Large 3D Printer

I was reminded by a few colleagues that I have not updated this blog in years now. I guess, I’ve just been too busy playing to blog.

When I had moved to the US (2014), I had backed a kickstarter project called Cobblebot. I’m not even going to link to it here as it was a really bad experience, however it did get me started with 3D printing. With the help of fellow backers on Google+, I was able to build a decent printer that provided me lots of fun. I had never built it for anything serious and most of the things I ended up printing were downloads from thingiverse. But, it was fun nevertheless:

In it’s final version it was able to print a size of 14″x14″x14″; though I never printed anything that large. I built and re-built it multiple times with new upgrades all the time; mainly using ideas from the Google+ community

The first print was a hollow cube:

But went on to print lots of great prints once I had the settings and upgrades done. Some examples include:

One of the best upgrade I did was change the controller from RAMPS that came with the kit to a Cohesion3D ReMIX. It’s 32-bit, runs Smoothieware and makes the motions so smooth and results so amazing, I simply don’t know why everyone still uses the RAMPS controllers. I also wrote a blog post for 3DPrinterChat that describes how you can use the Smoothie compatible boards to easily replace your RAMPS controller. 

Smoothiefy Your Printer

Finally, the printer looked like this, before I disassembled it while moving from the US to UK:

Now, in  London, I’ve started to rebuild it and decided to supersize it:

Don’t ask why I did it; even I don’t know 🙂

Lessons while travelling in South India

Some lessons from my recent trip to Kodai Kanal:

  1. Do not underestimate Bangalore traffic
  2. RB1 is not a separate coach number – it means B1 with RAC seat – nearly missed my train because I couldn’t find the coach.
  3. Railway station with the same name as the city you wish to reach may not be in the city – Kodai Kanal Road station is almost 80 km from the city
  4. Do not trust google maps – shows Elephant Valley Resort right next to the Kodai Lake – its around 20 km from there.
  5. Do not book a non-AC bus – just because you do not think you’ll need AC – the bus was uncomfortable as hell.

 

 

Replaced my macbook keyboard

A couple of months back, I had “cleaned” my macbook with Colin and ended up destroying my keyboard 🙁

Also, my extended warranty had expired just a few days back; so when I went to the Apple support centre – they gave me an estimate of ~15,000 INR. Considering that the macbook is >3 years old, and that I have 2 other laptops at home, the cost was not justified.

I searched the net for options and finally came up with the following:

Keyboard from: http://www.aliexpress.com/item/New-US-Keyboard-For-apple-MacBook-Unibody-A1342-MC516LL-A-MC207-2010-Free-Shipping/617432777.html

Tools from: http://www.aliexpress.com/item/Free-Shipping-15pc-Screwdriver-Torx-T5-T6-T8-T10-T15-Bit-PH-Tool-Set/738450527.html

And Instructions from:

http://www.ifixit.com/Guide/MacBook+Unibody+Model+A1342+Upper+Case+Replacement/2185/1

As these instructions are for replacement of the entire upper case – there were a few more steps and brute force required to pull out the old keyboard and replace the new one – in the process – I broke a few plastic parts – but the new one works like a charm 😀

Brainbench Games

Got the highest score in the WORLD for Financial Management (U.S.) in the Brainbench Games – check the link below… you’ll have to search for my name – but its there 🙂

http://www.brainbench.com/xml/bb/landing/offer/promotion.xml?contentId=2944