URANUS: the first working table SLA (stereolithography) printer

URANUS ) who is in Moscow.




History of 3d-printers began in 1984 with just stereolithography apparatus. Now, these printers are often used by jewelers, since the accuracy of such models print an order of magnitude FDM device (which is printed plastic)

Under the cut a few pictures innards printer and the birth of the Hydralisk "bloody bath»



Spawn Hydralisk (H)


Appearance:



The first impression - like a bucket for papers, but for "homely interface hides a powerful algorithm»

Raw:



Photopolymer bright red. Included with the printer goes 0.5 liters photopolymer resin photopolymer resin separate volume of 0.5 liters costs 10 000 rubles (already considering a new course), but the printer is not limited to the resin and allows the use of other resins. Ie in fact this SLA printer is versatile for use resins from different vendors.



Changing photopolymer under the action of light

How it works SLA



Examples of printing

Manufacturing Hydralisk of bloody bath h4>

The printer has a "native" software that allows you to do all the necessary manipulations



The number and location Supports choose their own



You can choose the form of the substrate



Initially, the platform is at the very back of the "minus delta»

Further switched laser that acts on those portions of the polymer walls corresponding to the target object, causing solidification. Thereafter, the entire platform is raised slightly higher by an amount equal to the thickness of the layer.



(Something often I recently caught lasers)



Laser and mirror control


Laser Power: 50mW - the most powerful laser, allows for a wider range of resins.
Wavelength UV: 405nm

Print Hydralisk took about an hour, all the while pointing softina% performance and estimated time



After the end of the materialization want to place the product in an alcohol bath followed by radiation in the ultraviolet (suitable and pedicure)



Platform (print area: 180mm × 128x128) can be easily removed, making it easy to work with freshly baked hydra.



After an hour pending / peer into the details printed on a similar printer, what comes out of the nozzle "ordinary» 3d-printers seem rough and thick layers just hurt the eyes (but soon it passes).

More examples of works printed on URANUS

Applications h4>

Research. B> As to obtain a model of almost any complexity for any purpose can be in a few hours, SLA-technology has become an indispensable assistant for various types of research investigations. Models have sufficient strength and transparency, so you can visualize gas and hydrodynamic flows within the models.



Medicine. B> In maxillofacial surgery and orthodontics SLA with the advent of a new direction. The patient is doing MRI problem area, it is formed from the computer 3d-model, but it is grown on a real 3d-model of bone tissue. Thus, the doctor the next day is in possession of the bones or teeth model real patient.




Art. B> The sculptors, designers and jewelers, thanks to technology stereolithography to a new level of production. 3d-printing process significantly reduces the time prototypes for testing of experimental samples, which favorably affects the speed and quality of a future piece of jewelry or sculpture. SLA-technology is very well suited for this: models durable, easily dyed.

Lost foam models. B> If you have any needs for metal parts, the following technology: SLA-model is filled with molding sand, and then calcined at high temperatures. In this case, the plastic is completely burned out, and in its place in the form of the resulting vacuum is filled with metal. After its solidification form is destroyed and the item is removed.

Chip
One printer holders (from Belarus) manages to burn the resin in an oven, i.e. there is an actual confirmation that using a resin with the printer URANUS, can burn out the resin temperature (parameter "ash"). Jewelers and those who make crafts from metal to understand why.

Feature is that the printer will be available a special temperature map, which will contain information at any temperature (about 600-650 degrees Celsius) and the time necessary to hold hack to achieve the collapse of the resin in the oven.

Conclusions. H4> The speed is higher than that FDM
Very large print size (in comparison, the 1200 ProJet about 4x4 cm)
Utter silence (but there is a smell)
Detailing on the order of magnitude higher than that of plastic 3d-printers (FDM)
The price is lower than that of counterparts
Economical consumption of consumables

There is another "minus". If a job plastic printer can watch for hours, as it fascinates flight flutter like snowflakes or flames, then the SLA printers are all very pragmatic - Press - an hour out of the box received the item. The process of birth will not be able to peep. But all the same thing seems to be magic.

P. S. The former is never



Source: geektimes.ru/company/neuronspace/blog/239057/