Video: Will It Fade? – UV Fade Resistance Challenge

How does prolonged exposure to intense UV light impact 3D-printed plastics? Will they fade? In this "Will it…" video, Greg Paulsen, Xometry's Director of Application Engineering, 3D printed samples using various additive processes, including FDM, SLS, SLA, PolyJet, DLS, and LSPc, to determine their UV fade resistance.

Watch the video to find out which 3D-printed plastic held up the best after facing extreme UV exposure!

More About This Test

For this video, we used these 3D printable polypanels as our test subject. Here is a list of the processes and materials that were tested:

Fused Deposition Modeling (FDM)

  • PLA
  • ASA
  • ABS-M30
  • Polycarbonate
  • ULTEM 1010
  • ULTEM 9085

Selective Laser Sintering (SLS)

  • Nylon 12 Standard
  • Nylon 12 Dyed (various colors)
  • Nylon 12 Vapor Smoothed and Dyed Black

HP Multi Jet Fusion (MJF)

  • Polypropylene
  • Nylon 12 Standard
  • Nylon 12 Dyed Black

Stereolithography (SLA)

  • Accura ABS Black
  • Accura ClearVue (standard and quick-clear finish)
  • Somos EvoLVe 128
  • Accura Xtreme White 200
  • Accura 60
  • Somos WaterShed XC 11122
  • Somos WaterClear Ultra 10122

Lubricant Sublayer Photo-curing (LSPc)

  • xMODEL17
  • xCERAMIC3280

Digital Light Synthesis (DLS)

  • UMA 90 White
  • RPU 70 Black

PolyJet

  • Rigid Clear (VeroClear)
  • Rigid Multi-Color (Full-color Texture)
  • Multi-Material

The UV Test Chamber

To perform our UV resistance test, we designed and built a customized chamber to house a powerful UV-C light designed to purify air in HVAC systems. We utilized our Sheet Cutting service to cut the chamber panels from mirrored polycarbonate. To ensure even exposure across the parts, the assembled 3D-printed parts were placed on a turn table inside the chamber.

Part Photo Gallery

In the image gallery below, you'll find a few photos of the poly panels we printed for the test. These photos are BEFORE the experiment. If you want to see how they turned out after the test, be sure to check out the video!

FDM – ASA

Faded 3D Printed Parts

PolyJet Multi-ColorLeft – UV Exposed, Right – ControlPolyJet Multi-MaterialLeft – UV Exposed, Right – ControlSLA Accura ClearVueLeft – UV Exposed, Right – ControlSLA Accura ABS Black (Matte Paint)Left – UV Exposed, Right – ControlFDM ULTEM 9085 TanLeft – UV Exposed, Right – ControlFDM ULTEM 1010Left – UV Exposed, Right – ControlFDM ABS-M30UV ExposedSLS Nylon 12 (PA12), Dyed BlackUV ExposedSLA Somos Evolve 128Left – UV Exposed, Right – ControlSLA Somos WatershedLeft – UV Exposed, Right – ControlFFF PLAUV ExposedSLS Nylon 12 (PA12), Dyed Blue and YellowUV ExposedSLS Nylon 12 (PA12), Dyed Red and GreenUV ExposedHP MJF Nylon 12Left – UV Exposed, Right – ControlCarbon DLS RPU 70Left – UV Exposed, Right – ControlLSPc xMODEL17 ClearLeft – UV Exposed, Right – ControlFDM PCLeft – UV Exposed, Right – ControlPolyJet VeroClearLeft – UV Exposed, Right – ControlDLS UMA WhiteLeft – UV Exposed, Right – ControlFDM ASAUV ExposedSLA Accura 60Left – UV Exposed, Right – ControlHP MJF, Dyed BlackLeft – UV Exposed, Right – ControlSLS Nylon 12Left – UV Exposed, Right – ControlLSPc xCERAMICLeft – UV Exposed, Right – ControlSLA Accura Xtreme WhiteLeft – UV Exposed, Right – ControlHP MJF PPLeft – UV Exposed, Right – ControlSLA Accura ClearVue, Quick ClearLeft – UV Exposed, Right – Control

More Engineering Challenge Videos

Want to see more content like this? Check out our other engineering challenge video below!

  • Will It Erode? – Abrasion Resistance Test

Need 3D Printed Parts?Joel SchadeggHey, I’m Joel and I’ll be your guide for everything Xometry! From my time as an Additive Technician in our 3D printing facility to operating a team of case managers as a Business Unit Manager, I have made it my personal mission to help customers like you you get the most out of the Xometry Experience. Now, as an Applications Engineer, I am here to help you by providing expert advice to help you excel and achieve success on your projects.

Read more articles by Joel Schadegg

什么是原厂皮?皮料科普 大牌包都使用哪几种皮革?

好皮做好包,一个包包最不可缺少的部分,最体现品质的部分,就是皮革,只有好的皮料才能做出很好的包,也只有最顶级的皮料才能做出最顶级的美丽包包!

喜欢全皮包包的质感,是很多爱包人是的共同特点,不管是普通人还是专业人士,对一款包包的品质要求,往往都是从皮料开始的,通过仔细观察,用手触摸,用鼻子闻等方式来辨别皮料的好坏。

不过皮料种类繁多,我们的包常用的皮料有哪些?这些皮料又是来源哪里呢?有哪些特点?品质怎么样?如果你有兴趣了解的话,现在就花一分钟时间科普一下吧。

皮料五金匠心甄选

皮料有不同等级,主要分为上图三种,

美丽包包在众多等级的皮料中,

精选最顶级的原厂头层牛皮制作而成。

皮料的金字塔等级分类图

我们采用的是A部分最顶级的原厂头层皮A+B=头层皮料

头层皮大约占整个动物皮料的1/9,因此头层皮特别珍贵,它保持了皮料自身的天然属性,是最有质感和肉感,毛孔清晰细小,富有弹性和透气性。

A粒面皮:选用最顶级的进口头层皮,保留了皮料自身的天然粒面,是最接近牛皮本身的质感肉感,没有经过太多的人工优化。

B修面皮:修面皮料本身瑕疵多,或肉感不好,需要人工修面来降低瑕疵提高利用率,但失去了完美的手感、肉感和香气。

C二层皮:真皮的下面一层,经化学材料喷涂或覆盖上薄膜加工而成,虽有一定的弹性和可塑性,但强度较差,

D再生皮:将二层牛皮的碎屑压成再生二层皮,再加上PVC人造皮层。

颗粒纹牛皮

我们的颗粒纹牛皮,皮革中最经典的一种,也是最常见的,许多的包包中都有出现,

特点:颗粒小且饱满,防水耐用,哑光质感高级感十足,有天然的颈纹的纹理。

来源:颗粒纹皮革取自公牛皮颈部,天生带纹理,每张皮子的纹路深浅、纹路大小都不一样,颗粒纹牛皮韧性很好,颗粒小也相对饱满。

鳄鱼纹牛皮

我们的鳄鱼纹:选择进口皮胚,自己反复推敲设计仿真鳄鱼纹肚皮纹路,双色立体感,少有的既有含蓄光泽,又有高级质感的鳄鱼纹,可以和红宝三打磨稀有鳄鱼皮媲美。

特点:耐磨抗造,纹理感和光泽感十足

来源:鳄鱼纹皮是头层牛皮压纹所制成,而非真鳄鱼的皮。

摔纹牛皮

我们的摔纹牛皮:来自意大利知名的皮料供应商——GR工厂,奢侈品御用原厂皮,摔纹是自然收缩纹理,皮料每个部位纹理是不一样的,每个包包都是独一无二的。

来源:是把皮在转鼓里摔来摔去形成一种比较自然的纹路,质感较好,没有经达机械压纹的。

手搓纹牛皮

特点:手搓纹是赛琳和爱马仕共用的独立皮料,横向纹足和平纹最大的区别就是手搓纹横纹很紧绷,纹理是细细的不太规则的横纹理。

来源:手搓纹是通过手工师傅用大拇指指腹逆着毛孔方向揉搓而形成的工艺性纹理。

鱼子酱牛皮

特点:硬挺有型,手感高级,肌理感和颗粒感很强。

来源:鱼子酱我们选的是顶级头层牛皮压制而成,不光纹路立体感好。

手感和香气也非一般皮料比拟,在牛皮表面做出的凹凸颗粒感像鱼子酱,所以叫鱼子酱牛皮。

山羊皮

特点:山羊皮纹很轻,纹路低调华丽,爱马仕家的小皮具选用了很多,耐磨度高于羊皮和小牛皮。

树纹胎牛皮

特点:树纹胎牛皮,来自全球最大的奢侈品皮料供应商,皮料粗旷自然,

手工搓出树纹,特殊工艺海绵托底,皮质特别轻盈,而且香香哒。

天然牛皮的特征

保留牛皮天然的味道

1:因为意大利畜牧业发展程度较高,

气温适宜,牛吃的草品质较好。

2:做皮料的时候加入几味当地纯天然的植物精华和秘方配比,故意大利的头层牛皮会有皮料

特属的香气,会给人带来美好的幸福感。

牛皮的肋部伤痕

关于牛皮的肋部伤痕

所谓肋部伤痕是指牛在活动时在身体上所留下来的伤痕,有些狂野的感觉。

牛的助部约占全身的百分之七十左右,而这也是皮革最常运用的部位。

有些匠人会刻意保留这些伤痕,凸显出作品的独特性。

皮料的天然皱纹

有时尚牛皮在加工处理后,会浮现像老虎斑纹的痕迹,这是牛天然的皱纹,和人一样的皱纹。由于牛有低头吃草的习性,因此大部分会出现在牛的脖子到肩膀部分,呈现大片的纹路状。

Keyword: 爱马仕kelly

Grant Ice Cool

Description

Grant Ice Cool Slim – An ice-cold tickling sensation is what you get with this nicopod. High in nicotine with 35 milligrams per gram this is a really strong pouch. Grant Ice cool is just a crazy mint explosion followed by some satisfying freezing tickles

FACTS

Weight: 11,8g (net)
Nicotine: 35 mg/g
Flavour: Mint
Pouches: 27 / can
Pouch size: Slim
Texture: Moist
Available in: Single cans, Rolls (10 cans)
Manufacturer: UAB Kordula

FUMI Salty Violet

Click:defoamers market

Description

FUMI Salty Violet – Licorice and violet are traditional and much appreciated Swedish candy flavors that are now finally available as snus. It is childishly adult aromas that marry perfectly, something we are convinced will be many’s favorites. A product for those who love licorice but want to switch between different exciting side flavors. Fumi Salty Violet has the same fast release and long-lasting taste experience as other Fumi products. The can contains 20 slim pouches in the exclusively soft and white nonwoven material that characterizes all Fumi products. The nicotine strength is 8 mg/pouch.

Facts:

Weight: 14 g (net)
Flavour: Violet, Licorice
Nicotine: 12 mg/g (8 mg/pouch)
Pouch Weight: 0,7g
Pouch size: Slim
Number of pouches: 20
Texture: Moist
Available in: Single cans, Rolls (10 cans)
Manufacturer: The Snus Brothers

Extreme Fruit Vibes Strong

Description

Brand New All White Product, Fruit Flavour with a nicotine level of 20 mg/g. Long lasting Nico and flavor boost.

FACTS
Weight: 15 gram (net)
Flavour: Fruit
Nicotine: 20 mg/g
Pouch size: slim
Number of pouches: 20
Texture: moisture 6%
Available: in single cans, roll (10 cans)
Manufacturer: UAB N.G.P. Empire Lithuania

Youri Tielemans to AS Monaco, on the verge of completion

Click:Head massage and relaxation

In a stunning early move, AS Monaco are on the verge of completing the transfer of Belgian central midfielder Youri Tielemans from Anderlecht.

Le Parisien report that Youri Tielemans spent today in Monaco with his agent. The player has departed with a contract from Monaco, all that is left for him to do is sign the deal.

Transfer negotiations between Monaco and Anderlecht are also at an extremely advanced stage. The fee will be €20m plus a series of bonuses.

Tielemans to AS Monaco, on the verge of completion.

Click Here: Australia Rugby Shop

Arsène Wenger to initiate a transfer window revolution at Arsenal this summer

Click:gemini api 收费

Arsenal manager Arsène Wenger, poised to remain at the capital club and sign a new deal, will ignite a summer transfer window revolution in the coming months, the kind that the Gunners have never seen before, according to L’Équipe.

This is part of a plan to enable him to go out on a high, ruthlessly reconstructing his Arsenal team, with several players this season having disappointed him to the point of apparent no return.

In this regard, L’Équipe link Arsenal to a potential move for Lyon striker Alexandre Lacazette and AS Monaco full-back Djibril Sidibé.

Click Here: Ireland Rugby Shop

Top 4 charts to follow in 2021: #2: SP500 earnings

This chart shows the S&P500 index versus the earnings of S&P500 companies.

Here, we can clearly see the increasing divergence between the value of the S&P500 companies and their earnings.

This would reinforce the narrative that the equity market has been driven by central bank liquidy rather than their underlying fundamentals.

Will 2021 mark the end of this divergence?

The answer to this question is what makes this chart one of the 4 to follow in 2021.

The History and Future of Aluminum Extrusion

Aluminum is an essential element that is behind only silicon and oxygen in terms of its abundance in the earth’s crust. While materials like steel and copper have a longer use history, today aluminum is found in numerous applications across a wide swath of diverse industries.

The History of Aluminum

Aluminum ores had previously been identified but extracting it was a tricky and complex process until the late 1800s. At that time, the Hall- Heroult process of smelting aluminum — or extracting it from alumina, its oxide — was developed. In fact, at that point in time, aluminum was considered to be of greater importance than gold. With the refinement of its extraction processes, the metal became even more desirable and in demand.

The History of Aluminum Extrusion

Joseph Bramah, an English locksmith and inventor, is credited with being the first to patent a process for extrusion. In 1797, he did so to make lead pipe. This approach — albeit primitive by today’s standards — set the stage for later innovations. He forced the metal into a die by using a plunger that he held in his hand. By 1820, a hydraulic press created by Thomas Burr made the process easier. In 1894, Alexander Dick invented the first hot extrusion press. It was with this invention that the extrusion process could be extended to work on nearly all non-ferrous alloys.

How Aluminum Extrusion Changed the World

With improvements in extrusion processes came a significant increase in the amount of cut and finish manufacturing projects that could be completed. This dramatic risk was particularly notable within the automotive industry. However, the auto industry is not the only one that has adopted aluminum extrusion and enjoyed its benefits. While wires and pipes were the bulk of the earliest extrusions, today that can be found in diverse environments spanning the high-tech aerospace industry to sporting goods and more.

The industrial sector — particularly the automotive business — was the recipient of much of this newfound supply of aluminum but it was not its sole focus. During the first and second world wars, aluminum extrusion and its ability to reduce lead times made it possible for aircraft to be manufactured quickly and accurately. It was this reliance on aluminum extrusion that served as a propellant of the method beyond its use in the automotive, military and aerospace industries. While still heavily in use in these industries today, the process is also used extensively in everything from consumer goods to housing and more.

The Future of Aluminum Extrusion

Aluminum extrusion continues to break new ground with improvements in materials and processes as they are tested, expanded and implemented. Precision and accuracy are possible with these technological advances. Having the ability to use aluminum — with its lightweight and diverse properties — improves the performance of the part.

3ERP works extensively with aluminum, along with a variety of other metals and materials. We encourage you to contact us with any questions about our services or to learn how we can partner with you on your next project.

Share this blog: