Category Archives: Blog

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Social Impact of 3D Printing in India

Category : Blog

According to the Corporate Annual Growth Rate (CAGR), the 3D printing industry has grown by 25.9% in the year 2015 leading to an industry of  $5.165 billion. Additionally, it is expected to grow more than 31%  per year between 2014 and 2020 to eventually generate over $21 billion in worldwide revenue.

3D Printing in India

In India, 3D printing is emerging as a new innovative and attractive market as it leaves you in wonder as to how basic 3D printers can give form to your imagination in a matter of hours depending upon the complexity of your design. India has seen boost in the number of people taking interest in 3D printing with the emergence of local 3D printer manufacturers. Basic 3D printing and DIY kits are being sold at a starting price of Rs 20,000/-.

Indian market has not completely adopted higher end AM systems. Every year service bureau are growing rapidly in India. Where nowadays, Indian market for AM products and services is 3.3% of total Asia Pacific market, in India 3D printer market is projected to cross $79 million by 2021.

Additive manufacturing in India by Industries:
According to the AMSI Survey of 2016, the academics is the sector being served by 3D printing technology the most by accounting to around 27% of the 3D printing market in India. The other sector are the Service Bureaus with around 18%. The rest of the industries being Automotive industries, Consumer products, aerospace and others.

current impact

Innovation: 3D printing has brought a boom in the innovation of new 3D printed products. 3D printing is helping innovation reach new horizons as new ideas are being implemented in creative ways. Following is an image of a bike accessory 3D printed at Botshape.

 

 

 

 

 

Research: A lot of research is being carried out in the 3D printing sector as more companies are taking interest in this sector and new companies emerging to invest upon this innovative newly emerging technology. Following is an image of a 3D printed human skull printed from CT Scan for research purpose in the medical field.

 

 

Affordability: 3D printed products are affordable with low margin as the raw material for 3D printing is easily available at reasonable prices and the cost of production is not heavy as compared to the amount customization available in 3D printed products. Above we share an image of a 3D printed Medical Prosthetics hand for Nepal’s Earthquake Victim. We have come across several engineering and architectural colleges in Delhi who are executing their semester projects through 3DP.

Sharing Ideas: 3D printing has paved a new way for the innovation junkies and the idea sharing community as people are coming together to share their experiences and ideas in the field of 3D printing.
Ease with Complexity:  3D printing has brought in a new wave of innovation and ease of complexity to go together as people are coming up with creative ideas to make this happen. One of the example is modified air intake system for a formula student team that is based out of Delhi.

air intake


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Reducing the file size for 3D printing

Category : Blog

Working with 3D CAD models can be trouble sometimes due to large file sizes which also makes it difficult for 3D printing. If a file is very heavy (say more than 100MB), it will be take a long time to slice the file or in some cases slicing program can crash also. The best way to overcome this issue is to reduce the file size without compromising the quality that you need.

But firstly, let’s understand why the file size is too heavy. STL files, generally used for 3D printing, comprises of mesh in the form of triangles. The number of triangles are responsible for quality and file size. A 3D model (stl file) with high number of triangles will have very high level of detailing but the file size will also be very heavy. Now suppose if we reduce the number of triangles in the same file, the level of detailing will reduce but the file size also reduces. So it is recommended to adjust the number of triangles to such an extent that we get required level of detailing while keeping the file less heavy.

There are many programs that you can use to reduce the file size and see how it affects the detailing. The most common and easy to use is Autodesk Meshmixer.

Let’s reduce the size of the following 3D model having 10996 triangles.

3d print file reduce 1

Step 1: Import the model (stl file) in Meshmixer. The number of triangles are mentioned at right bottom.

Step 2: From left menu choose Select tool. Then double click on the model and click on Edit option. Select Reduce.

3d print file reduce

Step3: Under Reduce feature, there are 3 options.

  1. Percentage
  2. Triangle Budget
  3. Maximum Deviation

You can choose any option to reduce the number of triangles which also reduces the file size.

For example, the number of triangles in the above model has been reduced to 8796 from 10996 without much difference in the quality.

3d print file reduce 2


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3D Printed Prosthetics for earthquake hit victims of Nepal

Category : Blog

With the sun rising bright, the chirping of birds and hustle and bustle among the people to gear up for their daily routine, that day started as normally as possible in the lives of people in Nepal. Unfortunately, this usualness of the day was soon lost when Nepal was hit by a massive earthquake on 25 April 2015.

A large number of people were rendered disabled as a consequence of the earthquake. It has been more than a year but such victims couldn’t get any cure for their suffering.

Recently, Botshape Technologies with the help of Society Welfare Council National Disabled Fund, Nepal served two women whose hands were injured due to the earthquake.

3d printed prosthesis

 

In order to give them a normal life, the team of engineers, physicians and designers of Botshape Technologies worked with the doctors from Nepal to develop flexible and durable 3D printed prosthetics for these two women.

3D Printed Prosthetics came as a blessing in the life of Deepa G.C. from Gulmi District of Nepal and Shanta Khanal from Pyuthan District, Nepal.

Deepa G.C. was going through the difficulties in day to day work due to her handicapped hand. Throughout she was dependent on her family for helping her in household work. It has been a painful time for her and her family; this is when she had thought of reaching out to the doctors at Society Welfare Council National Disabled Fund. Initial steps to get the prosthetics were bit tedious for her since she had to visit the doctor multiple times for dimensions and sizing. Fixing up the prosthetic was hardly one day task for the doctors since everything was pre-assembled. This was the moment of ecstasy for Deepa to have both her hands back and becoming an independent person as she was before the earthquake had hit.

image 2 rotated
IMG-20150904-WA0002

 Deepa’s left-hand fingers injured           3D Printed Prosthetic prepared
after the earthquake.                               for Deepa

For Shanta Khanal, being able to live a normal livelihood is a new goal figuring predominantly into the picture as she passes every day and wants to be doing many of the activities herself.

blogImage

Shanta Khanal lost her fingers during the earthquake when heavy furniture fell on her fingers damaging the nerves of her left hand. Her family looked forward to the day for her to have all sorts of functionality once her fingers are outfitted with the prosthetic over her hand and wrist. Her family had never thought of getting the prosthetics due to high development cost of these prosthetics but little did they know about the 3D Printing technology. It was only when the doctors recommended them an affordable solution for Shanta in the form of 3D Printed Prosthetics that they were able to revive the functionality of her hands.

blogImage (1)

Keeping in view the applications of the prosthetic, they chose PLA material for developing it. The prosthetics were custom made, based on the given dimensions of the existing fingers and hand of Deepa and Shanta Khanal.

The prosthetic was made of several movable parts to provide the flexibility and easy movement of the fingers. The fingers and the wrist are made movable using strings. These prosthetics are fixed using a velcro, for easy removal and cleaning from time to time.With 3D printing, we were able to achieve the accurate dimensions and strength.

In such a way, Botshape Technologies reached out to people in Districts of Nepal where the concept of 3D Printing was completely unheard of.

The team of Botshape Technologies envisions improving the quality of life of every human with 3D printing technology. They have worked on various other projects like industrial prototyping, fashion accessories, architectural designing and much more, that have optimised the execution time of the processes followed by our customers. To know more about Botshape Technologies, visit www.botshape.com or contact at +91 9990750259 or drop a mail to [email protected].


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How 3D Printing speeds up product design process?

Category : Blog

3d printing is being widely used in industries for new product development. Many industries like automotive, aerospace, manufacturing prefer 3D printing (Additive Manufacturing) than other manufacturing process when it comes to test new designs. If you are a manufacturer/developer/inventor, here are some of the reasons why you should try 3D printing.

Shortens product development cycle – With 3D printing, you can make your own prototypes within hours which gives you the ability to finalize your designs and launch your products fast in the market.

Low volume production – Although 3D printing is not considered for mass production but you can use 3D printing for low volume production to check the demand of your products in the market. Once you are convinced with the demand, you can go for mass production methods.

Mass customization – As stated above that 3D printing is not for mass production but 3D printing is the best manufacturing process for mass customization. The ability of 3D printing to customize makes it very useful for medical device industries. You can also make complex geometries with short lead times and lower expenses than other manufacturing methods.

Multiple materials – Now a days, there are many different materials which you can choose to use for 3D printing. Materials like PLA and ABS are commonly used for prototyping purposes. You can also go for metal 3D printing to make your final products like tools and fixtures.


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Filament Comparisons

Category : Blog

This blog covers some of the common filaments that are used for 3D printing. There is no fixed temperature of the hot end and heat bed for the filaments and it depends on the type of 3D printer and also on the filament manufacturers. Here, we have provided the general temperature settings that can be used. You can start from the temperature within the range and then check the quality of your prints. If the print quality is not good, try experimenting with different temperature settings until you get a quality print.

PLA (Polylactic Acid)

PLA is the most common 3D printing material. PLA is bio-degradable and odorless.
Extrusion Temperature = 185°C – 220°C
Bed Temperature = 40°C – 70°C

ABS (Acrylonitrile Butadiene Styrene)

ABS is also commonly used for 3D printing. As compared to PLA, ABS is less brittle and can withstand higher temperatures. As ABS contracts on cooling which may lead to warping problems, heated bed is recommended.
Extrusion Temperature = 220°C – 240°C
Bed Temperature = 60°C – 90°C

PET (Polyethylene Terephthalate)

PET is a high strength polymer and can be used to make plastic bottles or food containers. It produces no odor or fumes when printed and barely warps.
Extrusion Temperature = 210°C – 240°C
Bed Temperature = 40°C – 70°C

Nylon

Nylon offers high strength and is tear resistant. Nylon can be used to make functional industrial parts.
Extrusion Temperature = 230°C – 270°C
Bed Temperature = 60°C – 90°C

Flexible

Flexible material is used to make parts that can bend like stoppers, belts, phone cases. It feels and acts like a flexible rubber.
Extrusion Temperature = 210°C – 230°C
Bed Temperature = 30°C – 60°C

Polycarbonate

Polycarbonate is extremely strong and very resistant to impact.
Extrusion Temperature = 270°C – 320°C
Bed Temperature = 90°C – 105°C


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Some Tips & Tricks for 3D printing

Category : Blog

This blog covers some basic tips and tricks for getting good prints.

A) File repairing in Netfabb

Sometimes when you slice a file, you get unexpected results like model is not manifold, feature missing etc. The easiest way to repair this problem is to use Netfabb. Netfabb offers a powerful & useful tool for repairing STL files. Netfabb Basic is free to use.

netfabb stl file repairing for 3d printing

 

After opening the file in Netfabb, press the ‘+’ Repair icon on top menu. Then click Automatic Repair and select Default Repair and click Execute. The software will repair your file.

B) Problem of warping

This is a very common problem which most people face. If you notice that your print is warping then following tips might help you.

  1. Make sure that the fan and other sources of air are switched off.
  2. Check whether the heat bed is hot enough or not. Increase the temperature of heat bed by few degrees and check if warping still happens.
  3. If you are printing directly on a heat bed or glass, then using a kapton tape or blue painter’s tape might help.
  4. Sometimes, adding a brim or raft also helps.
  5. If you are printing with ABS, you can use some ABS slurry on the glass plate. ABS slurry helps in better adhesion of the print.

C) ABS Slurry

ABS slurry is a mixture of ABS and acetone and helps in preventing warping issues.

  1. Put some ABS material in a glass jar or a small container.
  2. Add some acetone to it.
  3. As you add acetone, ABS will start dissolving.
  4. Wait for some time and stir the mixture.
  5. As there is no standard ratio of ABS to Acetone, you need to experiment what works best for you.

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3D Printing for Visual Impairments

Category : Blog

Read how 3D printing is helping blinds and visually impaired people at

http://www.wonderbaby.org/articles/3d-printing-for-visual-impairments


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3D Printers: Kit vs. Pre Assembled

Category : Blog

If you are thinking of buying a 3D printer but confused whether to go for a Kit or a Pre-Assembled one, then this blog may help you decide. Both have their pros and cons and it is totally up to you which one to buy.

The biggest advantage with Pre-Assembled Printers is that you can start printing from Day 1. You may need to level the heat bed as sometimes the leveling of the heat bed gets changed during transportation and handling. But with time, you may face some other problems also with your printer like slacking of belts, nozzle jamming, and calibration. So you would have to call the supplier/manufacturer everytime an issue comes up.

Similarly, a Kit also has some advantages and limitations. The most common kit available in the market is Prusa i3 DIY Kit which is designed by Josef Prusa. The advantages of a Kit are:

  • Cheaper – Generally, Kits are cheaper than most pre assembled printers.
  • You understand the different parts of a 3D printer which will help you to identify and rectify some common problems. You will be able to calibrate the printer and level the bed easily in future.
  • You will learn various aspects of mechanical and electronics assembly along the way.

The main limitation of a Kit is that it requires a lot of patience. Getting a printer running in your first try is not going to happen. You would have to tweak many things during assembly.

So, if you are among those who like to brainstorm and build their own things, then you should definitely go for a DIY Kit.

For more information on Prusa i3 Kit, please visit the below links:

http://reprap.org/wiki/Prusa_i3
http://reprap.org/wiki/Prusa_i3_Build_Manual

http://reprap.org/wiki/Prusa_i3_Buyers_Guide
https://www.3dhubs.com/3d-printers/prusa-i3


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Hello from Botshape

Category : Blog

As this is our first post, we would like to introduce ourselves, who we are and what we do. We are a 3D printing company that provides 3D printing solutions for all your professional and personal needs. Presently, we are working with different industries to help them develop their prototypes, guides faster and cheaper, cutting their product development cycle from months to days. Unlike CNC and other manufacturing techniques, 3D printing is not only limited to industries. Many hobbyists and students are also getting their hands dirty by building their own 3D printer using Prusa i3 DIY KIT. If you really want to go into the details of 3D printing, we highly recommend you to start with Prusa i3 Kit (which was developed by Josef Prusa). We are continuously trying to upgrade our products and provide better services to customers.

Keeping the things short here, please visit ‘3D Printing Basics’ section at our website www.botshape.com to know more about 3D printing. Also, you can view our presentation on http://www.slideshare.net/botshape/3-d-printing-botshape-47029733 .