Sep 25, 2014 | By Alec
One of the citizen engineers over at Formlabs, Craig Broady, has fabricated a absolute air-conditioned little accent that shows off the possibilities of Stereolithography press technology (or SLA). Application the company’s signature Form1 3D printer, he has advised and printed an absolute accumulative monocle.
This is a absolute absorbing feat, and not aloof because of its baby size. For enabling deepening requires a absolutely advised and printed lens that is anticipate abundant to acquiesce for the curvature that enables magnification, but after creating distortion. These exact requirements resulted in a arresting lens that is 1.75 mm at its thinnest and 4.32 mm at its thickest.
If anything, this absorbing little conception shows off the company’s printer Form1 and their bright adhesive material. Broady advised the lens, frame, alternation and blow application Solidworks CAD software, while the lens was added able for press application Formlabs’s PreForm press software.
But anyone attractive for a absolute appropriate 3D press activity can – provided you accept your absolute own Formlab Form1 printer – imitate Broady’s air-conditioned project. The CAD files for the monocle can be begin here, while Formlab’s Preform Press software can be advisedly downloaded here.
This is how he did it. While press of the abstracted genitalia needs little guidance, the lens itself was absolutely a project. The genitalia were printed application a 50 micron band thickness, admitting was additionally distinctively aggressive such that it faced the advanced of the printer. This accustomed the aqueous adhesive to breeze added advisedly about it during the bark cycle. As Broady explained, ‘Maximizing adhesive breeze can advice anticipate absolute baby convalescent particles in the adhesive from adhering to lens, ensuring as bland a apparent as possible.’
But of course, such as abundant activity appropriate a bit added than a adorned printer and software. As anon as the lens was beginning out the printer, it bare an all-encompassing sanding and cutting phase. This can be done manually, but can that would booty hours, so Broady resorted to an electric assignment that did the job in a atom of that time.
To advance a drill, the lens was advised with a assignment articulation congenital into it. I aboriginal sanded the arched ancillary of the lenses, affective from 220 to 2000 dust sandpaper in accomplish of almost 400. I operated the assignment on the low acceleration setting, and ran it beneath balmy tap baptize to bound aish balance from the sandpaper. For anniversary step, I sanded for about two minutes. After the sanding is complete, the lens should be absolute bland to the touch.
Afterwards, Broady accomplished able his lens, application the three states of Novus Scratch remover: Heavy Scratch Remover (3), Accomplished Scratch Remover (2) and Plastic Clean & Shine (1) to accomplish the adapted akin optical clearness. After accomplishing the aforementioned for the added ancillary of the lens, he assuredly completed his project.
While you will charge their appropriate SLA printer to accomplish these results, it is nonetheless a absolute air-conditioned activity and acknowledgment to the deepening backdrop one of the best absorbing press after-effects we’ve apparent for a while.
Posted in 3D Press Applications
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Could Craig actualize an instructable for this achievement?
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