Week 1 Day 1

We met our Prefab facilitator and fab guru Francisco today who explained and excited us about Fabacademy, his experience in fabacademy and the weeks of making to come.
 

The ugly truth behind the modern era and capitalism is the huge amount of resources going to waste as in lieu of pleasing the consumers. More products are created than the number of consumers and the margin of profit is good enough to cover the loss of wastage. This doesnt cover the cost of environmental impact. This is highly inefficient and unsustainable. One option is personal fabrication.

Fabacademy is known as How to make almost anything in MIT. When you go through the course you will be equipped with knowledege of various concepts and skills of topics broadly coming under mechanical and electrical engineering. However it doesnt delve into the details of this fields, it hand picks certain skills of rapid prototyping physical and electrical objects. You are not going to learn the equations of a beam or law of electrical current, but you will be capable of using shopbot, 3d printer or motors and sensors to make something useful.

Digital manufacturing- modular manufacturing- imagine just like you assemble lego pieces to make a structure having a basic form, what if you could do similar thing with almost anything. Your mobile phone would be a cluster of modules, maybe a camera, light, gps, gsm modules put together. What happens if it malfunctions? The modules can be separated debuged and new module can be attached in place of damaged or you dissassemble the module use it in a robot which does something for you. Now you dont have to throw the entire mobile, you reuse or reconstruct it and it will still not be useless waste.
Fabacademy is the brainchild of Neil Gershenfeld, professor at Center for Bits and Atoms (CBA) MIT who is working in cutting edge of this idea. Fabacademy is also form of this idea.
You use stuff from the fablab and take it apart and reuse to make something else. That is why Fablab has a standard inventory. All over the world its the same. All over the world people collaborate using this platform and create something beautiful.

The fabacademy way of Learning- In fabacademy we collaborate and learn. We learn from peers who are knowledgeable from different fields to help you understand something you dont know about the field better.
And you pull a packet of knowledge which you specifically require from some people who know or are guru in that area. The Fabcademy has a weekly structure, you work on one field in a week. If you take a university course in similar field you will learn the skills in a range of a semester or a many years. This is compressed in to a week. Like you will learn about how to design PCB and stuff it and make it work and debug in a weeks time but you wont be expert at designing PCB. But you'll be capable of making a PCB to your needs and imagination.
This requires very good time management and focus. The 6 months are going to be like a boot camp but extended to 6 months. You need to be able to quickly do protoype of design soon and test soon and fail and do different version in limited time and do a lot of things in parallel.
Sharing- Francisco says sometimes it is not there if it not there in your documentaion. The main purpose of the fabacdemy is you learn and you share your learning. That requires you to put it online and make it opensource. You will be graded and evaluated based on what learning you share.


Week 1 Day 1

We met our Prefab facilitator and fab guru Francisco today who explained and excited us about Fabacademy, his experience in fabacademy and the weeks of making to come.

The ugly truth behind the modern era and capitalism is the huge amount of resources going to waste as in lieu of pleasing the consumers. More products are created than the number of consumers and the margin of profit is good enough to cover the loss of wastage. This doesnt cover the cost of environmental impact. This is highly inefficient and unsustainable. One option is personal fabrication.

Fabacademy is known as How to make almost anything in MIT.

Preparing Laptops and Lab Computers

Since fabacademy philosophy roots in opensourcing it only makes sense that Ubuntu and the free softwares are used. This allows free and ope access to anything and everything that is done in fablab. It allows repetability and a common framework that anyone can work with. One of most important of them is the OS itself which is the linux based UBUNTU system.

Creating digital accounts

During fabcademy you will be evaluated through your documentation which explains the world and the remote mentor or Neil what you have done. There will be times when your projects will be recommended by your remote mentor to higher faculty or Neil. They will see your website or the files you created. For these reason you need to learn to effectively express your work in a document. They should be online and freely available to anyone, they are opensource.

Day 4 week 1

Lab maintenance and Material handling

I took charge of Vinyl cutter and Roland Modela

I learned how to better handle the vinyl rolls. The vinyl rolls when kept vertically deform and get damaged at the edge which happens due to it not being able to support its own load properly. The correct way to keep a vinyl material is horizontal and the rolls to be taped at the open edge after use so that they don’t become loose.

The vinyl rolls were kept on the ground earlier.

Vinyl cutting

Used to make sticker and best use is to make PCB that are flexible. Can cut copper, epoxy and vinyl sheets.

Loading the material 

Use this lever to release or secure the vinyl.

Materials should be between the two translucent patches as shown in the picture. These have rough surface in order to grip the papaer better. The wheels should secure the paper when the lever is engaged.

Day 2 w2

Laser in our fablab is a trotec speedy 100 with that we have an atmos exhaust filter from trotec. Here's the laser machine and our super cool prefab guide and fabguru Francisco explaining about the filter system.

Polycarbonate lid and Atmos Exhaust Filter system

Filter parameters

Things to watch out for

Exhaust filter should be on.

Frank gave us introduction to antimony. And we proceeded print out few things in 3d printer.

Antimony

Antimony is a great software and very easy for beginners in 3d modeling. Once you get tuned to antimony you'll probably not require any other 3d modeling software for much of 3d modeling needs. I'll note down few features of antimony although you'll relate to it if you are a involved in 3d modeling or a mechanical engineer or mathematician.

Molding Casting and Roland Modela

The basic idea for this session is to create an 3D object through computer and try to make it in machinable wax in such a way that a molding pattern is created directly from it. Roland modela will machine the wax. We will try to replicate this object by creating a silicone mold and later use the silicone mold to cast hard plastic into it.

Day 5

Shopbot

Notes:

Designing for milling

Due to tool radius inner corner of a hole or a pocket cant be sharp. Overmilling is advised in such cases.

Good design guidelines for milling.

http://blog.inventables.com/2014/06/learn-about-milling-inside-corner.html

http://www.efunda.com/processes/machining/mill_design.cfm

Better to use antimony to design material to be milled.

Dia max to be used for milling in shopbot- 6mm

Dia max to be used for milling in roland -3mm.

Week 3 Day 1

This week we move to electronics design and fabrication.

Today we started with electronics production. The goal was to fabricate a pcb from an already existing design. We use roland modela to fabricate the PCB.

Assignment: to fabricate a version of fabISP using Roland modela and fab modules.

Process

We downloaded the the following designs.
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