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Screws look beautiful and I like to make them visible in products, but I have to admit that those hidden ones have some style too! It's based on a spring loaded mechanism and were invented by Jeff and Brandon Serle, who are cleanroom engineers.
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OCCT 8.0 (aka Open Cascade Technology) is out! It's the CAD kernel used by many projects such as @freecad, #CadQuery , #build123d or even @kicad ! It has wrappers for STEP and IGES and can use BRep topology representation. A very important open source tool for the hardware world!
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VOC calculator including detailed information by Heatforge3D :
➡️ https://heatforge3d.com/en/pages/3d-printer-voc-calculator
Based on peer-reviewed research data on 3D printers VOC emission.
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Source via @fabbaloo -
#preFlight is a new open source slicer by oozeBot based on #PrusaSlicer but with deep rework of its internal code.
- Truely 64bit
- GCode processing in memory
- Athena perimeter generator improving over Arachne
- Interlocking perimeters similar to brick layers
- Deeper #RRF integration
- . . .GitHub: https://github.com/oozebot/preFlight
Feature list:
https://github.com/oozebot/preFlight?tab=readme-ov-file#exclusive-featuresFeature Showcase:
https://github.com/oozebot/preFlight/discussions/categories/preflight-features---
Source via @fabbaloo : https://www.fabbaloo.com/news/oozebot-launches-preflight-slicer-rebuilding-prusaslicer-on-a-modern-64-bit-architecture
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Dave Randolph, creator of PrintedSolid has resigned from its CEO position and departed. Prusa is now taking the lead.
Dave, if you read here, thank you very much for all the great and hard work. Thank you for having trusted my project and sold many Bear frame kits. I wish you all the best for the next steps 💫
More info: https://techhub.social/@fabbaloo/116046895268921557
#printedsolid #jessie #filament #3dprinting #prusa #bear #bearupgrade @printedsolid
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This work by Dennis is amazing!
➡️ https://hackaday.com/2025/12/22/calibrating-a-printer-with-computer-vision-and-precise-timing/I think it's absolutely useful for 3D printing but we should also improve our designs to reduce variations. Yes this is possible given the current cost of DIY machines; some parts of the printer would become cheaper, while others would become more expensive. For example, CoreXY is a fairly inaccurate motion system, maintenance level is on the higher side and it uses a lot of parts. ⤵️
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@stargirl has simplified the Open Community License (OCL) from Prusa
➡️ https://github.com/theacodes/socl#3dprinting #prusa #ocl #socl #OpenSource #copyright #openwashing #opensourcewashing
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It's true, PLA-CF is mostly useless, it's hard to find an advantage over regular PLA. "I built a thing" shows what happens in details with electron microscope and CT scanner as well as physical testing. Impressive images!
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This is the internal design of the future E3D high speed nozzles, called the FUGE! Unlike the CHT ones, there is no more channelling. Instead, the filament core is warmed up by flattening its path while maintaining the same surface area throughout. This is the application of an E3D patent from 2020. ⤵️
#3dprinting #e3d #e3donline #patent #highspeed #nozzle #fuge @e3donline
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AnyCubic has achieved an impressive level of integration with its Kobra X 3D printer. It doesn't require an AMS-like system with motors; it can handle everything in the toolhead! It also features an automatic filament gears tensioning system.
I want to see a teardown now!
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E3D launched ObXiDian 500, a new wear resistant and non-stick technology for 3D printer nozzles that can withstand temperatures of up to 500°C. The fabrication process is impressive, read more about it on their blog!
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DasFilament has launched a recycled PETG filament made from film production waste. This rPETG has the same properties as their standard PETG and has been specifically designed to produce unique colour changes. It is available in spools and refills.
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A classy full black Bear by Leger.
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Instructive video from Angus of Maker's Muse about Z seams. If you don't know what it is or how to hide it then this video is for you!
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Oh no, Openbuilds goes out of business 😓
The CEO Mark Carew invented the V-Slot extrusion in 2013. We use them on the Bear because the V shape offered an easy alignment during the assembly and more flexibility for the printed parts (no support needed).
Everything must go, check them out:
https://us.openbuilds.comThank you Openbuilds and the community for those 12 years 🙏❤️
#openhardware #openbuilds #vslot #extrusion #opensource #osh #opensourcehardware
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A good video from "I built a thing" that may surprise you about carbon fibre filaments. Their only advantages are probably appearance and reduced shrinkage.
In addition to poorer mechanical properties, they may also be carcinogenic!
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Quote:
"Unlike G-Code, which executes tasks line-by-line, T-Code uses time to synchronize the 3D printer’s motion with key commands [...]. This eliminates common start-stop interruptions that slow production and create defects, enabling continuous, uninterrupted fabrication. As a result, 3D printing becomes faster without losing accuracy or detail, facilitating advanced capabilities like smooth gradients and in-situ material changes." -
Brick style layers to increase layer bonding has been made open source by TenTech and is available for PrusaSlicer and OrcaSlicer.
Source: https://github.com/TengerTechnologies/Bricklayers
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Interesting printing process on the new Bosch Industrial 3D printer. The machine loads pellets, melt them and inject it into the print head. Another print head with a different technique is used for the support material.
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How to make an aluminum extrusion without extruding :D . Satisfying to watch!
Source: https://x.com/gunsnrosesgirl3/status/1838513221478617129
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RepRap Firmware RRF 3.6.0 beta 1 has a new input shaping algorithm that can be applied to any type of move just like Klipper.
➡️ https://github.com/Duet3D/RepRapFirmware/releases/tag/3.6.0-beta.1
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Super interesting and promising results on increasing tensing strength and modulus of PLA with cellulose. It is not only a biodegradable filler but also there are no risk of being potentially carcinogenic like carbon fibers. Looking forward to test such filament!
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I've done lots of testing on nozzle fan ducts and I have found a recipe that works for me. However, I've never tried CPAP or berd air (pump), so I will speak here for blowers as a source of airflow.
Image credit: Nozzle fan duct of BearExtruder V1 generated by Keith Bennett https://x.com/thisiskeithb
A small thread ⤵️
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I wish we could find a better solution than grub screws for attaching pulleys to shafts in 3D printing. Small-scale requirements make it difficult to use other industrial systems.
Grub screws often loosen under the effect of vibration even with Loctite. They also introduce eccentricity. And the tip of the grub screws marks the shaft, making it difficult to remove the pulley.
Any idea how we could improve this?
#3dprinting #3dptech #3dprinting_tech #pulley #motion #belt #grub_screw @3dprinting
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One of the most interesting 3D printing tech video I have seen in a while. Building an extruder isn't just about push force and weight, it is a lot more complex. To the point it is really difficult to make an in depth review. We can see how advanced E3D is in their R&D. Also, some good questions from Stefan and Tom.
"Did we do a bad job in testing extruders? (feat. E3D) - The Meltzone Podcast Ep73"
📽️ https://www.youtube.com/watch?v=9gslzdu5ELY
#3printing #3dprinting_tech #3dptech #extruder #e3d #hotend #roto
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#E3D is now ISO 9001 certified, and that's great news for our 3D printing tech!
ISO 9001 means
- Continuous improvement
- Rigorous quality control processes
- Productivity gains
- Globally recognized certification of quality and customer satisfactionMore about ISO 9001:
https://www.iso.org/standard/62085.htmlLink to the certificate:
https://cdn.shopify.com/s/files/1/0259/1948/8059/files/ISO9001_Certificate_1.pdf#3dprinting #e3d #e3donline #hotend #extruder #iso #iso9001 @3dprinting
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Why is the belt moving up and down?This is generally due to 4 things:
- Angular misalignment of the pulleys/idlers
- Parallel misalignment of the pulleys/idlers
- Belt quality, wear and type
- Pulleys/idlers quality and wearIt is also good to know that long belts have the teeth cut at a very small angle which could also increase this phenomena.
#3dprinting #machinedesign #belt #timingbelt #corexy @3dprinting
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Today, it's hard to find a 3D printer motion system that isn't capable of fast printing with both light or heavy extruders. I wish the motion type would stop being an important selling/marketing point.
Focusing on the quality and testing of the design itself is a more important aspect.
For example, thermal expansion, scalability, ease of building, hardware quality, low maintenance could impact a lot more than the motion system itself.