Let's Make Robots!

Bob Lifts Bear - The Sequel

Especially for Gareth, who requested a sequel. It's all a bit silly, really, but fun making it. My Robonova has a new head, which I've managed to squeeze a servo, led board, and camera into. The camera isn't very good quality, but is an introduction for me in Object Recognition software. Also included is a simple bot using a Picaxe with 3 servos, 2 for driving and one for "Ted". It has all been done using simple delays and timing in both Robonova and "Ted's Truck". The "gun" is a modified ball point pen and party popper. The "bullet" is filed down plastic.

SI1120 Sensor

This is a new sensor I'm testing out.  Hopefully will be ready to go into the new sumo soon.

Megan40 - UltraViolet Detectors ( IR is going out of fashion )

Megan40 - UltraViolet Detectors ( IR is going out of fashion )

This is my latest FireFly codename Megan40 ...... because she sports 40MΩ feedback resistors

If you need detectors that are not affected by ambient light then i highly recommend using UltraViolet LEDs as detectors.

The detect circuitry is finished - next part is to shoehorn the picaxe 08 onto the back to control servo and UV glowtube.

Getting angry about the availability of electronic components in Europe?

Hi there,

it has been a while and I am still working on the stereoscopic vision issue for my small robot. Meanwhile I learnt, that the Parallax Propeller chip is by far to slow to handle and stream-edit an BT.656 conforming digital video stream, at least for what I have in mind. Therefore I am now working on a hardware-based video filter made of discrete components - a poor man's FPGA, so to say.

Robot Betty9 is ALIVE

My robot betty9 is really cool. I built her over several years. She sings at the Riverside Robot Expo.Robot Betty9 - humanoid

Happy St. Andrew's Day

I'm not what you'd call "religiously observant" but there aren't many holidays that apply specifically to robots or geeks (unless you count Bender's "Robonukkah," which some fans have placed in February and which I'll be sure to bring up around then, possibly with fembots wrestling in petroleum oil.)  So wired.com honored the long list of Scottish inventors in today's "This Day in Tech."

Of special note for hackers/open sourcers is this entry (directly quoted from article):

A stumbling bumbling attempt at a 3D printer

Well this is my attempt a building a 3d printer, I am blaming TinHead for the whole thing, perhaps with some blame beeing focused on CtC as well and let me state here Chris and Tinhead were both a great source of encouragement and help in this on going project. The whole journey started with my seeing Tinheads build of bumble bee  http://letsmakerobots.com/node/32879

Reading Words off Pages and Walls using OCR, Start of Indoor Localization

Today my robot read its first words with its own eyes!  from around 8ft away!

Got Tesseract OCR going on the bot.  Its reading words close up and from distance with large fonts.  This will be the start of my indoor localization system.  Bot will be able to determine what room it is in and where it is within the room to some degree, by remembering what is written where in the house and using it as landmarks for knowing its position, with a little geometry.

I'll post some video of this in action as soon as its polished.

MAKE: Transatlantic Drone Takes to the Sea

The Scout Transatlantic project has broken the world record for the furthest distance traveled by an autonomous unmanned boat, and it is just getting started. Read more on MAKE...

Read GCODE and parse CoOrdinates

So my polargraph had come to a halt, i had it running a processing sketch on a pc, and extracting shade data from images one pixel at a time. it had some cooool effects, im really happy with it but its time to move on.

I found i can convert a line/vector drawing to GCode in Inkscape, and as GCode is pretty much THE standard for opensource CNC it seems like the logical thing to use!

As before, this is a project for myself so im CERTAIN i havent gone about this the most effecient way (using a pre existing sketch would be the easiest option!) but its a learning process!

Made In Nepal Expo 2014 : A Glimpse

Hey there guys!

Whenver there's a relatively huge event in Nepal, the organizers resort to "Bhrikuti Mandap" as the venue. So was the case this time. The Made in Nepal Expo 2014 was held from 14th - 17th Feb 2014, at Bhrikuti Mandap. 

As the event name suggested, the event hosted hundreds of stalls that ranged from furniture to clothing and from pottery to 21st century art-work, in short, everything that's made in Nepal. Of course, why would I post this if there weren't some robots on display?

Pictures! Your Up Next!

 

 

Pet (work in progress)

I have not built my first robot yet - waiting for the parts. But I have the plans for my second robot ready. He, just a little ambition :D.  My second project will be a prototype for a robot that can be sold as a consumer robot. I will call it Pet - working title.

This is how I imagine it. When you order Pet, it will come in a nicely designed box. In that box you will find a shiny sphere, a little smaller than a soccer ball. One size of the ball will be flat. You will also find a smaller box that contains a base plate with an electrical cable. No on/off switch. No manual.

Heated Bed Warning Light

Hello everyone, I thought I'd share a circuit I am using on a little 3D printer upgrade project.

I have a heated bed PCB for my Printrbot that I am currently adding to the underside my aluminum bed. I needed clips to hold the pcb in place and provide a housing for wire strain relief. I designed some and printed them out. I wanted to add LED warning lights to the clips so they would glow when the bed was hot. I really wanted the lights to stay lit after the bed was off and slowly dim to nothing over about an hours time like the warning light on my stove does.