Google images

​How to remove the background of a picture for free?
​To remove the background of a picture, go to clipdrop.co/remove-background, and upload your image. Clipdrop will remove the background for you, and you will be able to download your HD image for free.

And more ...
No matter if you want to make a background transparent (PNG), add a white background to a photo, extract or isolate the subject, or get the cutout of a photo - you can do all this and more with remove.bg, the AI background remover for professionals.

​Photo Enhancer
By using the best Enhancer to make blurry pictures clear, you can recover those special photos that you left abandoned in your hard drive. Even the most experienced photographers miss the focus or get some blurry and soft images sometimes.

Search Engine for 3D printable Models
DYC Asia is the licensed distributor in Asia for DipYourCar.com® Brand products such as DYC Colour Pro Kit, DIP Pearls®, DIP Pearl Top Coat, Plasti Dip® Aerosol Spray, Plasti Dip® Enhancer Spray, Plasti Dip® Spray Gallons and Sprayer Accessories etc. DipYourCar.com is world famous for connecting Plasti Dip and cars. Browse our site and enjoy!
Capacitance

OMRON Forehead Thermometer​ MC-720
In -6 Deg C cold storage for a while (before and after)

Universal clip type
​60x LED microscope
(for smart phone)
​常见弹性体邵氏硬度A-D,P对照表及测试方法
Not applicable for silicone
​0.03 mm

​Polyimide (PI) tape: 0.08 mm
Polarizer
Water baby
PVA glue

NFC read/write-able
UV lamp: 6 W, 405 nm
365 nm/405 nm
​NEXTTORCH C2 250 流明 2AA 手电筒用户手册
fnw_manicure_led_micro_uv_lamp_nail_dryer_machine_usb_portable_micro_home_use_tools_.___shopee_singapore.pdf
File Size: 366 kb
File Type: pdf
Download File

Protection
When working with UV light, particularly in processes like UV curing or cross-linking, there are several safety precautions to consider due to the harmful effects of UV radiation. Here are the main safety concerns and guidelines:
1. Eye Damage (Photokeratitis and Cataracts)
  • Risk: UV radiation can cause damage to the cornea, leading to conditions like photokeratitis, a painful inflammation similar to sunburn but on the eye. Long-term exposure can increase the risk of cataracts.
  • Prevention:
    • Always wear UV-blocking safety goggles or face shields with proper ratings (ANSI Z87.1 or equivalent).
    • Avoid looking directly at UV light sources.
2. Skin Burns
  • Risk: Prolonged exposure to UV radiation can result in skin burns, akin to sunburns, and long-term exposure may increase the risk of skin cancer.
  • Prevention:
    • Wear UV-blocking gloves and long-sleeved lab coats to cover exposed skin.
    • Use sunscreens with broad-spectrum (UVA/UVB) protection if skin might be exposed.
3. Ozone Generation
  • Risk: Some high-intensity UV systems (especially in the UVC range) can generate ozone, which can irritate the respiratory system.
  • Prevention:
    • Ensure proper ventilation in the work area.
    • Consider using a fume extractor or a UV system that limits ozone generation.
4. UV Exposure to Non-Targeted Areas
  • Risk: Reflected or scattered UV light can affect areas beyond the immediate exposure zone.
  • Prevention:
    • Use shields or enclosures to contain the UV light.
    • Ensure that the reflective surfaces near the UV source are minimized or treated to reduce reflection.
5. Handling UV-Curing Resins/Adhesives
  • Risk: Many UV-curable resins or adhesives can cause skin irritation or allergic reactions.
  • Prevention:
    • Always wear appropriate gloves (nitrile or another chemical-resistant type) when handling UV-curing materials.
    • Work in a well-ventilated area or under a fume hood to avoid inhaling vapors.
6. Fire Hazards
  • Risk: UV lamps, especially high-intensity ones, can generate heat, and certain chemicals used in UV processes may be flammable.
  • Prevention:
    • Keep flammable materials away from the UV light source.
    • Ensure that your UV light system is well-maintained and has appropriate cooling mechanisms to prevent overheating.
7. Electrical Safety
  • Risk: Many UV systems use high-voltage power supplies, which can pose electrical hazards.
  • Prevention:
    • Ensure the equipment is properly grounded and regularly inspected.
    • Turn off and unplug the system before performing maintenance.
By following these guidelines, you can minimize the risks associated with UV light exposure during your work.
NEJE OD 4+ 190nm-540nm/900nm-1100nm Wavelength UV/Purple and Blue Laser Safety Glasses (Orange)
Joanlab - Heating Mantle
Model: HMSC-500ml
Digital Temperature Control Heating Mantle with Magnet Stirrer
Capacity: 500 ml
Max Temp:300℃

​LACIS CORD MAKER

Embellish-Knit

Touch pad

​Agilent 34410A

8fa5daaed6cc099ef4341159eed2662a.mp4
File Size: 802 kb
File Type: mp4
Download File
keysight官网有个软件，用旧版本的就可以，是德科技，原来的安捷伦，keysight BenchVue 软件，找旧版本的，16年以前的，​新版本的要收费

Laser engraving machine
Covering "paper" atop PMMA
Cardboard
  • 邮箱：[email protected]
  • 电话：0769-22288386
  • 手机：135 4940 3943
  • 地址：广东省东莞市南城街道隆溪路5号高盛科技大厦301雕将科技
  • 工作时间：周一至周五, 09:00-18:00（北京时间）

​缝纫机

​新手入门 | 家用缝纫机的用法及线迹修正
电脑缝纫机使用说明书（Brother）
bc2500ug01ch.pdf
File Size: 1981 kb
File Type: pdf
Download File
​Textile Building
​​200 Jln Sultan, Singapore 199018

​高分子聚合物的材料改性解决方案

​伽马射线或电子束辐射
辐射装置研发制造和辐射加工服务
​　　1、辐射交联聚乙烯
　　2、热收缩材料
　　3、发泡、吸水性材料
　　4、高强度医用硅橡胶等
　　5、聚合物复合材料、纳米材料制备等
​Kraton polymers are styrenic block copolymer (SBC) consisting of polystyrene blocks and rubber blocks. The rubber blocks consist of polybutadiene, polyisoprene or their hydrogenated equivalents.
SEPTON™ is a styrenic thermoplastic elastomer developed by Kuraray. It is a block copolymer that consists of styrene-based hard-blocks and a diene soft block. SEPTON™ is used in a variety of TPE compounds. SEPTON™ can be processed in a wide variety of forms, including consumer goods, soft touch grips and automotive components.
HYBRAR™ is a triblock co-polymer with polystyrene end blocks and a vinyl bonded rich polydiene mid-block. HYBRAR™ exhibits high vibration damping and shock absorption properties. ​
​LenticularMobi
​We are professional in 3d lenticular lens, we make all lenticular,and we only make lenticular

Lenticular lens
​感温变色微胶囊、感光变色微胶囊、功能性微胶囊、变色龙系列、感香微胶囊、防伪识别
​HONG YE SILICONE RUBBER
深圳市红叶杰科技有限公司 ，是一家专业从事硅胶、硅橡胶、模具硅胶、有机硅及其液体硅胶原料的生产、研发、销售为一体的科技集团公司

Wah Sin

Plastic resin
遇水膨胀止水胶、遇水膨胀止水胶条、遇水膨胀止水条、遇水膨胀橡胶止水带、聚氨酯遇水膨胀止水胶、P201止水胶、遇水膨胀密封胶等
Water-swelling Sealant with High Cost Performance
​AB胶是两液混合硬化胶的别称，一液是本胶，一液是硬化剂，两液相混才能硬化，是不须靠温度来硬应熟成的，所以是常温硬化胶的一种，做模型有时会用到。常用AB胶有：快速/中速固化AB胶水，塑料粘金属胶水，粘金属AB胶水，耐高温AB胶水，PU聚氨脂软滴胶，水晶硬滴胶，单组分固化粘合胶，高性能灌封胶粘剂
​ 硅胶胶水是指硅胶和其他材质粘接的胶水。具体应用有：硅胶粘硅胶、硅胶粘ABS，硅胶粘尼龙、硅胶粘PC、硅胶粘不锈钢、硅胶粘五金、硅胶粘陶瓷、硅胶粘玻璃等。主要应用行业胶水有：医用硅胶胶水，食品级硅胶胶水，硅胶粘金属胶水，硅胶粘塑料胶水，电子灌封胶，耐高温硅胶胶水，导热硅胶，双组份硅胶胶水
​硅胶处理剂专用于硅橡胶材料的表面处理，能有效改善硅橡胶的表面极性，提高其粘接性能。常用硅胶处理剂有：硅胶/软胶粘合处理剂，硅胶包金属处理剂，硅胶粘尼龙表面处理剂，液态硅胶包PC处理剂，液态硅胶包金属处理剂，液态硅胶包塑胶处理剂，硅胶背双面胶处理剂，脱胶清洁剂，促粘剂，硅胶底涂剂，橡胶处理剂，TPU处理剂，金属粘合处理剂
​UV胶,又叫无影胶水或紫外线胶,是一种单组分UV可见光固化改性丙烯酸脂结构胶,常用UV胶水有：粘塑料UV胶水，粘PET UV胶水，粘TPU UV胶水，粘金属UV胶水，电子排线补强UV胶水,医用级粘合胶,粘玻璃UV胶水,防水UV胶水，镜头模组UV胶，硅胶UV硬点胶，硅胶UV软点胶
​专注硅胶胶水研发生产
粘合剂、有机硅材料制造商
接主体
  • 硅胶


​粘接工艺
  • 常温粘接
  • 热硫化粘接
  • 加成型热固化粘接
  • 加热粘接
​粘接对象
  • 硅胶
  • 铁
  • 不锈钢
  • 铝合金
  • 铜
  • 镀锌件
  • 玻璃
  • PI
  • PET
  • PVC
  • PA/尼龙
  • PC
  • PP
  • PPSU
  • 电镀件
  • 环氧树脂

Components, electronics...
​SPECTRA-TEKNIK (S) PTE LTD
66 Tannery Lane
#01-04CM (2nd Floor) Sindo Building
Singapore 347805
Tel:    65-6748 9029
Fax: 65-6842 4048
E-mail: [email protected]
TE Connectivity and nVent, which are unrelated companies, both sell products under the Raychem brand.
​Everything You Need To Bring Your Ideas To Life
​3DF ZEPHYR
is the photogrammetry software solution by 3Dflow
to automatically reconstruct 3D models from photos: deal with any 3D reconstruction and scanning challenge.
No matter what camera sensor, drone or laser scanner device
you are going to use.
N95

​3D扫描仪成像：15款手机上的顶级APP

​Video Editor
Kapwing is a free online video editor. Simple enough to learn without tutorials, yet powerful enough to support full creator workflows, Kapwing offers a robust video editing solution for every creator. Kapwing is a non-linear editor, meaning that video clips can be rearranged, appended, trimmed, and much more on a single timeline.
Within Kapwing, creators can splice and combine video clips, trim and cut inline, add transitions, overlay text and images, generate subtitles, and upload music. On the canvas, adjust the position and layout of your video and add special effects to make eye-catching and shareable videos. Add in audio, mix tracks, and import from YouTube to let your creativity shine.
​Heightmap to STL
by mfussi January 02, 2012
​Summary
Small (and dirty ;) ) script to convert grayscale heightmaps to stl models. Usable for landscapes or terrain prints.
Supported Image Formats: GIF, PNG (preferred), JPEG, BMP
​Instructions

Please follow this tutorial:
http://adv-geo-research.blogspot.de/2013/10/converting-dems-to-stl-files-for-3d.html (Special thanks to James Dietrich for writing such a good guide)
After you finished step 10 convert the image with heightmap2stl.
Usage:
java -jar heightmap2stl.jar 'path to imagefile' 'height of model' 'height of base'
Arguments:
'path': Path to the heightmap (png, jpegs,... )
'height of model': Z scale of the model. Height of the max elevation.
'height of base': Height of the base, the model stands on.
https://sourceforge.net/projects/heightmap2stl/?source=directory - Feel free to contribute.
​Turn your 2D design into a 3D print.
2nd choice

Sketchup
​Tinkercad is a free, easy-to-use app for 3D design, electronics, and coding. It's used by teachers, kids, hobbyists, and designers to imagine, design, and make anything!

​Fusion 360 for students
Autodesk® Fusion 360™ is the only tool that unifies design, engineering, and manufacturing into a single cloud-based platform.
  • DESIGN. Quickly iterate on design ideas with sculpting tools to explore form and modeling tools to create finishing features.
  • MANUFACTURING. Create toolpaths to machine your components or use the 3D printing workflow to create a prototype.
  • ENGINEERING. Test fit and motion, perform simulations, create assemblies, and make photorealistic renderings and animations.
Accelerate your ideas and turn your concepts into a product with a single solution. Fusion 360 is available for Mac and PC.

​Canva for Windows
​A free powerful design tool for Windows PCs
​
Canva is one of the most popular graphic design tools in the world. Within a short period of time, it has become a renowned name in the industry. The program lets you create presentations, social media posts, posters, pamphlets, and other forms of visual content. Canva offers millions of stunning and professional layouts, allowing you to choose a design to your preference. The application comes with many features expected from a design software and is already compatible with Windows 11.
Canva download offers numerous vectors, stock images, fonts, templates, and illustrations. Compared to MS Paint, AutoCAD, Tux Paint, and other image editing tools, this software offers unique layouts that you can use a template or edit an existing design, upload a photo, or work on a new creation from scratch. With a wide range of preset filters at your fingertips, you can enhance the visual appeal of your creation. Canva is available for free but with limited features. The premium account will give you access to all the advanced image editing tools this product offers.

CapCut

​Free all-in-one video editor for everyone to create anything anywhere

​Flexible editing, magical AI tools, team collaboration, and stock assets. Make video creation like never before.
​可以替代Matlab的几款开源科学计算软件
GNU Octave：GNU Octave 是一个功能强大的开源科学计算软件，与Matlab语法高度兼容。它提供了丰富的数值计算、线性代数、统计分析、绘图等功能，并支持创建自定义函数和脚本。
https://octave.org/download.html
Scilab：Scilab 是一个开源的数值计算软件，类似于Matlab。它具有强大的数学库和绘图功能，适用于科学计算和工程问题。Scilab 还提供了广泛的工具箱，涵盖信号处理、优化、控制系统等领域。
https://www.scilab.org/​
FreeMat：FreeMat 是一个免费的开源数值计算软件，类似于Matlab。它提供了矩阵操作、绘图、信号处理、最优化、统计分析等功能。FreeMat 支持脚本编程和函数扩展。

Python + NumPy/SciPy：Python 是一种通用的高级编程语言，结合NumPy（数值计算库）和SciPy（科学计算库），可以提供类似于Matlab的强大功能。NumPy 提供了数组操作和数学函数，而SciPy 提供了更多高级科学计算和数据处理的库。

Julia：Julia 是一种高性能的动态编程语言，旨在提供与Matlab相似的表达能力和性能。Julia 具有快速的数值计算和并行计算能力，并支持高级数据分析、绘图和可视化。
https://julialang.org/downloads/​
​MODERN TECHNICAL COMPUTINGFor three decades, Mathematica has defined the state of the art in technical computing—and provided the principal computation environment for millions of innovators, educators and students.

​IRFANVIEW GRAPHIC VIEWER

IrfanView Plugins​

​MeshLab

​the open source system for processing and editing 3D triangular meshes.
It provides a set of tools for editing, cleaning, healing, inspecting, rendering, texturing and converting meshes. It offers features for processing raw data produced by 3D digitization tools/devices and for preparing models for 3D printing.
​Get step-by-step solutions to your math problems

​Microsoft Mathematics
​Ezgif.com is a simple online GIF maker and toolset for basic animated GIF editing.
Here you can create, resize, crop, reverse, optimize, and apply some effects to GIFs.

​GIF Animator

​Create or extract animated GIF files using GIF Animator. Add raster (exif, bpg, bmp, tiff, png, jpeg) images to a list, set frame delay interval and create a animated GIF. Also select animated GIF files and display individual frames in designated folders.
​PPT居然可以制作出3D效果

​Microsoft GIF Animator

​Create your own animated GIFs in a few seconds

​LaboTex
​The Texture Analysis Software for Windows
Crystallographic texture analysis of rocks, semiconductors and superconductors, ceramics and composites, polymers, metals and alloys.
​Crushes cyberthreats.
Restores confidence.
​Work more efficientlySelect text in any application and simply press Ctrl+C twice to translate it. Adapt the translation as you like; copy it, or paste it directly back into your text; keep working.

​如何从零开始用WordPress搭建专业网站
​Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications
Fabric printing

Textile Building
​200 Jln Sultan, Singapore 199018

​ESDEP Course
​European Steel Design Education Programme

Acetone

​聚合物在不同溶剂中的溶解性能

​MSDS of MM5520
mm2520-2512020.pdf
File Size: 17 kb
File Type: pdf
Download File

Ink555

​常用树脂的分类与特性

19种弹性体