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IIT Techfest 2020 – Competition: Design for Defense

shibashis — Thu, 22 Oct 2020 09:18:16 +0000

Contest Challenge : Simulation-Driven Design of Army Shelter

The Defense forces need to build quickly deployable Army shelters to accommodate the increased deployment of forces at the border posts. The engineering challenge here is to quickly validate an existing design … Read the rest

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As an Engineering R&D Head, What Else Can You Do to Slash the Product Development Time Further? May be SDD will Help Here

Shibashis Ghosh — Sat, 03 Oct 2020 17:36:08 +0000

Thanks to the advancement and accuracy of the FEA and virtual validation technologies, 48+ months new vehicle development programs are gone for good. However, with increasing geo-techno-polito-economic pressures even 36+ months started looking long.

So, what next?

Before jumping the … Read the rest

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Predicting 3D Printing Quality using Machine Learning – Part 2: Machine Learning Model Building and Prediction Accuracy

Shibashis Ghosh — Sat, 21 Dec 2019 16:16:13 +0000

In the last part of the data science tutorial, we saw how to establish the correlation between the typical parameters of a FDM 3D printing machine i.e., layer height, nozzle temperature, material etc. and the printed part quality parameters i.e., … Read the rest

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Predicting 3D Printing Quality using Machine Learning – Part 1: Correlation Study

Shibashis Ghosh — Mon, 09 Dec 2019 13:35:50 +0000

Got an interesting data set, its about FDM printed parts quality parameters such as strength, roughness, distortion and the machine parameters such as nozzle temperature, fan speed, bed temperature, materials etc. There are total 10 features and 50 instances. … Read the rest

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5 Lessons Learnt While 3D Printing in ABS for First Time

shibashis — Sun, 13 Oct 2019 03:06:30 +0000

I must admit that ABS is little difficult material to handle in FDM type additive manufacturing. Although this is not the first time i am using ABS for printing my stuffs, still i thought the learnings are worth sharing.

I … Read the rest

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ML for Beginners – Use Machine Learning to Predict Millage of a Car

Shibashis Ghosh — Sun, 30 Jun 2019 06:49:48 +0000

In this data science article we will use a dataset which has the following attributes:

1. mpg: continuous

2. cylinders: multi-valued discrete

3.
displacement: continuous

4.
horsepower: continuous

5. weight: continuous

6.
acceleration: continuous… Read the rest

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INR 0.8 Million per Kg is the Cost of NOT Doing Design Optimization – How?

Shibashis Ghosh — Tue, 06 Nov 2018 13:14:29 +0000

Trade-off, to my opinion, is the major reason of optimization driven design. Trade-off among performance, time to market, regulatory requirements and all this at a right COST.

However, while calculating cost, a broader view taking all the processes for … Read the rest

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How to Make Line Follower Robot without Using Microcontroller

Shibashis Ghosh — Sat, 15 Sep 2018 18:25:39 +0000

Line follower robot (LFR) will probably the first robot you would like to build to start your hobby journey in the exciting field of robotics.

Parts required:

1. Chassis (acryalic or metalic) – should have holes for mounting the motors, … Read the rest

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Design for Additive Manufacturing Worksheet

Shibashis Ghosh — Sat, 07 Jul 2018 13:14:41 +0000

With the popularity and development of additive manufacturing process, the process of creating good Design for Additive Manufacturing (DfAM) is getting complicated.

Making decision on whether a design is really good to go for AM or not is getting difficult … Read the rest

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3D Printing Simulation Software – Are They Capable Enough?

Shibashis Ghosh — Sun, 16 Jul 2017 05:37:04 +0000

I am amazed by the pace at which not only the additive manufacturing hardware and machines but also the simulation software for 3D printing are evolving.

Given the fact that the whole 3D printing industry itself still is in its … Read the rest

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