If you can touch it, slide that petal under the hummingbird and try again. The assembly stacks to about 50mm with 10 petals at 1mm and 4 petals at 10mm. I printed them in alternating colours to make tracking easier.

Learn more about thumb opposition scoring: https://mobilephysiotherapyclinic.in/kapandji-thumb-opposition-scores/

Why petals:

It's inspired by the "loves me, loves me not" petal game. Also added a little humming bird design to bring the theme all together (it's also used to store the petals).

About tolerances:

3D printing 1mm petals accurately is tricky. You'll likely get 1.05 to 1.15mm depending on your printer. I'm including a STEP file so you can adjust dimensions to match your output. So you might have to print the petals a few times to get it somewhat right.

Important:

Just to be clear this is not a medical device. I just design and 3d print devices that could potentially help people. There were no clinical studies or tests that were done when developing this device just a whole lot of trial and error and online research.

Hopefully this can help someone out. And by all means of you have any suggestions on how I can make it better, let me know. I'm always down to improve my designs.

Thank you,

Free Files available on:

Thingiverse: https://www.thingiverse.com/thing:7355682

Printables: https://www.printables.com/model/1725865-petal-pinch-thumb-opposition-gauge

MakerWorld: https://makerworld.com/models/2820455?appSharePlatform=copy

Creality Cloud: https://m.crealitycloud.com/en/model-details/6a0be3dee0b3fd73ac34b421

Edit 1: think of this device like a filer gauge. It measures the gap between the fingers when you try to make your thumb touch other fingers. The maximum distance this device does is 50mm which most people can do if they are suffering from a hand condition that limits their gripping mobility. The goal of this device is to keep reducing the gap between the fingers until you get to hopefully 0mm.

Edit 2: here's a video of it being used : Petal Pinch - Thumb Opposition Gauge (3d printed) https://imgur.com/gallery/GVWNwW8

Edit 3: to be more clear some people find it difficult to close their hand or bend certain fingers. So through Occupational Therapy and physio therapy they can do the exercise to practice the finger mobility to try and close them. In most cases they use the thumb as a reference point for contact with other fingers.

My phone sits too low in the car-mount-gripper-thingy and it presses the volume buttons, so I printed a caddy to lift it up and allow the phone to be slid in and out from the top. It's put up with a week of country roads and uneven rail crossings without moving so I'm gonna call it a win.

Printed in ABS, vertically, with a brim, and supports because I just had to have that curved profile :/

Fits the "Otterbox Defender Series Pro XT with Pixelsnap" case for a Pixel 10

https://www.thingiverse.com/thing:7356190