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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.
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!
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.
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.
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.
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.
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.
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.
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®!
Another problem that we have solved 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.
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 materials are supplied on a SmartReel which holds data about temperature settings, print speed, diameter and even the amount of filament which has been used on that reel. As a user this makes printing very easy, you load the filament and AutoMaker will automatically change to the settings saved on the reel. Robox currently allows users to print in PLA, ABS, HIPS, Nylon, PC and PVA but we are constantly testing more materials. Data on materials and Material Safety Data Sheets (MSDS) are available on our materials page and will be revised and added to as information becomes available. Each release of AutoMaker™ includes the latest filament profiles for each filament, these are updated automatically when an unmodified Robox SmartReel is loaded. We and our users can also share the Filament profiles we create for materials not supplied on a SmartReel, these Filament Profiles are text files ending with “.roboxfilament”. Robox is able to use filament from any brand, we do not lock you into our SmartReel system. Obviously better quality filaments will give consistent results. To use another 1.75mm diameter filament you can just feed it in and tell Robox to get the filament data from a file rather than reading a SmartReel. You can download this file or create your own by copying the default Robox profiles and editing them within AutoMaker or via a text editor. You can also write your saved .roboxfilament data to a SmartReel at any time.
Build Volume: This is the maximum size of object that can be printed in one build. Although a large volume is desirable a smaller print will always have a higher accuracy.
Best Layer Resolution: The thickness of each printed layer. Thinner layers mean more detail and accuracy.
Extruder Support: Additional extruders allow secondary print materials or colours.
Nozzle Diameter(s): The size of the material that is extruded from the nozzle effects accuracy and print time.
Automatic Bed Levelling: Bed levelling is a fiddly and time consuming problem for most 3D printer users.
Automatic Material Recognition: This allows the printer to set a huge range of print parameters without the need for user input.
Pause / Resume Prints: Vital to user sanity. If a print takes 3 hours and runs out of material in the last few layers a resume feature allows the print to continue where it left off.
Heated Build Platform: Some materials require a heated bed to ensure they stick to the surface and do not cool too quickly for good lamination.
Draught-blocking Enclosure: The temperature of the extruded filament is vital for layer lamination and controlled material shrinkage.
Replaceable Print Head: Swap for an upgraded or replacement head, or perhaps another type of material manipulation.
Internal Lighting: Watch your design appear in front of your eyes and get visual feedback from the printer.
Material Compatibility: What can I print with? Why would you limit yourself?
Assembled: Some printers need an engineering degree and a pot of luck to assemble and configure.
Software: Included software, makes the printer print. Should be dedicated and tuned your specific printer.
WiFi/Remote Connectivity: How the printer communicates.
Supported Operating Systems: Will it run on your system?
Price: Obviously some printers are seriously overpriced.
1st Layer: This is the first layer of plastic which is laid down on the build plate at the start of a print. It is the most important layer of a print, as it used for adhering the part to the bed.
3D Model: A mathematical representation of the three-dimensional surface of an object (in the case of Robox®) constructed using triangles, also known as a mesh. There are many file formats for this, with Robox® accepting .stl and .obj.
3DP: Abbreviation of 3D Printing
ABS: Acrylonitrile Butadiene Styrene, a thermoplastic used as a 3D printer material. It produces tough, impact-resistant parts which make excellent functional prototypes. It can be tapped, sanded, painted and vapour polished allowing for high quality finishing.
Accuracy: Generally used to describe the theoretical accuracy of the motion system. This is calculated from the step accuracy of the stepper motor used for control and the pitch of the leadscrew / belt. See section X.X for accuracy specifications.
Acetone: A colourless, flammable liquid also known as propanone – a solvent which will dissolve ABS and can be used as a cement for gluing parts together. It can also be used for ‘vapour smoothing’ see section X.X.
Additive Manufacturing (AM): The process of constructing an object by selectively adding material, rather than starting with a block of material and cutting away what you don’t need – see subtractive manufacturing
Ambient Temperature: This refers to the air temperature inside the build chamber during the print. Maintaining this at a stable temperature can help to reduce warping of parts as they are produced by encouraging even cooling.
.AMF: AMF serves is an alternative to the STL file format based on XML which supports units, colour, textures, curved triangles, lattice structures, and functionally-graded materials—features that the STL format does not support.
AutoMaker: The included software package which is used for controlling all elements of your Robox®, including printing, layout, calibration and maintenance.
Axis (Axes): Describes a single direction of movement in a 3-dimensional coordinate system. X axis runs left to right, Y axis is front to back and the Z axis represents what would typically be considered “vertical”.
Backlash: Sometimes called lash or play, it describes the ‘slack’ in a mechanical system. In the case of the pulleys and belts, it could be caused by the tooth profile of the belt not matching the pulley, or by the pulley being loose on the shaft which drives it.
Bed: The surface at the base of the 3D printer on which parts are actually made. Robox® has a removable ThermoSurface build plate to allow for easy part removal.
Belt: The toothed gear belts which are used in conjunction with a drive pulley to transfer movement from the motors to other parts of a machine. Usually fibre-reinforced to prevent stretching.
Bowden Tube: This is the tube which delivers the filament to the print head. It is manufactured from PFA/PTFE to reduce the friction on the internal surfaces while maintaining flexibility.
Bridge: This refers to a feature in the printed object where an unsupported flat surface is produced by essentially printing ‘in thin air’. It is achieved by moving the printhead more quickly, and bonding the extrudate to either side of the gap so that it is stretched and can cool before it begins to ‘sag’.
Brim: ‘Brim’ is a term applied to 3D printing which describes a large flat area which is printed around the part to help with bed adhesion and warping – like the brim of a hat. See section X.X.
Build Chamber: This is the enclosed area of Robox® where parts are produced, and is designed to maintain the ambient temperature and prevent draughts from affecting the quality of your print.
Build Envelope: This refers to the maximum dimensions of an object which can be produced with Robox® – 210x150x100mm (LxWxH)
Build Plate: See bed.
CAD: Computer Aided Design – used for designing objects.
Calibration: The mostly automated process of adjusting software parameters in AutoMaker™ to take into account any differences in the manufacturing/assembly process of Robox®. See section X.X.
Carriage: This refers to a moving assembly which is constrained to one axis – Robox® has 3 – the Z carriage which holds the X motor and rails, the X carriage that holds the print head, and the bed could be described as the Y carriage.
Cartesian Axis: A coordinate system which describes the location of an object in three dimensions – X, Y and Z.
Caustic Soda: See Sodium Hydroxide.
CNC: Abbreviation of Computer Numerical Control – controlling motion using a computer which sends instructions as GCode.
Console: A means of entering CNC commands manually by sending typed text instructions.
Delamination: A defect in a 3D printed object where layers have not correctly fused together, resulting in a gap between layers. It can be caused by underextrusion, incorrect material process parameters or by excessive warping/shrinkage.
Desiccant: A chemical substance which absorbs moisture from the surrounding environment.
Drive Screw: Also known as a lead screw, this is a thread which is used to convert rotational motion (from a stepper motor) into linear motion. In Robox®, drive screws are used to move the gantry up and down.
Dual Extrusion: A type of 3D printing where two different materials can be extruded on the same layer using two nozzles.
EEPROM: Abbreviation of Electrically Erasable Programmable Read Only Memory – the type of memory which is used to store parameters in the printhead and SmartReel™.
Endstop: Also known as a limit switch, this refers to a microswitch which is used to define the limits of a motion axes. Also see Homing.
Extrudate: This refers to material which has been extruded from one of the nozzles on the printhead.
Extrude: The act of placing the build material on the build platform, normally by heating thermoplastic to a liquid state and pushing it through one of the nozzles on the printhead.
Extruder: This device is used for pushing the filament to the head along the Bowden tube. It uses two contra-rotating feedwheels to pinch the filament and feed it in a very controlled manner using a stepper motor.
Faceted: This refers to the appearance of a low-resolution 3D model, where individual polygons are visible in the printed object. The resolution of a 3D model is controlled by 3 parameters – chord length, step angle and step size. Reducing the size of these three values will result in a higher resolution model (smoother surface).
Feed Rate: This describes the speed at which motion axes move, usually in mm/s and can refer to the X, Y, Z and extruder ‘axes’.
Feedstock: See filament.
FFF: Fused Filament Fabrication. Where a filament of one material (plastic, wax, metal, etc.) is deposited on top of or alongside the same (or similar) material making a joint (by heat or adhesion).
Filament: The ‘feedstock’ for a FFF 3D printer – a thermoplastic which has been extruded into a 1.75mm diameter ‘wire’ which is fed to the print head and melted before being extruded onto the build plate.
Fill: This describes all extruded material on the inside of a printed object. It’s density can be varied between fully hollow and fully solid.
Fill Density: This describes the density of the fill – 0% for a hollow object, 100% for a fully solid object.
Firmware: This is the computer program which runs on the hardware itself and is stored in flash memory on the mainboard.
Flash Storage: This refers to the storage available on Robox® to store GCode print instructions during printing. It also maintains a history of previous prints, allowing them to be reprinted without reslicing. It is cyclic storage (once full, begins to overwrite from the beginning) which is not accessible on any device except Robox®. A microSD card is used as the storage medium.
Flow Rate: This describes the rate of extrusion from the nozzle – normally measured in mm³/s.
Footprint: This is the amount of flat area Robox® occupies when stood on a surface – 370x340mm.
Gantry: This describes the assembly which includes the Z carriages, X rails and X carriage. Its level is adjustable using two independent Z drive screws.
GCode: The industry standard language for CNC control commands – it has two distinct subsets – G and M codes, where G codes are motion commands, and M codes are logic commands, such as heater control.
HeadLock™: Refers to the printhead replacement system in Robox® – it allows you to change the printhead quickly and easily.
HIPS: High Impact Polystyrene – a simple thermoplastic which is frequently used as dissolvable support material as it bonds well to ABS and can be dissolved in Limonene, leaving the ABS part intact – see section X.X
Homing: As there is no direct feedback from the stepper motor in terms of position, homing is how Robox® determines the location of all axes before starting a print. Each axis moves until it reaches its endstop, which is then defined as the origin. Because the software knows the length of each axis, software limits can be used at the other end of travel.
Hot End: This commonly refers to the heated nozzle section of the extrusion system and includes the heater block and nozzles inside the printhead.
Hygroscopic: This describes the tendency for some thermoplastics to absorb moisture from the air – see section X.X.
Infill: See fill.
Kapton® Tape: Kapton® is a trade name of polyimide, frequently used for high temperature adhesive tapes and films. Many other printers use Kapton® film as a bed surface, however in Robox®, ThermoSurface removes the need for any coating on the bed.
Layer Height: This describes the height in mm of each individual layer of the 3D printed object. The thinner each layer is, the smoother the appearance of the outside surface will be, reducing the ‘stair stepping’ effect. Thinner layers = more layers = longer print.
Levelling: This refers to the process of ensuring the nozzle is always the same distance from the print bed to ensure accurate extrusion, good base surface finish and adhesion. Robox® performs the operation automatically in both dimensions, by adjusting the level of the gantry and continually adjusting its height as the bed moves back and forth.
Linear Bearing: This is a mechanical component which is used to constrain motion to 1 DoF (Degree of Freedom) – i.e. it can only move along a rail and cannot rotate. Linear bearings are used in the bed, Z carriage and X carriage to ensure the accurate position of the printhead.
Macro: This refers to a sequence of GCode instructions which are executed sequentially to perform a particular function.
Manifold: This is a term which is used to describe whether a surface model contains any gaps in its surface – i.e. whether it is ‘watertight’. Non-manifold surface models may produce errors in slicing, as the software is unable to define that edge.
MEK: Methyl ethyl ketone, also known as butanone is commonly used as an industrial solvent and polymer cement. It can be used for joining together printed parts and ‘vapour smoothing’ but must be used with care, as it can irritate skin and eyes. See section X.X.
Mesh: See 3D Model.
Micro-Manufacturing: A term used by us to describe the manufacture of objects on your desktop – i.e. a personal factory. Also used in industry to describe the manufacture of very small objects.
Microstepping: A method of increasing the number of steps per rotation of a stepper motor by varying the supply to the coils, allowing for increased resolution and smoother operation.
Model: See 3D Model
Nozzle: This is the part of the printhead through which material is extruded. Robox® has two nozzles of different diameters – 0.3mm and 0.8mm – with the smaller being used for fine details and the exterior surface of the part, and the latter being used for infilling the part at high speed by extruding a large amount of material at once.
Nozzle Height: On Robox® this is used to describe the difference between the mechanically determined surface position (the bed) and the actual position.
Nozzle Opening: On Robox® this describes the point at which plastic begins to flow from the nozzle, based on the position of the needle valve.
Nylon: Nylon or polyamide (PA) is an engineering grade thermoplastic used in a variety of applications. It is extremely tough and durable, making very strong functional parts.
.OBJ: Abbreviation of OBJect – a file format used to define a 3D model similar to .STL, but an .OBJ file can contain multiple models and also colour/texture data when used in conjunction with a .MTL (material) file.
Ooze: This is a phenomenon experienced on many other FFF printers, where molten plastic continues to flow from the nozzle when the extruder has stopped. It is conventionally compensated for using a ‘retract’, where the filament is pulled back to ‘suck’ molten material away from the tip of the nozzle. Robox® uses a needle valve system to stop the extrusion as required at the tip of the nozzle, resulting in minimal ooze.
Overhang: Describes an unsupported area of a 3D printed model. When automatic support generation is enabled, an angle threshold is used to define where support is generated – see section X.X.
Parametric: (Adjustable in all dimensions. A parametric model is one that can be resized and or distorted to suit the user’s needs. In CAD software, you can resize individual features (e.g. holes, ribs etc.), as opposed to a mesh (surface model), which is more difficult to adjust.
Perimeter: In FFF used to describe an extrusion path that runs around the perimeter of the object. e.g. number of perimeters sets the wall thickness of the object.
PLA: Polylactic Acid. A biodegradable thermoplastic polymer manufactured from corn starch which is frequently used as a 3D printer material.
PP: Polypropylene – a ‘waxy’ flexible thermoplastic which can be used for 3D printing, however it is particularly susceptible to shrinkage and warping issues due to its large thermal expansion coefficient.
Print Head: This is the ‘end-effector’ of Robox® which can perform a number of different functions depending on the model. The standard model is a single material, dual nozzle FFF head for producing 3D prints from a range of thermoplastic filaments.
PTFE: Polytetrafluoroethylene (Teflon®) – A high temperature engineering thermoplastic with an extremely low coefficient of friction – used to line the filament path to the head.
Pulley: More specifically – a timing pulley – used for translating rotational motion into precise linear motion. The pitch of the belt and the number of teeth on the pulley defines the resolution.
Purge: When switching between two dissimilar materials, it is important to remove the old material from the head completely to prevent blockages. Purge is a routine that chooses an intermittent melt point and forces through material to effectively switch between materials.
PVA/PVOH: Polyvinyl Alcohol – A water-soluble filament used as 3D printing material, often for dissolvable support. See section X.X.
QuickFill™: This refers to the twin nozzle system used by Robox® for reducing overall print times. By using a fine and fill nozzle, the exterior of the part can be produced slowly and carefully by the smaller nozzle, and then the inside can be filled quickly with the larger nozzle.
Raft: A technique used to prevent warping. Parts are built on top of a ‘raft’ of disposable material instead of directly on the build surface. The raft is larger than the part and so has more adhesion. Similar to brim in functionality.
Rail: A hardened and ground steel round bar used for constraining linear motion to one DoF.
.ROBOX: A Robox® file – contains an AutoMaker™ project which includes your layout of objects on the print bed and all associated print settings and slicing parameters.
.ROBOXFILAMENT: A Robox® filament definition file – contains material properties for a particular filament e.g. melt temperature.
.ROBOXHEAD: A Robox® head definition file – describes a particular head type and associated default parameters.
.ROBOXPROFILE: A Robox® print profile – contains slicing parameters
Repository: (Typically) an online store of 3D models for printing.
RepRap: A RepRap machine is a rapid prototyping machine that can manufacture a significant proportion of its own parts.
Resolution: Typically used to describe the layer height and positional accuracy of a 3D printer. Please refer to specifications in Section X.X.
Retraction : Often used in other printers to control ooze – describes the ‘pulling back’ of filament from the print head. Also see Ooze.
Robox® Account: Your Robox® account must be registered when using AutoMaker™ for the first time to allow us to offer effective support and send software updates.
Routine: See Macro.
RP: Abbreviation for Rapid prototyping. Creating an object in a matter of hours using additive manufacturing.
Shell: Used to describe the outside surfaces of a 3D model.
Silica Gel: A desiccant which can be used for reducing the water content of filament. It can be reactivated by slow oven drying or microwaving – times depend on the quantity.
Slice: The process of converting a 3D model into individual layers or ‘slices’ for printing. Toolpaths are generated to describe the motion of the printhead and extruder in GCode.
Slicer: The part of the software which is responsible for producing GCode instructions for printing from a 3D model.
SmartReel™: A Robox® filament reel which includes an EEPROM for storing material parameters – allowing for instant machine set up when it is installed in the dock.
Sodium Hydroxide: A highly caustic alkali salt which can be used in solution to dissolve some types of dissolvable support material – see Section X.X.
Solid Model: A type of CAD model which is represented by geometrical features (circles, rectangles etc.), rather than a list of vertices which form a polygonal mesh (surface model). Example of solid model file formats include .STEP and .IGES and they can be exported from many CAD packages.
Spool: Another term for the filament reel – see SmartReel.
Stair Stepping: A phenomenon common to all FFF printers to varying degrees, it describes the appearance of individual layers, particularly visible on surfaces close to horizontal at larger layer heights. To minimise this effect, you must reduce the layer height.
Step Angle: The angle of a discrete increment of rotation of a stepper motor.
Stepper motor: DC Motors which operate only in discrete increments of rotation (steps). Robox® uses motors with a step angle of 1.8°, meaning there are 200 discrete steps per rotation.
.STL: Short for Stereo Lithographic, the most common file format of 3D models for 3D printing. It only contains geometry data in the form of a polygonal mesh, and is slowly being replaced by more advanced standardised formats such as .AMF.
Stringing: A print defect characterised by thin ‘strings’ of polymer between separate extrusion paths. It is caused by ooze – as the head travels to another location, it drags a string of molten plastic from the head, affecting the surface finish of the part.
Subtractive Manufacturing: This is the traditional means by which an object is manufactured, usually by machining. Starting with a ‘blank’ of raw material, you cut away the areas you don’t require, rather than just building the areas you do – see Additive Manufacturing.
Support Material: Support material describes printed material which is not part of the desired object, but is produced for supporting areas which are not sufficiently supported. Because FFF relies on laying down material on top of a previous layer, it cannot print effectively in thin air – except bridges over a short distance. It can be produced from the same material as the model (Breakaway Support) or a different material which can be removed by chemical means (Dissolvable Support) See Section X.X.
Surface Finish: This describes the quality of the outside surfaces of the part, which can be affected by a wide range of factors.
Surface Model: Describes a type of 3D model which only contains surface data in the form of a polygonal mesh. They do not have to be ‘manifold’ and can therefore cause issues with slicing if not prepared correctly.
Thermoplastic: This is a type of polymer which softens on heating, allowing it to be formed into a different shape. This differs from a thermoset plastic, which is formed by a chemical reaction and does not soften on heating, but will degrade.
ThermoSurface: This is a high performance engineered thermoplastic. The bed surface of Robox® is known as ThermoSurface it bonds particularly well to molten ABS and PLA – important for bonding the first layer to the bed.
Toolpath: This describes the motion that the printhead takes to produce a layer written in GCode motion coordinates.
Transition Point: This term is used to describe the point at which the solid filament becomes molten in the head assembly.
Underextrusion: A print defect characterised by a lack of material being extruded, leading to surface finish errors and bad layer bonding. It is usually caused when the extruder cannot force filament into the ‘hot-end’ fast enough, due to blockage, softened/wet filament, or incorrect material parameters.
Vapour Smoothing: This is a process used to smooth out the surface of a 3D printed model by vaporising a solvent and then allowing to condense on the surface of the model – causing partial melting and a smoothing effect. See Section X.X.
Viscosity: Viscosity is a property of fluids determining it’s resistance to flow. The higher the viscosity, the more difficult a material will be to extruded or dispensed (more energy/pressure will be needed).
Warp: A print defect caused by uneven cooling of the part, particularly severe in certain materials such as PP, HDPE and ABS. The enclosed build chamber of Robox® is designed to help reduce these effects, by causing the part to cool down uniformly at the end of the print and reducing draughts. See Section X.X.
‘Watertight’: See Manifold.
WPC: Wood Polymer Composite – a composite material produced from wood ‘flour’ and a thermoplastic. Can be used for printing ‘wood like’ objects.
X Axis: This is the axis which controls the motion of the head left and right along the X rails, driven by a belt and pulley system.
X Carriage: The X carriage contains the HeadLock™ system for attaching different print heads and moves left to right along the X rails.
Y Axis: This is the axis which controls the motion of the bed forwards and backwards along the Y rail, driven by a belt and pulley system.
Z Axis: This is the axis which controls the motion of the gantry up and down along the Z rail, driven by leadscrew.
Z Carriage: These are the plastic housings which hold the X rails perpendicular to the Z axis and form the two sides of the gantry.
Warranty: One year parts & labour