twin extrusion machine
3D Printing Business evaluations the Kodak Portrait 3D printer.
Designed by Good Worldwide and licensed with the Kodak model, the Portrait 3D printer is a desktop sized professional-grade twin extrusion FFF system. The printer is priced at $three,499 and geared toward engineering and design professionals with a set of exact motors and specialist options equivalent to a filament runout sensor and an in-built digicam for distant viewing. The printer is anticipated to be standard with instructional establishments.
The Portrait has a typical construct quantity of 215 x 210 x 235mm when working in single extruder mode and 170 x 210 x 235mm when in twin extruder mode. The Portrait’s printhead homes two simply replaceable nozzles, an all-metal nozzle and a PTFE nozzle. With a most temperature of 295°C, the all-metal nozzle is able to extruding harder engineering thermoplastics equivalent to ABS or PETG. An enclosed construct space aids with temperature management.
The Kodak Portrait accepts filaments of diameter 1.75mm and extrudes by means of zero.4mm nozzles. Layer heights could be various from 20 – 250 microns and most digital and mechanical capabilities are managed by means of the 5” full coloration touchscreen on the entrance of the printer. Connectivity choices embrace Wi-Fi, LAN and a USB port. The Portrait is supported by the Kodak 3D slicer.
Kodak Portrait 3D printer. Picture by way of Kodak.
Setup and first impressions of the Kodak Portrait
Upon unboxing the Kodak Portrait, the consumer is greeted with a toolkit and an assortment of equipment. The toolkit incorporates upkeep objects equivalent to an unclogging needle, a calibration card, and lubrication for the threaded rods. The accent pack consists of two spools of PLA filament, filament circumstances to stop moisture absorption, and spool holders to mount on the rear of the printer.
Whereas many of the important parts of the Portrait come totally assembled, a number of objects within the accent pack will must be secured to the printer with screws and a Phillips screwdriver earlier than use. The directions for this step are illustrated within the fast begin information discovered within the field. The setup course of takes about ten minutes.
It’s clear from dealing with the Portrait simply how strong the physique is. A full metal chassis, bounded by plexiglass panels on three sides, makes for decreased shaking whereas giving customers full visible entry to the construct space. The glass print mattress, able to sustaining 105°C, is hooked up to the physique by way of 4 magnets. Consequently, it may be eliminated very simply for cleansing or substitute. The print head is free to maneuver within the XY airplane whereas the mattress elevates to cater to Z axis modifications. The Portrait additionally contains a HEPA filter with activated carbon which filters the fan extracted air to cut back fumes and odors. This makes it appropriate for long-term indoor use equivalent to in school rooms.
Mattress calibration is automated and so simple as discovering the perform within the printer’s simple to navigate menus. A deeper dive into the settings will give the consumer the choice to select from a large number of languages. Intuitive temperature profiles for the varied appropriate supplies and useful animations make loading and unloading filaments quite simple. Nevertheless, if the printer is backed up towards a wall, the spool feeders on the again plate could be tough to succeed in because of the comparatively massive body of the Portrait.
Florence Cathedral printed on the Kodak Portrait. Picture by 3D Printing Business.
The Kodak 3D slicer and Cloud
The Kodak slicer is a repackaging of the effectively established Cura slicer, with a Kodak themed coloration scheme. The UI is as intuitive as ever; as soon as the consumer selects a 3D STL file, it seems within the digital workspace within the heart of the UI. Considered one of 4 customization modes can then be chosen: fundamental, superior, skilled or customized. The mannequin could be translated, rotated and rescaled as desired, with extra settings for layer top, journey velocity, temperature, helps, cooling and, after all, twin extrusion. As soon as the file is able to be sliced, the gcode is robotically saved onto no matter USB is plugged into the pc and the estimated print time is displayed within the backside proper nook.
In twin extrusion mode, fashions to be printed by extruder one are displayed in yellow whereas these printed by extruder two are displayed in inexperienced. Switching between the 2 extruders is so simple as clicking on the specified extruder on the high. The identical orientation settings apply in twin extrusion mode.
Kodak slicer in twin extrusion mode. Picture by 3D Printing Business.
The Kodak slicer general works very effectively. If a mannequin is unprintable as a consequence of measurement or orientation, the slicer is fast to let you know so. The one actual limitation of the slicer is the shortage of an automated preview stage throughout the slicing course of. And not using a preview, it’s nearly unattainable to gauge the place the helps will likely be printed and the way a lot materials will likely be used. To view the place the helps will likely be printed, the consumer should choose layer view within the views dropdown. Most slicers incorporate an automated preview stage sooner or later within the file preparation course of earlier than slicing.
The slicer will not be the one file preparation choice supplied by Kodak. One of many extra thrilling companies that accompany the Portrait is the online browser-based Kodak Cloud. Customers can make the most of the cloud service for file orientation, slicing, initiating prints and managing the final workflow throughout a number of Portrait techniques. The historical past of a Portrait’s prints is accessible within the cloud, alongside helpful data equivalent to hours printed, quantity of fabric used and variety of failed prints.
The straightforward to make use of service permits customers to import 3D recordsdata domestically or by means of Dropbox or Google. The imported recordsdata can then be translated, rotated and rescaled identical to the offline slicer. As soon as the structure is finalized, the sliced gcode is saved to the tasks part. Assuming Wi-Fi or LAN connectivity has been arrange on the Portrait, the print can then be initiated, paused or canceled remotely. A minor however irritating flaw of the cloud service is the shortage of a flatten by face characteristic within the file preparation stage. This usually makes it tough to search out the optimum placement of a mannequin because it must be executed manually.
File preparation within the Kodak Cloud. Picture by 3D Printing Business.
Benchmarking the Kodak Portrait
As with all our printers at 3D Printing Business, we put the Kodak Portrait by means of its paces with a plethora of benchmarking assessments to see if the system actually does dwell as much as its claims. The primary print carried out on the Portrait was a normal benchy in PLA+. The benchy mannequin is a jack-of-all-trades benchmarking take a look at as a consequence of its abundance of overhangs, round trajectories, bridges and holes.
Set of benchy fashions 3D printed on the Kodak Portrait. Picture by 3D Printing Business.
The Kodak Portrait initially had some difficulties with over extrusion and droopiness however a swift tinkering of a number of the parameters yielded an excellent print. Temperatures and print speeds had been lowered whereas fan speeds had been elevated. Utilizing the optimized settings, the benchy was printed with clean curvature and no stringing.
Subsequent up was the repeatability take a look at, which assessments a printer’s means to recreate shapes exactly and persistently. The take a look at comprised three totally different elements which had been all printed 5 instances. Because the supposed dimensions of the fashions are identified, the discrepancy between the unique and actual dimensions together with the deviation between them could be calculated.
The fashions used within the repeatability take a look at. Picture by 3D Printing Business.
The printed squares noticed glorious outcomes. A most customary deviation of zero.04 coupled with exterior dimensions nearly an identical to the supposed dimensions resulted within the 5 squares being nearly indistinguishable. The inside diameter was much less exact and displayed a higher deviation, nevertheless. The hexagons and tubes noticed comparable outcomes. Extremely low customary deviations of zero.05 and zero.06 respectively, together with extraordinarily exact exterior dimensions, resulted within the elements being very repeatable. Once more, the inside crevices and diameters noticed a slight drop in precision. From this take a look at, we will see what offers the Portrait its professional-grade standing. General, the heights and exterior shells of all three fashions fabricated exactly with little deviation between them. Nevertheless, the discrepancies between the smaller inside dimensions lead us to imagine the Portrait struggles with micro-movements within the XY airplane.
We then examined the machine’s means to print tall, skinny buildings with the 235mm tall tower take a look at. FFF techniques are likely to have some bother with taller fashions because of the vibrations and consequent shaking attributable to the stepper motors. This shaking usually ends in apparent layer traces in the direction of the highest of the printed half.
The tower take a look at (proper). Picture by 3D Printing Business.
The Portrait, on this occasion, held its personal admirably. The tower was straight all the best way up, fabricated with out knocking over, and had minimal layer line visibility. This may be attributed to the machine’s sturdy, metal 24.4kg body dampening the vibrations attributable to XYZ translation.
Skilled techniques ought to be capable to print skilled supplies, so we investigated the Portrait’s means to deal with some notoriously troublesome filaments. First up was a pair of PETG containers printed at 240°C.
PETG container take a look at. Picture by 3D Printing Business.
The Portrait dealt with PETG very effectively. There have been no main points with the fashions; some stringing shaped on the corners and layer traces had been seen upon nearer inspection however the floor end was nice with the Kodak filament.
A turbine was then printed in white nylon 6 at 240°C. The final consensus is that nylon filament will not be a really cooperative materials. It does have in depth industrial purposes nevertheless, as a consequence of its gentle weight and excessive tensile energy.
Nylon turbine take a look at. Picture by 3D Printing Business.
The turbine print materialized very effectively – it might even be used as a practical half. Aside from the slight beneath extrusion on the base of the half, the turbine had no different points and printed true to scale. All of the blades had been printed with out helps so this take a look at additionally demonstrated the overhang skills of the Kodak Portrait.
Twin extrusion assessments
Considered one of key options of the Portrait is its twin nozzle meeting. We put this to check with a vase printed in PLA and ABS. The PLA was extruded at 200°C whereas the ABS was extruded at 230°C.
Twin extrusion vase take a look at. Picture by 3D Printing Business.
The print high quality of the vase was glorious. The Portrait actually delivers on its twin extrusion guarantees because the interface between the 2 supplies was clear as day whereas sustaining energy. The machine’s potent twin extrusion capabilities could be extraordinarily invaluable to skilled designers.
The ultimate print was the ‘ball in a cage’ mannequin printed in PLA and PVA. This enjoyable contraption depends on PVA’s distinctive water solubility property to correctly function. As soon as the PVA helps dissolve away, all that’s left is the PLA ball within the PLA cage.
Twin extrusion ‘ball in a cage’ take a look at. Picture by 3D Printing Business.
This twin extrusion print added to the checklist of the Portrait’s successes. As soon as the PVA was eliminated, the ball was free to maneuver round within the cage. The advantageous grid construction on the face of the cage can also be a terrific demonstration of the printer’s use of soluble PVA helps to manufacture advantageous geometries.
After all of the trials and tribulations, the Kodak Portrait has earned its professional-grade price ticket. With premium options just like the filament runout sensor and the in-built digicam for distant monitoring and timelapses, the Portrait makes a advantageous addition to any workbench. Some minor alterations to the default PLA temperature profile together with the power to alter the print parameters as soon as the construct has already began would make the machine a primary selection for anybody seeking to produce prime quality practical prints. The cloud service works effectively, the twin extrusion works even higher, and the Kodak Portrait does precisely what it’s imagined to.
The nominations for the 2020 3D Printing Business Awards at the moment are open. Who do you assume ought to make the shortlists for this 12 months’s present? Have your say now.
Subscribe to the 3D Printing Business publication for the most recent information in additive manufacturing. It’s also possible to keep related by following us on Twitter and liking us on Fb.
On the lookout for a profession in additive manufacturing? Go to 3D Printing Jobs for a choice of roles within the business.
Featured picture reveals Kodak Portrait 3D printer. Picture by way of Kodak.
Visit our partner Virtualrealityuse
Credit score : Supply Hyperlink