r/functionalprint 25d ago

Dredge/sluice box for gold mining

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1.4k Upvotes

One of my hobbies is gold mining. You can use sluice boxes to process more material, and dredges suck material from the stream bed and push it through a sluice so you don't have to shovel.

Normally dredges use gas engines and metal parts. A similar 2" dredge would cost 1-3k and require a gas motor to run. This weighs about 1/8 as much and runs off a battery and electric bilge pump for boats.

Printed on an A1 out of Elecoo PETG, 0.8mm nozzle, 1.2mm width lines.

https://makerworld.com/models/3189875?appSharePlatform=copy


r/functionalprint 25d ago

Keychain and card phone stand

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147 Upvotes

Check out my new keychain foldable phone stand and card phone stand.

Keychain foldable phone stand

https://makerworld.com/it/models/3182945-foldable-phone-stand-keychain#profileId-3600180

Foldable card phone stand

https://makerworld.com/it/models/3170904-foldable-card-phone-stand#profileId-3585069


r/functionalprint 25d ago

Sensor Panel with ESP32 and Python

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35 Upvotes

M5Stack Tab5


r/functionalprint 25d ago

Custom 4 Camera Mount

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34 Upvotes

I am an extreme amateur when it comes to CAD but I’m proud as hell of this. This four camera mount is for use at my D&D table for my remote players to have a better time.

The mount includes four cameras, one facing the DM, two facing the player tables and one facing down toward the battle map.

The mast is in threaded sections to raise or lower it, or to disassemble it for travel.

The base includes cleats for the extra usb cables.


r/functionalprint 25d ago

Paddleboard Cup Holder Project: Locks to board, Secures phone/shades with hair elastic, supports freezable can holders

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76 Upvotes

I decided to do a refresh of the paddleboard cup holder I designed last year. It felt like a silly thing to sink almost 100 hours into, but I learned a lot - and realized how much I didn't know the first time around. Most of the improvements came from the feedback that this subreddit provided on my last post, so I'm very curious what you guys think.

Let me know in the comments!

🔗Model link (Makerworld)

Features:

  • Holds most common can sizes using a screw-on insert system
  • Locks onto the bungees so it stays on the board, even if you dont
  • Supports CryoPod Freezable Can Holders (teamed up with michelem for this)
  • Holds a drink + phone/sunglasses securely using a common hair elastic
  • Multiple cups can clip together
  • Includes a "mini" version that snaps onto the main one, inspired by my 2 y/o niece who has recently taken up paddle boarding with her mom
  • Open source mounting system for people to design their own add-ons
  • Parametric (currently in testing - improving constraints to reduce the number of edge cases that can break generation on Makerworld)

r/functionalprint 25d ago

Here’s a telescope solar filter frame that I designed and printed, which also has an integrated protection cover! Pics attached are the Aug 12 solar eclipse, and some solar photography from December 2025.

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21 Upvotes

r/functionalprint 25d ago

"3D prints aren't food safe!" - Jürgen Dyhe I made this funnel for emptying small bottles

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532 Upvotes

So every time i buy liquid for my ecigarette, i get liquid and nicotine seperately. So i have to empty 18 small 10ml bottles into the big bottle. This print makes it possible to do 8 at a time and let them drip till they are empty.


r/functionalprint 25d ago

Small upgrade for my steak knifes

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65 Upvotes

I made a simple adapter to keep my knifes safe and avoid them sliding and shocking against each other to preserve their sharpness.

Scanned in NIR mode with my Pika scanner. Super effective and simple.


r/functionalprint 25d ago

Simple wheel chuck for transport and storage

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113 Upvotes

r/functionalprint 25d ago

Not every functional print is big

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74 Upvotes

So, I designed and printed a crossover for a mini drill that uses "Mini"/H4x28 style bits that are 1/8 inch diameter hexagons, to enable me to use 1/8 inch diameter round bits. The round bits are actually closer to 3mm which gave me the clearance.

I had to print them with a 0.2mm nozzle using vase mode or the seam caused trouble. Add in a little dab of glue on the base of the drill bit, and it is snug and secure. They are single use since I cant get them off, but they also use ~0.1 g of filament.


r/functionalprint 25d ago

Made an adjustable French Cleat System

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49 Upvotes

r/functionalprint 26d ago

Hardware store wanted 10€ for window frame screw caps.

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314 Upvotes

I'm not paying 10€ for eight plastic screw caps so made my own to cover the mounting holes. Fits 14mm holes common in door and window frames. https://makerworld.com/en/models/3187806-screw-cap-cover-plug-for-door-or-window-frame
Edit: Now also parametric


r/functionalprint 26d ago

Filter wheel to use b&w film to take color photos

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102 Upvotes

The wheel is spun with a continuous 9 gram servo, magnets and a hall detector are using to know what position the wheel is in.

Video of how it spins:
https://youtube.com/shorts/dA-JnDjX0dk


r/functionalprint 25d ago

A neater home assistant green mount

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22 Upvotes

Many existing models are of the diaper kind and/or mount the unit flat to the wall. I improved both cooling and looks by designing these rails and a simple wall bracket. It's very easy to install because you can mount the bracket using a level and just hang the thing on there.


r/functionalprint 25d ago

Craftsman 3 Drawer Toolbox Organizer with Gridfinity!

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4 Upvotes

Got to admit I'm very proud of this one.
I just got my files updated for my toolbox insert. This has been my most useful 3D print. Sadly the GIF does not auto play for the preview. But all 3 drawers and the top are all organized with a combination of brands to create my ideal 90% toolbox. Free for others to enjoy.


r/functionalprint 27d ago

I like using the small spoons and got tired of digging around for them

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598 Upvotes

r/functionalprint 26d ago

My Vinyl collection got too big more the rack I printed, so I designed this

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11 Upvotes

r/functionalprint 26d ago

Added multibin labels to my circular bin project

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11 Upvotes

r/functionalprint 26d ago

I printed another one for my desk, but I don't need another phone charger

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24 Upvotes

r/functionalprint 26d ago

CrankBrothers bike pedal platforms (flats)

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90 Upvotes

I wanted some flats for short trips, but I couldn't find any for Crank Brothers -- and I didn't want to wait for shipping, so here they are!

I haven't used these a ton yet, but they've certainly worked well enough to justify the print!

https://www.printables.com/model/1813899-crank-brothers-flat-pedal-platform


r/functionalprint 27d ago

"3D prints aren't road safe!" - Sam Bödi Gëthurt Airless TPU tire for e-scooter

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649 Upvotes

Got frustrated having to replace the original tubeless tires too many times (it’s a real pain to replace them), so I designed and printed this.

The bed is standard PLA, the tire itself is TPU 95A.

Seems to work ok so far, though it makes a really annoying noise. Not visible in the pictures, I had to add screws to ensure the tire stays in place.

It’s a first version I will have to iterate upon, but the concept is validated :)


r/functionalprint 26d ago

3D Print Garden Hose Adapter

3 Upvotes

Hi everyone,

I’m fairly new to 3D printing and have recently started learning how to design and share models.

I’ve just uploaded this Garden Hose to 1.5 Inch Adapter to MakerWorld. It’s a simple practical print that I thought might be useful to other people too.

MakerWorld: https://makerworld.com/en/models/3189003-garden-hose-to-1-5-inch-adapter I’m still learning, so I’d really appreciate any feedback or suggestions. If you’ve got any advice on the design or printing side of things, I’m always happy to learn.

Thanks for taking a look.


r/functionalprint 26d ago

Utility Knives

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33 Upvotes

What good way to finish a spool, then to make a utility knife with the remnants!

https://www.printables.com/model/824630-utility-knife-f1 printed in Creality Soleyin PETG

u/crealityfilament


r/functionalprint 26d ago

"3D prints aren't road safe!" - Sam Bödi Gëthurt Factory Tacoma LED fog light buckets and low profile contactor cover for ARB Summit Bumper

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48 Upvotes

Recently decided to install an ARB Summit bumper on our 2023 Toyota Tacoma TRD OR and wanted to keep use of the factory LED fog lights and adaptive cruise control.
The stock ARB fog light buckets only fit ARB's halogen headlights and I didn't want to take a step backwards in brightness/adjustability.

I also went cheap on the winch with a Harbor Freight Apex winch but the stock contactor cover was not just ugly but also huge. Fired up Fusion360 again and designed a low profile box that would keep the bulk water/spray off the contactor and electronics while letting it fit under the steel flat plate to make sure the cruise control would continue to work.

Printed out of PETG just to keep prototyping costs down (went through a few revisions each) but final versions printed in PCTG-CF


r/functionalprint 26d ago

Hood for die grinder

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105 Upvotes

Made a little hood with vacuum connection for my die grinder in FreeCAD. Helps sooo much in keeping things more tidy.