3D printed tube bender

Free STL file Tube bender for small tubes・3D printer model to download・Cults

3D Printed LTD Stirling Engine

Free

CR-10 / Ender3 DTI holder for bed alignment

Free

CR 10 Z Axis Manual Adjustment Knob and Bearing.

Free

CR-10 / Ender3 Ball Bearing Filament Support Spool Holder

Free

Sand Rammer

Free

Cast aluminium flasks for metal casting.

Free

JGAurora A3S DTI Holder for Bed leveling

Free

JGAurora A3S Ball Bearing Spool support

Free

Best 3D printer files of the Tools category

Spinning Filament Holder

€1. 44

Harry Potter Bookmark

Free

Anchor (W) filament clip

Free

Upright Filament Holder

Free

QAV250 TX mount

Free

IKEA LAK shelf 3d Printer Filament Holder.

€1.92

Nebula Series Printing Drybox

Free

MAKER'S VALET - Tape dispenser and Cards/parts holder

€2.46

Best sellers of the category Tools

UNIVERSAL INDICATOR FOR BED LEVELING FOR ALMOST ALL PRINTERS

€2.87

Scissor Paint Rack

€5.30

ARTEMIS -> Magazine for Alligator 2 || 6.

5" Arrows || Repeating crossbow

€6.25

The Business Card Embosser System

€3

phone ring holder

€0.90

ENDER 3 S1/PRO SPRITE, 4020 FAN CR TOUCH NO Y OFFSET

~~€1.96~~ -15% €1.66

Ender 3, 3 V2, 3 pro, 3 max, dual 40mm axial fan hot end duct / fang. CR-10, Micro Swiss direct drive and bowden compatible. No support needed for printing

€1.62

SUPERBOX

€1.50

BMG E3D V6 Direct Drive for Creality Ender 3 (Pro/V2) & CR-10

€4.49

Fire Hydrant Stash Container

€1.92

Ender 3 S1 Fan Duct for stock Fan

€1

Armadillo - Flex Wire Conduit

~~€1. 72~~ -50% €0.86

Cut-Man - PET bottle cutter with handle!

€3.49

Printer Drawers For Ikea Lack Table

€1.99

Spartan 4mm Hex tool bit holder

€1.80

Fast-Print Paint Bottle Rack (6 Sizes)

€2.91

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You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

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Free STL file Water Cooling Hard Line Tube Bender Tool・3D printer model to download・Cults

Curse D20

Free

Remix Baby Yoda as keychain or earring. Credit to jamesjenuwine

Free

Skull Keyboard Key

Free

The One Ring LOTR

Free

1/4 20 Camera Screw

Free

Mini Yoda Keychain Remixed from itech4dP

Free

Pot weed charm earring logo symbol keychain

Free

Remixed Mini Darth Vader from itech4dp into Keychain

Free

Best 3D printer files of the Tools category

Rostock (delta robot 3D printer)

Free

AFINIA Tools Stand

Free

Holders for Citadel paint pots and brushes

€1. 50

Hex Key Wrench for Emmett's Gear Bearing

Free

Multiplication Table for learning

€2.42

The Air Blower V2 for DeWalt, Makita & Milwaukee 18V-20V batteries

€3

3D-printable generic cabinet knob

Free

Multitools organizer

€2.50

Best sellers of the category Tools

FLSUN v400 display holder

€4.99

3D Printer Tool Holder V3.0

€1.06

Ender 3 S1 Fan Duct for stock Fan

€1

ENDER 3 S1/PRO SPRITE, V3 AIR DUCT 5015 OR 4020

~~€2. 49~~ -15% €2.11

Chill Buddy Lighter Case

€0.95

SUPERBOX

€1.50

3D Printed Strain Wave Gear (Harmonic Drive)

€4.99

phone ring holder

€0.90

PRECISION CALIPER 3D PRINTING DIY

€3.11

Armadillo - Flex Wire Conduit

~~€1.72~~ -50% €0.86

Spartan 4mm Hex tool bit holder

€1.80

Fire Hydrant Stash Container

€1.92

ARTEMIS -> Magazine for Alligator 2 || 6.

5" Arrows || Repeating crossbow

€6.25

Scissor Paint Rack

€5.30

Fast-Print Stackable Parts Bins / Storage Boxes

€2.91

BMG E3D V6 Direct Drive for Creality Ender 3 (Pro/V2) & CR-10

€4.49

Would you like to support Cults?

ADVERTISING: Disable your AdBlock banner blocker and click on our banner ads.
AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon.
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STL File

KRUSTY SURPRISE BOX

1,25 €

MONKEY FLEXIBILITY "PRINTING IN SITE

1,25 €

MEGABOT BIG HERO 6

1.25 €

Symbol of the Deathly Hallows + 3 wizards

1.25 €

Treasury of Meliodas

2 €

Climbing hangers

1,25 €

Rhombicosidodecahedron 3D puzzle

3 €

RETRACTABLE SAMURAI SWORD 2.

2 €

Best 3D printer files in Game category

bUbble shOOtter

Free

Puzzle 15

1 €

Deactivated

Boss Gitz in black armor

Free

3-in-1 HO scale 1:87 railroad wagon

Free

Mercedes Benz AMG GTR

5.47 €

Super Mario Tree Star

1.15 €

Marble Run Compatible 2 to 1 Pachinko Board 01

Free

Bestsellers in the Game category

Lev Fu

5.50 €

Altair Amberwatch

9. 61 €

Good flexi dragon

1.77 €

Vodfolk Explorer

9.61 €

Voidwalker Exosuits Truescale

14.83 €

Flying unicorn

1.05 €

Bicycle

1.40 €

Snake and rattlesnake

3.83 €

Catafrac Heavy Armored Warriors - Civil War Wargear Pack

~~€2.50~~ -thirty% 1.75 €

Chopper motorcycle print-in-place

1 €

Articulated dragon

3.83 €

Hrafnagud and ROKSS divisions

9. 61 €

Off-road vehicle

2 €

Catafrac Heavily Armored Warriors - Limb Set

~~€1.85~~ -thirty% 1.29€

Beaky Boyz Builder: PF_MK-Six

~~€12.01~~ -fifteen% €10.20

Jarl

6.72 €

Do you want to support Cults?

Do you like Cults and want to help us continue our journey on our own ? Please note that we are is a small team of 3 people, so supporting us in maintaining activities and creating future developments is very easy. Here are 4 solutions available to everyone:

ADVERTISING: Disable the AdBlock banner blocker and click on our banner ads.
AFFILIATION: Shop online with our affiliate links here Amazon.
DONATIONS: If you want, you can donate via PayPal here.
* INVITE FRIENDS: * Invite your friends, discover the platform and great 3D files shared by the community!

Unique Pollen based 3D printing material

Researchers at Nanyang Technological University (NTU) have developed a 3D bioprinting ink with sunflower extract that could kick-start a new generation of biomedical devices.

Unlike conventional malleable bio-inks, pollen-based bio-inks can be configured to be more rigid so they can be 3D printed into structures without losing integrity between layers. Scientists who have already used their inks to create scaffolds for tissue regenerative cells now believe they have significant potential in tissue engineering, toxicity testing and drug delivery.

“Bioprinting can be challenging because the material of the ink used is typically too soft, meaning that the structure of the intended product can break down during printing,” explained study co-lead author Cho Nam-Joon. “By tuning the mechanical properties of sunflower pollen, we have developed a pollen-based hybrid ink that can be used to print structures with good structural integrity.”

“Given that there are many types of pollen, pollen microgel suspensions have the potential to be used to create a new class of sustainable 3D printing materials.”

Chart depicting researchers' pollen-based 3D printing method. Image from Advanced Functional Materials magazine.

Bioprinted Reinforced Hydrogels

Due to its inherent ability to incorporate living cells, Direct Ink Writing (DIW) 3D printing is an increasingly popular means of creating biomedical devices such as tissue scaffolds. Similarly, hydrogels are often used in DIW because they are customizable, they facilitate cell attachment, and are able to accurately mimic biological tissues.

However, according to NTU researchers, hydrogels also have low mechanical stability and bioinertness, requiring the creation of "hybrid" inks that "provide functions and properties unattainable by any hydrogel."

In the past, some scientists have found that integrating nanofibers or nanoplates into hydrogel bioinks strengthens them and prevents printer nozzles from clogging. Others have developed support matrices made up of hydrogels, cells, and rubber that help keep printed structures in place before they are fully cured, as well as provide increased stability and resilience through recycled ingredients.

Inspired by the latter, the NTU team created a suspension of microgels from renewable pollen grains. The scientists argue that given its uniform size and regulated and consistent rheological behavior, the pollen provides ideal support matrices, and its ability to respond to stimuli could give it potential drug delivery capabilities.

Researchers have developed two different inks, one for cell loading devices and the other for biomedical support. Image from Advanced Functional Materials magazine.

Pollen-Based Biomedical Devices

To create their new bioink, the researchers started by using a soap-making method to turn sunflower pollen into a microgel suspension. This substance was then mixed with alginate, rubber and hyaluronic acid, resulting in a mixture of pollen grains with a softer outer layer than usual, which allowed them to be compressed in the printer nozzle without jamming.

In fact, during early testing, scientists discovered that they could extrude their bio-ink with any given amount of pollen content without clogging up their 3D printer. After demonstrating the initial viability of their material by creating multilayer microstructures, the team then proceeded to fabricate dye-loaded scaffolds to evaluate its drug delivery potential.

Interestingly, the amount of dye released during these experiments varied over time, so due to sensitivity to pollen stimuli, the bioink can be tuned to release drugs according to the dosages for a particular patient. Given that pollen is also biocompatible, the researchers were also able to load their scaffolds with cells, creating a five-layer structure that demonstrated 94% cell viability.

The scientists 3D-printed their ink to create an 'elbow mesh' with 'good structural fidelity'. Image from Advanced Functional Materials magazine.

Finally, the team increased the rubber and alginate content of their inks to test their ability to produce more traditional biomedical devices. In practice, this meant creating a device in the form of a silicone rubber dome, which, according to the scientists, “demonstrated good structural accuracy” and “improved print resolution” thanks to the pollen base.

The researchers intend to further optimize their slurry by improving its recyclability after several heating cycles, but they already see it as a viable way to avoid jams during 3D printing, and given its stimulus-responsive behavior, they say that it could be an "abundant and readily available source material" for future biomedical applications.

"Our findings could open up new possibilities for creating flexible membranes that precisely conform to the contours of human skin, such as wound dressings or face masks," said study co-author Sun Juha. “Using our biocompatible, flexible and low-cost inks, we can make membranes that are tailored to the contours of human skin and able to flex without breaking.”

As the 3D printing industry continues to search for sustainable alternatives to oil-based polymers, scientists are increasingly turning to Mother Nature for answers. For example, researchers at the Portuguese University of Aveiro and the Institute of Materials of Aveiro have recently developed a bamboo-based ABS material that they say produces "higher quality parts."

At the German Federal Institute for Materials Research and Testing, scientists have turned to insects by turning termite waste into a unique inkjet binder. Although the raw material has shown a low level of strength, the developers claim that in the future it can be used to create high-precision filigree structures.