Tag Archives: Creality

Misc: Formnext 2021 Review

My first Formnext in 2019 I realized there was no way to explore the expo in 1 day only, so I reserved for Formnext 2021 (Frankfurt, Germany) 4 days fully (November 16-19). Although the expo was smaller than in 2019, it was still massive to explore. I’m not even sure I saw all of the 600+ exhibitors despite roaming the two halls (12.0 ground floor, 12.1 first floor and 11.0 ground floor only) multiple times.

Inhouse Developments: ZPlusSlicer & 5DMaker

I presented my inhouse developments of ZPlusSlicer and 5DMaker for the first time in public (otherwise just illustrated in About: Big Picture), as of November 2021, it’s not yet published or otherwise documented.

About 40+ samples I handed out and alike amount some brief documentation (on paper) on ZPlusSlicer and 5DMaker (5MF processor) – both in early stage of development, and the “overhang stairs” a proof-of-concept of the benefit of both new conceptual layers on top of traditional slicing. By spring 2022 I will publish more publicly on both products once they matured to Beta stage.

Notables

  • Ultimaker: they didn’t have any booth, yet their machines were placed at many booths, resellers kind of represented them – combination of dominance and absence
  • Makerbot wasn’t there
  • Markforged considers itself as startup but outsiders consider them as big player already – impressive integration of machine, material and slicer, yet, all closed down; hard(er) to integrate with 3rd party software
  • nScrypt micro-dispensing on cylindrical or spherical surfaces, PCB 3d printing and pick-place SMD components:
  • Krause DiMaTec showed its EDDY 3D printer, slow Z axis, but quite affordable at ~8K EUR for the machine with 600 x 600 x 600mm build-volume, and the 3D metal printed hotend was quite an eye-catcher:
  • Duplex3D printer: two nozzles starting to print on upper & lower side of the build plate, once reached some distance, the plate is removed (!!) and 3D prints continues in both Z directions (the front glass is very glaring so not many details, also the representatives didn’t want to me to take too close photos):
  • Prusa Research released its Prusa XL – a Core XY based printer, I took a few photos with a lot of small innovations:
    • 360 x 360 x 360 mm build volume
    • mechanical pressure-based Z calibration built into the printhead (nozzle probes mechanical on the build plate)
    • segmented heating of build plate, heat there where the part is located
    • new printhead with geared filament drive motor
    • optional tool changer
    • optional foldable air-draft prevention
    • pricing from 2.5K EUR to 3.5K EUR
    • pre-order, delivery Q2/Q3 2022 (!!)
  • Modix as sold by 3Dmensional:
    • 600 x 600 x 600mm build-volume
    • fully enclosed
    • DIY kit or fully assembled
    • pricing 3.5K EUR (kit) to 6K EUR (assembled)
  • TreeDFilaments: 55 different materials
  • Kimya: materials too, great (paper) catalogue with detailed information on how to print their filaments and use-cases

Formnext 2021 Impressions

People vs Companies

Although all the companies appear quite anonymous, if you spend more than just a few minutes, and are able to talk to some technical skilled people – aside of the sales representative – you will notice “normal” people with the same passion like you and me: 3D printing enthusiasts, who turned their hobby into a professional passion, either as a startup or joining a bigger company to explore 3D printing further.

The most worthwhile and interesting interactions were the ones I had with little business aim but technical exchange on new slicing methods and algorithms, new G-code extensions or pre-/post-processing, and new hardware designs in particular 4-axis approaches by different individuals and companies based on my slicing software and hardware designs they found via my YouTube videos – which was quite a revelation for me.

Covid & Expo

As of November 2021, Covid-19 isn’t over but I was glad to explore Formnext 2021 in person, a “2G event”, means, either one had to be vaccinated or recovered from Covid. The first days most people worn masks, by each day less and less – me included, as it was hard to talk with the mask on and hear each other properly even standing close to each other due the overall noise level in the halls.

Mood

Certainly the overall mood was great among the exhibitors and visitors as well – professional interest, respectful cordial interactions – less noisy than in 2019 which was more hectic due more visitors overall. Tuesday (1st day) and Friday (last day) had less visitors, whereas Wednesday and Thursday was quite overwhelming and significant more visitors.

At last, some impressions of Frankfurt (Germany) itself . . .

That’s it.

References

Infinite-Z CR-30 aka 3DPrintMill: Creality Acknowledges Prior Development & Commits to Open Source (2020/12)

As of December 2020, something remarkable has happened: Creality, a big chinese 3D Printer company has openly acknowledged and worked with western developers to bring forth a belt-based 3D printer.

Usually chinese companies have copied without acknowledge or give credit to development done by others like Adrian Bowyer or Josef Prusa, yet with the influence of Naomi Wu, a maker from Shenzen, Creality seemed to have been swayed to give proper attribution and even actively work with Open Source Hardware inventors to mass produce a belt-based 3D Printer.

CR-30 aka 3DPrintMIll by Naomi Wu with Creality (2020)

The past decades “Western Innovation vs Chinese Manufacturing” combo has been operating very well and brought many consumer products at low cost, including 3D printers.

Now, in this particular case, we see Bill Steele and Karl Brown (White Knight Printer) properly attributed in the 3DPrintMill Kickstarter page:

And even giving proper context of the overall lineage:

Lineage

All consumer 3D printers currently sold, build in some way on the work of Adrian Bowyer and his RepRap project- Open Source 3D printing. Some 3D printers iterate more than others, some are simply clones and claim innovations as their own that was in fact the community’s work. Others take only the broad strokes of an idea and build on it, improve it, and allow others to build on it further. For the 3DPrintMill (Creality CR-30) we have taken pains to involve and consult the talented individuals who brought the technology this far, and built on their work with their permission.

Bill Steele, who first demonstrated Infinite-Z FDM and DLP printers, and Karl Brown who created the first practical, Open Source kit so consumers could build their own Infinite-Z printer. Both Karl and Bill have given the project their blessing- and indeed, without them, it would never have been possible.

As said, this is remarkable and probably a new level of cooperation of Open Source Hardware movement and chinese manufacturers.

Back in 2010 I thought that the Open Source Hardware movement should actively seek cooperative alliance with chinese manufacturers instead just to complain – but this did not happen. Now in late 2020 it seems happening, thanks to Naomi Wu (Project Head for the CR-30/3DPrintMill), who made an effort to bridge the western innovation culture and chinese manufacturing culture – without a bridge, a canyon keeps villages apart.

Thanks also to Creality, namely Michael Tang (Co-founder of Creality), Steven Han (Brand Director), Zhou Yong (Product Manager), Lei Congjin (R & D Manager), Yu Xianhong (Project Manager) for the acknowledgment as expressed in the Kickstarter page.

Open Source Hardware Commitment

Additionally, and perhaps even more relevant is their on-going commitment to Open Source Hardware as expressed in this passage:

Bringing the 3DPrintMill (Creality CR-30) to life would need the resources of a full engineering team and a company with substantial 3D printer manufacturing experience. So a deal was struck, Creality would invest the R&D resources necessary to make the 3DPrintMill(Creality CR-30) real, and as soon as that expense was recouped, the entire product would be fully Open Sourced for the benefit of the community. When the 3DPrintMill (Creality CR-30) reaches 5 million USD in crowdfunding, the whole machine- CAD files, BOM, firmware, schematics, will be fully Open Sourced. Anyone in any country can make their own version, iterate and improve on it- leading to vastly accelerated development.

This is probably what many Open Source Hardware (OSHW) enthusiasts have been waiting for, one of the big player like Creality join the common OSHW efforts once more, after having released all plans of the Ender 3 in 2018 and giving an example for other companies.

Bigger Context

And I look at Apple, Microsoft, IBM, ARM, Intel, AMD and I wonder, with the Open Source ISA (Instruction Set Architecture) of RISC-V on the horizon, whether we are going to see the full stack of Open Source Hardware from the CPU design up to the PCB and final assembled computer (GPU, RAM, I/O); and if any of the big players take a moment, and look at what Creality did here?

Naomi Wu ranted away on Twitter with the following, which hits the nail about Open Source and Open Source Hardware is really about:

Software? Fusion360, Adobe Creative Cloud, John Deere tractors- a tradesperson can’t even own their own tools anymore. We’re all sharecroppers. Everything is rented.

Every single thing we own is being taken, put in the cloud, and rented back to us. Willingly. Because no one wants to know how to do anything beyond a narrow scope. We’re a world of carpenters willing to rent sharp chisels and saws rather than learn to sharpen them ourselves.

Although the rant started as people seemingly complained on the non-existing or poor customer support of Creality, her main argument is, rather have Open Source Hardware and a community helping each other, than a Closed Source without any control but good customer support – the rant actually targets the Software- & Hardware Sovereignty, which is behind all of the Open Source movement, that is the core issue: you are allowed, you are given the opportunity to improve what you bought, what you own, you can resolve the needs and requirements of your own use cases – personal evolution – and you contribute and help others by being able to share it again – collective evolution. And the mentioned companies, like Apple, or Microsoft, who have been locking up their hardware and software further and further, to improve usability and simplicity – and believe me, I have been an open critic of poor GUIs in Linux not able to catch up – but the price is high, loss of “digital sovereignty” as of software and hardware.

So, because companies are profit driven, they have to balance their own needs and requirements with the collective interest – and this is done in these statements:

Creality would invest the R&D resources necessary to make the 3DPrintMill(Creality CR-30) real, and as soon as that expense was recouped, the entire product would be fully Open Sourced for the benefit of the community.

When the 3DPrintMill (Creality CR-30) reaches 5 million USD in crowdfunding, the whole machine- CAD files, BOM, firmware, schematics, will be fully Open Sourced.

This is why I consider this an important and significant move, because a profit-driven company has actively and willingly balancing its own needs and requirements with those of the collective of the Open Source Hardware movement, and acknowledged that very product they are about to produce has been possible because of individuals like Adrian Bowyer, Bill Steele and Karl Brown.

Remarkable.


That’s it.

PS: If you are interested in early development 3D printers, see RepRap movement or general 3D Printer History.

3D Printer History (1980-2022)

Back in 1980’s the concepts of 3D printing were invented and implemented with

  • Stereolithography Apparatus (SLA) by Hideo Kodama (1980),
  • Fused Deposition Modelling (FDM) by Scott Crump (1988), who later founded Stratasys, and
  • Selective Laser Sintering (SLS) by Carl Deckard (1988).

Kodama developed the first 3D printer using UV light and curing resin, and filed a JPS56144478A patent (1980).

Kodama’s sample 3D print: ~50mm tall, 27 layers at 2mm thickness cured resin
(source Meidai Watch: 3D Printing & Nagoya University)

And so most approaches were secured with patents by companies like Stratasys, like the famous US #5,121,329: Apparatus and Method for Creating Three-Dimensional Objects (applied 1989, granted 1992) and others were thereby inaccessible for innovation outside of the patent holders and due the high pricing also inaccessible for users – a period of stagnation happened.

Once the patents expired (~2009), and that’s truly a lesson against patents, a surge of innovation occured and the prices for 3D printers fell from 100K+ USD range below 3K USD for the same functionality and print quality.

Adrian Bowyer, a british academic, coined the term of RepRap (2005), the replicating rapid prototyping and designing 3D printers which can print parts for itself: self-replication. Hobbyists started to adapt the design and push it further, since all plans were Open Source aka Open Source Hardware, it was easy to improve and iterate the designs. Eventually the Prusa Mendel as developed by Josef Prusa and reduced overall complexity and his next iteration was most significant: Prusa i3 (2012). This third iteration became quasi standard for low cost 3D printers for the next years and his Prusa Research company surged. See also RepRap Principle and RepRap.org Blog Archive.

  • RepRap Darwin: XY head and Z bed, threaded rods based
  • RepRap Mendel & Huxley: XZ head and Y bed, threaded rods based
  • Prusa Mendel: XZ head and Y bed, threaded rods based
  • Prusa i3: XZ head and Y bed, laser cut XZ frame

Josef Prusa summarizing his history 2010-2019, representing part of the spirit of the RepRap movement:

2009-2013: MakerBot & Thingiverse

US-based MakerBot was at the beginning (2009) a major driving force to the Open Source 3D printing community as partially funded also by Adrian Bowyer and his wife. MakerBot also runs Thingiverse, the major repository of free 3D models and designs for 3D printing. As MakerBot struggled with sales, after receiving Venture Capital and later bought by Stratasys (2013) it left the Open Source principle at the same time Thingiverse struggled since to stay functional (2019). In 2020 Thingiverse was given some attention, it seems now taken care of better.

  • CupCake CNC: Z head, XY bed, laser cut wood frame
  • Thing-o-Matic: Z head, XY bed, laser cut wood frame
  • Replicator 2: XY head, Z bed, metal frame

2011-2016: Kickstarter Hype

With the expiration of patents held by Stratasys and other companies (2009-), the surge for Kickstarter-based 3D printers began, sub 1000 USD printers became widely available, but also many failures and plain scams happened. Printrbot started as Kickstarter and thrived for a few years as US-based 3D printer company, also Snapmaker and FORM 1 by Formlabs made a successful debut, while sub 100 USD 3D printer like MakiBox, metal Eventorbot or slick Buccaneer failed at different stages.

2018: Year of Chinese 3D Printers

In 2016-2018 chinese manufacturers (Geeetech, Creality, Anycubic, FLSUN, TEVO, CTC etc.) started to develop Prusa i3-like machines and the companies started to copy each others parts and improvements at a rapid pace. As a result, many small US companies, like Printrbot, which contributed significantly to the Open Source movement, closed doors for good (2018).

A big game changer was Ender 3 as manufactured by Creality, priced at USD 150-200 incl. shipment, providing excellent printing quality, at a price which was hard to compete by anyone else. Notable was, Creality open sourced Ender 3 entirely, as the Open Source community built up pressure to chinese manufacturers which spit out each month a new Prusa i3 derivative (e.g. different build volumes, slight improvements of extruders etc) back in 2018/2019.

As a side note, the chinese manufactured 3D printer broke the RepRap principle and used other means to produce their parts, while Prusa Research has a 3D printer farm to manufacture their parts.

Prusa Research 3D printer farm (2018)

Western Innovation & Chinese Manufacturing

Mosquito hotend by Slice Engineering (2018) Closed Source, Patent Pending

It became obvious the past years (2010-2019), that true innovation still remained in the west, Czech-based Prusa Research, Denmark-based RepRap.me with Diamond Hotend (3-in-1 and 5-in-1), or UK-based E3D or US-based Slice Engineering with their hotends and extruder technology, and the chinese manufacturer which cloned or copied the Closed- and Open-Source designs within weeks and sold at fraction of the price as by the original inventors. Often chinese manufactures tried to simplify hotend designs and compromised significant features – to copy a design didn’t mean the design was understood.

E3D Hotend Timeline: E3D V4, V5, Kraken, Chimera, Cyclops, V6, Lite6, Titan Aero, Titan Aqua, Hemera (2013-2020)

As pointed out, Creality, one of the big chinese 3D printer manufacturer, started to adapt and join the Open Source Hardware movement, with the release of the Ender 3 source files and get properly certified – time will tell – as of end of 2019 – if they stay true to their commitment, and whether other chinese 3D printer manufacturer follow and become also actual innovators.

In late 2020 Creality announced a belt-based printer named CR-30 aka 3DPrintMill as a result of collaboration with Naomi Wu and acknowledging all the previous research of developers like Bill Steele and Karl Brown (White Knight Belt) the printer is based on – and renewed their commitment to Open Source the CR-30 – a nice development.

2021: Voron, Prusa XL, E3D Revo

A loosely organized Maker group developed various 3D printers under the brand Voron Design which gained momentum in the Maker community:

  • CoreXY (Voron 0.x, 2.x, Trident) or CoreXZ (Voron Switchwire)
  • sturdy well engineered frame design
  • tuned toward reliable and fast printing
  • properly documented (CAD models, bill of materials)
  • fully open source
  • no commercial frontend (no single store to buy assembled Vorons, only kits)

Voron printers became well-known in 2021 and widely adapted among people who wanted to build their own printers.

Various skillful Makers tuned the printer design toward very fast printing, high motion speeds and acceleration, to achieve 3D Benchy prints below 10mins at acceptable quality aka “Speed Benchy”.

Prusa XL (CoreXY)

At Formnext 2021 (November 2021) Prusa Research announced the Prusa XL, a CoreXY cubic frame 3D printer, with interesting features:

  • ability to sense blocked nozzle, indirectly by measuring bending of print head with a load cell
  • autoleveling done mechanically via same load cell
  • multiple heating zones in the build plate (only heat where part resides)
  • multi-material with optional tool changer
  • foldable curtain to maintain more regulated air temperature within the printer
  • build-volume 360x360x360mm
E3D Revo: different nozzle sizes (color coded) manually interchangable

Also in fall of 2021 E3D announced its new generation of print heads, Revo:

  • manual (un)mounting of print head without tools
  • nozzle and heatbreak combined
  • spring loaded tension of heat cartridge with nozzle
  • partially patented

2022: MakerBot & Ultimaker Merge, Bambu Lab’s X1

In May 2022 MakerBot, owner of Thingiverse and part of Stratasys, announced together with Ultimaker they would merge the coming months, and in September announced to become UltiMaker. MakerBot, who plays no significant role in regards of hardware development anymore, and software development being neglected as well, incl. Thingiverse lumping since many years.

Ultimaker became monetary successful the past years is also showing inertia in hardware innovation, resting on existing hardware designs, at the same time committed to push software development with Cura slicer with fine-tuning details of the slicer, and still doing most of it under Open Source, admirably.

Bamboo Lab X1

Another significant announcement happened in May 2022: Bambu Lab, founded by former DJI (drones) employees, worked the past two years on a new printer called “X1“, which has features hardly even seen in industrial 3D printers:

  • printing fast at 400mm/s with 10,000 to 20,000m/s2 accelleration
  • auto leveling (no manual calibration)
  • auto tuning pressure advance with LiDAR sensor
  • first layer analysis with LiDAR sensor, measure height and width of extrusions
  • video analysis of failed prints using built-in camera and AI
  • multiple materials (up to 16 spools/materials)
  • dedicated slicer (being open sourced later)
  • competitive price with USD 900-1500

The only downside is the rather moderate build-volume with 256x256x256mm, but they control that tightly unlike anyone before.

See also at RepRap Principle, RepRap.org Blog Archive and RepRap Magazine Archive to read about early RepRap movement (2000-2010).


That’s it.

Misc: Formnext 2019 aka “just too much for one day”

I decided to visit Formnext 2019 in Frankfurt (Germany) November 20, 2019. And to give you the essence first, it was too much – 800 exhibitors in two larges halls each with 2 floors – one day is not enough, and others told me, not even two days is enough to have time to absorb what has been shown at this exhibition.

Metal Printing: one of the huge topics of Formnext 2019 was . . . metal printing aka “no more plastic”, it seemed like the motto for 2019, in the corporate sense of it.

The printers were huge, car or even tractor sized 3D printers.

The kind of faceless corporate world:

Ultimaker booth

Ultimaker: So I spotted Ultimaker booth, and asked for “Daid”, nobody seemed to know, but “David” was known (as author and driving force of Cura) but not there, as he left the company 2 months ago I was told – either way, I spoke with Roger Bergs and expressed my gratitude for Cura being Open Source and he replied: “you know, we come from there, it’s part of our company culture” . . . nice to see such a commitment to the Open Source, especially compared to the next:

MakerBot: . . . and to my surprise, there was a mid-sized booth of MakerBot, the owner of the struggling Thingiverse, on the brink of collapse. After some brief delay, I was able to talk to Jason Chan, responsible for Thingiverse who was on site, and we had a brief talk:

MakerBot booth
  • I acknowledged the role MakerBot played in early days of 3D printer development in contrast to the later abandonment of the Open Source principle with the acquisation by Stratasys . . .
  • I pointed out how important Thingiverse was and still is for existing projects, which still reference the STL files on Thingiverse and if it were to disappear it would be devastating and break many projects out there (not all migrated to github or other 3D model repos)
  • further I expressed my experience about other the 3D model repositories being functionally inferior compared to Thingiverse
  • Thingiverse was unbearable slow and unreliable – Jason acknowledged and confirmed my concerns of the current functionality of the site
  • Jason responded as following:
    • only 2 web developers are assigned to Thingiverse maintenance as of 2019/11
    • there is a backlog or debt of problems unaddressed for the years and MakerBot is aware of it (to the public it seemed nobody cares at MakerBot)
    • Thingiverse is costly running it, and provides no (significant) income
    • there are commitments within MakerBot to reboot Thingiverse and fix all the backend issues and resolve the “slowness” of the site (that has been said before, nothing happened – just check @makerbot Twitter account)
    • development of a financially sustainable foundation for Thingiverse, means, to create income – how this is planned he didn’t wanted to reveal in more details
    • MakerBot kind of was surprised of the immense success of Thingiverse of the past years

Josef Prusa: While visiting Hall 11, I came across Josef Prusa walking alone, and I just briefly shared my admiration for his success by combining Open Source and business to a self-sustaining model. I later visited the Prusa Research booth, and it was packed with visitors and and catched this short video showing Prusa Mini in action:

BuildTak: Just a brief talk with Igor Gomes, about their new products and shared a bit of my stuff as laid out on this web-site.

Creality booth

Creality: . . . and there it was, a tiny small booth of Creality – 4 or 5 shy representatives sitting there, and I walked toward them and greeted them in english, and a smile rushed unto their faces (to my surprise), and I expressed my thankfulness of their move to Open Source the Ender 3 entirely, that this move or gesture really was acknowledged in the Open Hardware and 3D printing community in the “West”. In a way it was bizarre, there was this small booth, while in reality, this company had more impact than perhaps the rest of the exhibitors of the entire hall – nobody else ships as many 3D printers as this company as of 2019.

Misc Small Chinese Exhibitors:

Too little time to explore their products in more depth.

E3D Online: Just briefly glanced at their booth, as I watched already videos online of their tool changer, and I was already significantly exhausted.

E3D Online: Tool changing with metalbrush to clean the changing toolhead

NinjaTek: just passing by . . .

FelixPrinters: . . . also too little time and openness left from my side cut this visit short, but their printers looked very well thought out.

Belts

Printing Big

Misc Perls

Anyway, after 7 hours I was exhausted from all the impressions – it was too much of visual stimulis and constant noise – and I left the exhibition and headed back to Switzerland by train again, and arrive at midnight finally – it was worth my time.

That’s it.