Cel Robox RBX01 - High Definition 3D Printer

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11 reviews   Rating: 4/5.
Based on 11 reviews   |  Write a review

CEL RBX01 Robox - Dual Extruder and High Definition 3D Printer

Robox combines the best features of all the market leaders at a fraction of the cost.

More for less; Welcome to the future of micro-manufacturing!

Lead Time: 2 Business days. Shipping from USA

Robox® Key Features

Frame and Case Design:

The quality of printing is predominantly dependent on the resolution and accuracy of the motion axes. The printer must be capable of laying down accurate slices of plastic material layer after layer to produce a usable part. We have designed Robox® from scratch, ensuring the frame and motion systems are extremely rigid and accurately positioned. All motors and axes are attached to a single stainless steel frame which is a reference surface for all motion; this is rigidly attached to injection moulded parts which form the body of the printer to create a super-stable platform.

Speed – Dual Nozzle System:

Robox® includes a proprietary dual-nozzle system which can improve print speeds by up to 300% when set against our competitors. A single material feed can be directed out of one of two nozzles – with a 0.3mm or 0.8mm extrusion diameter. This means Robox® can produce highly detailed exterior surfaces for the surfaces you can see, and then quickly fill the object using the larger nozzle multiple layers at a time without affecting part strength or detail. This combined with a needle-valve system stops ‘ooze’ and ‘stringing’ from the nozzles – a problem commonly found in other printers. So now you can finally have the best of both worlds – a perfect high quality exterior finish with much faster print times!

Robox 3D Printer


Robox® Mechanicals:

Construction Methodology:

All of the motion axes are coupled to a single sheet metal part, reducing the need for factory calibration and ensuring that your Robox® is perfect for printing straight off the production line. The use of injection moulded parts combined with sheet metal components produces a very rigid structure, while allowing for a stylish consumer product.

Minimal Inertia:

By using a ‘Bowden tube’ extruder, we are able to keep the weight of the printing head to a minimum, allowing for much faster extrusion and travel speeds without affecting print quality.

Large High Torque Stepper Motors with High Resolution Axes:

We have over-specified the stepper motors for all the motion axes, meaning Robox® should be able to cope with all future head developments without a hitch. We have used 2mm pitch belt drives for X and Y axes and our own custom machined 0.5mm pitch Z axis screw. All of the motors are custom designed for the printer. This gives us the highest theoretical accuracy on the market, and allows us to achieve super-fine layer height.

Separate Build Chamber and Electronics Enclosure:

Due to the heated build platform, we can maintain approximately 50°C ambient temperature in the build chamber. This stable environment helps to maintain part accuracy and print quality by preventing uneven cooling. The problem with this feature is that this ambient temperature can be too hot for the motors and electronics which control the printer. These are all therefore outside the build chamber and actively cooled by outside airflow to keep everything running smoothly.

Automatic Build Platform Levelling:

One of the major problems with almost all available 3D printers is that the bed must be manually levelled to ensure the first layer adheres correctly. This is be a fiddly process which has to be regularly repeated – a source of frustration for other 3D printer owners! Well, we’ve solved that. Robox® uses a proprietary bed probing mechanism which can measures the location of the bed before every print. As both Z motors are driven independently they can be adjusted to ensure the X axis is always parallel to the print bed.

Extruder Construction and Feedback Loop:

The Robox® extruder contains the world’s first dual-pinch-wheel extrusion system. This allows for very consistent and reliable extruder operation with excellent resolution and control. The filament is fed to the head by two indexed contra-rotating feed wheels which are powered by a worm & wheel gearbox. This arrangement virtually eliminates the possibility of ‘stripping’ your filament, causing a loss of extrusion and poor print quality.

Pause and Resume!

The filament extruder incorporates a closed-loop feedback system which monitors the motion of filament as it enters the extruder, giving it the ability to instantly recognise extrusion issues. The software can pause the print if any error is found, allowing the user or firmware to rectify the problem without ruining the entire print. A long awaited feature on 3D printers is ‘resume’ – the user can restart the print and it will continue from where it left off. Another first for Robox®!

Nozzle Valve System:

Another problem typical of 3D printers is ‘ooze’ -the stringing and over extrusion at the end of a section of printing. This happens due to the low viscosity of molten plastic. In most printers, this is solved by what is known as a ‘retract’, where the filament is rapidly reversed in conjunction with a very small melt chamber, however this is not always effective. Robox® overcomes this problem through the use of a needle-valve system which completely closes the nozzles at the point of extrusion, removing all stringing and ‘blobs’ from the part – resulting in an amazing surface finish. Because viscosity can be managed by the needle valves Robox is able to use a much wider range of materials than any other 3D printer.

Automaker 3D Printing Software

AutoMaker is the software used to layout your models, view the status of Robox and adjust the settings used during a printing or other operations. AutoMaker is available to download and can be installed in most languages on many operating systems including Windows, MacOS and Linux.

Without a Robox attached there is limited functionality, a user can load a .stl or .obj file and manipulate it. Connect a Robox to allow printing in Draft, Normal, Fine or Custom within 3 very simple steps. Opening the Advanced Tray enables a huge array of settings, each is clearly described and sorted into easily recognisable sections. Save custom settings if you want to repeat a print or share it with other users.

Custom print settings are saved as text based .roboxprofile files in the users documents folder and a PrintJobs folder is created containing all the settings and code used for every print that is created. The goal from the beginning with AutoMaker has been to make 3D printing easier, we want users to concentrate on designing parts to print, not needing to fiddle with the print settings to try to get a result.

Our default settings are tried and tested using our filament and allow even a complete novice user to get a repeatable and consistent result every time. Advanced users have all the control required to satisfy even the most complex print jobs and are able to easily share their custom profiles with all of us.

Robox 3D Printer Comparison



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Technical Specifications
Print size ( X Y Z ) 210 x 150 x 100 mm
The Layer Thickness 0.02 mm
Layer Resolution 20 microns
Filament Compatibility ABS, PLA, HIPS, PETG, CO-PET and Nylon
Filament Diameter 1.75 mm
Nozzle Diameter 0.3mm and 0.8mm
Print Plate (Build Platform) Heated Build Plate
Power Requirements 230 V / 120 W
Connectivity (Interface) USB
3D printing Software Automaker
CAD Input data file format supported .stl and .obj.
Client Operating System Windows, MAC and Linux
Machine Dimensions 370 x 340 x 240 mm
Machine weight 8.4 Kg
Shipping box weight 12 Kg
Lead time 2 Business days
Shipping Location USA
Manufacturer Warranty 2 Years
| 11 reviews
<p>This is not my first 3D printer and probably won't be my last but it will be the one I use for the foreseeable near future. I inboxes this thing and had it printing in no time. I'm not sure it is %300 faster than the competition, but it is a noticeable leap ahead. I will make this short and sweet,</p> <p>Pros:</p> <ul> <li>Device Quality.</li> <li>Well planned/designed around plug and play.</li> <li>Speed.</li> <li>Print Quality.</li> <li>Dual extruders.</li> </ul> <p>Cons:</p> <ul> <li>Cost.</li> <li>Misleading dual feedstock fillament port.</li> <li>No manual open close button.</li> <li>Print bed size.</li> </ul> <p>Normally I would give this a 4 start but once you normalize against the competition and realize how far ahead this unit is, for now it will remain a 5 star.</p>
| 11 reviews
<p>This printer is a major disappointment for a few reasons. Before I even jump into my review, I want to say that the Amazon reviews and the message boards over at CelRobox seem hit-and-miss and you've got about a 50/50 shot at getting a model that works just fine.</p> <p>Install:</p> <p>Initial set up is pretty easy; just plug it in via USB & connect the power cable and you're set. There is some software to install on your computer before you get started and this is included on the USB thumb drive from the packaging or as a download from their website. Once this is installed and the printer connected, a pop-up for registration should happen. It did not for me. I continued forward.</p> <p>Printing:</p> <p>There are a few test files that come with the printer, so we chose one - an espresso cup - and followed the directions for printing. We got the filament loading into the extruder head and the reel setup to go but then it would give the error 'no print head detected', prompting me to attach a print head. The printing head was clearly connected and I could not find instructions for resetting this or troubleshooting something like this.</p> <p>I decided to eject the reel and start over. I probably didn't follow every single step all the way through. Load the filament back into the extruder and it takes, but this time when I try to attach the smart reel, it no longer recognizes this either.</p> <p>Troubleshooting:</p> <p>The owners manual has little help on troubleshooting and goes over basic information, but isn't super helpful. Turning to the message boards finds little help from the company and lots of help by one or two folks in particular who just seem to be particularly skilled and helpful.</p> <p> My next step is an email to customer service to see about the issues. At this point, I can't really say that I like this product, but that could change in the future. I'm in this for the long haul and will update the review as my journey continues with this.</p> <p> For what it's worth, the errors were duplicated entirely on two different computers.</p>
| 11 reviews
Had to return mine after first print attempt. The printer is stylish and has features which really attracted me (Self leveling plate & no tape or applicant for bed, self feeding extruder) but it just clogged up and then would not eject the filament during first print attempt. I researched a bit on the forums and it mentions that Robox early models had this issue and the manufacturer replaced the heads in later production models. My concern is Amazon has no way of telling me if I got old batch of upgraded model from them. I returned it which was a pain, repack and wait for confirmation of receipt prior to crediting account or replacing. I chose replacing to give Robox one more shot to get it right. I will repost review follow up once replacement u it arrives and I test it. Fingers crossed otherwise, will spend more and get ultimaker 2.
| 11 reviews
<br/>I've owned a CEL Robox now for a few weeks and I can unequivocally say that it is an outstanding 3D printer. Initial setup was quick and easy. The manual and software are easy to understand, the software installs fast, the machine automatically updates itself and starts right off. It prints quite well. <p> So far I've not printed anything that I've created from scratch but overall it works quite well. Has it been totally issue free? No, I had a few issues initially. Some were simply N00b issues on my part and a few were some setup issues that could be made a bit more clear on the part of CEL but there was nothing that was a deal killer and nothing that was not answered swiftly, completely by CEL support. </p> <p> I'm fortunate that I happen to live in the same city where the tech for North America for CEL lives so my support was even faster in that I could visit the local tech to answer questions but there was really nothing that could not have been quickly handled via email or forum. The CEL forum is outstanding.</p> <p>If you think getting ANY CNC machine, be it a 3D printer, Mill, Cutter, etc. is going to be a plug and play fire and forget experience then you are in for a rude awaking. That there are calibrations, maintenance and setup things that need to be done goes without saying. </p> <p>CEL has excellent support and the product that I received and I now print with is a quality product. If you are considering purchasing a 3D printer and you are turned off by some of the 1 star reviews on this printer, take into consideration when those reviews were given. They are mostly early 2015. The issues with the initial release of this product, IMHO, have been resolved and what is shipping now is a quality product.</p>
| 11 reviews
Easily the best 3D printer available. I have an Ultimaker2 (last years best) and a self build Prusa Steel and this Robox is both easier to use and more reliable than both of them. Consistently producing excellent prints even while I swap materials constantly to run my 3Dhubs business, this printer absolutely deserves it's top stop in the 3dhubs print quality comparison. Oh and the price! I could get 2 Robox or 1 of any of its competitors, actually, I think the orders I am getting for 3D prints is sufficient to pay for another one now.

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