Let's Make Robots!

Blogs

BoB the Biped and Me: BoB finally gets his lights.

Finally got viable PCBs for the LED array. Even still I burned up two out of three of the boards and several microcontrollers with various mistakes but the last one was a winner.

Front and back:

 

Introduction to GR Sakura - Development board

Sakura? What's that ?

A royal sake brand ?Premium car Polish?(Sorry Oddbot ...had to put that in...)

A cherry blossom tree?(Well it means that literally!)

Simply put I guess you've never heard of it.But now you Are reading about it and if you're reading ..You'll soon Know about it.(Well that's rather my intention anyways).So here goes... the first introduction to GR Sakura Development Board here on LMR.

First lets start with a nerdy introduction...

Campus Party London 2013 - Aftermath

This is the place where you will find the detailed report, pictures, videos of the Campus Party event 2013 in London with the view of our Letsmakerobots guys (well, and the guys from Roboternetz with whom we shared the table).

If you have been there then please let me know if you want to show or write something, so we can show it here in one big blog post.

Campus Party in London was held in the O2 Arena, one huge dome with a cinema, lots of restaurants and the big event area.

Morgan 3D printer adventure!

Thanks to Ossipee and his jedi mind tricks I have started working on another RepRap. My first RepRap was a Rostock which was on the cutting edge at the time and now I'm building another rather immature model. I have Ossipee to thank for the ongoing Rostock adventure as well!

Since the Morgan is so new, documentation is still in a state of flux with quite a few people documenting various virtual and real-world builds. While this is good it also has a way of muddying the already murky RepRap waters...

MAKE: Robots Past and Present

Robots have been a big part of Maker Faire from the beginning. Check out Maker Faire robots from 2008 to today. Including a great video of Chris the Carpenter showing off Walter II.See more on MAKE...

Shout Box talking RPi: Trials and tribulations

A nice perk of LMR is the Shout Box, LMR's own little chat room. Many times I've been struck by motivation to solder/etch/hotglue/bodge something just through the good maker-mind energy in the SB but, alas, I would have to hang up the phone, if you will, if I were to head to the workbench. "Gee," I thought, "wouldn't it be awesome to have the Shout Box read to me so I can laugh and cry and work on a project all at once?" Yes, and it is awesome.

MAKE: Bio-inspired Origami Folded Robots

Dash Robotics launches a fundraising campaign at Dragon Innovation for their bio-inspired origami folded robot. See more on MAKE...

BoB the Biped and Me: Asthetics phase complete

When the long awaited Rev. B PCBs arrived it didn't take long to realize I'd mucked things up again. I'd forgotten to connect any of the I2C lines. So now I'm waiting for Rev. C which is back from fab and will soon be sent to me.

So instead of working on that I set out on wrapping up some finishing touches on BoB's outfit. I found a lot of good things to add recently. One thing I found was some Stikfas Cuboyd robot toys:

Within moments of receving them...

First robot idea

I'm new to this website, but have been researching robots for a while, and my ultimate aim is to have a cube shaped robot on 4 wheels which can walk around on its own, and can follow you, with a talking ability if that's possible, any help would be appreciated. Thanks, smiggle

Service Droid

Working for DAGU means I need to try and design products that are not just cool to look at or play with but are also affordable and easy to use for the beginer. Sadly this balance is not easy to acheive. Usually more fun / cool functions means more complexity and cost.

free minecraft accounts!

Sweet! I've just received my free minecraft giftcode!


>> Minecraftcodes.info <<

MAKE: Concerto for Robots

Engineer, Artist and Designer Ricardo Cid's singular vision is brought to life through a kinetic sculpture where geometric robotic forms dance to music with movement choreographed in computer code. Read more at MAKE...

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...

The planning of a tiny autonomous SHR type robot.

I have built a SHR robot using an arduino and a L298N. Everything works fine although the motor driver is junk. However, I want to build another. One that is really small, and cheap to build. I have not bought any parts so everything I am saying is just thoughts in my head right now.

Remember that all these parts were (mentally) chosen due to their small size and cost.

 

Arduino Nano - $8  eBay  (Has PWM pins which would be used for servo, etc.)

BoB the Biped and Me: BoB gets a 'hawk, naturally.

In general news: The Rev. B boards have been taking a tour of San Diego. Looking at the ZIP codes provided by the tracking info says they're getting closer. They might even be here tomorrow, who knows.

So with that nonsense going on I figured I might as well dig into fleshing out ole BoB here. I wanted to add more team spirit and I thought getting hair in a Mohawk style was a no-brainer, right? And in team colors, with the more modern team pallete using darker blue and neon green:

DIY CNC Safety Guide + Emergency Stop Button giveaway

Hi guys, 

Recently I've been worked with RS Components to make a safety guide for the DIY community, mainly focusing on DIY CNC machines. I thought it might interest you because some of you use CNC machines for building your robots. 

Also, get in touch if you feel that some of your machines could use a shiny big red emergency stop button, I might be able to send you one!

The main aim of the project is to raise awarness about safety issues, so feel free to share any of your own experiences and tips!

 

Robot Localization - So a robot really knows where it is

Robot Localization

Making a Robot know where it is


I started looking into localization for use with sandbot but there have been many other things that conspired to prevent me progressing with it. I put it here as a placeholder and will come back to this when I have more time to think about it..

Robot Vision

Good afternoon all,

I was wondering if any of you had seen the following, as I'd be very interested in your thoughts and opinions.

http://www.techhive.com/article/2046836/opensource-project-aims-to-give-vision-to-hobbyists-robots.html

Thankyou,

Paul

A teaching experiment

Today in the robotics class I wanted to try an experiment. We have covered lots of stuff over the past few months, but not so much programming. In these next few weeks we will be concentrating on programming until we get some sweet kits, more news on that later. 

I have been trying to think up cool and interesting ways that the kids can learn programming whilst getting their hands dirty. It's hard to install software on the school computers so we don't have the IDE up and running yet, but I'm working with the IT admin on that. 

BoB the Biped and Me: Tested, approved, and waiting for Rev. B PCBs. First vid with chickenparmi's sweet LMR bumper :D

BoB's edge detectors worked fine at home but in his operating environment at a bar he was failing miserably. There were many false edge detections while walking over safe ground. The high gloss surface of the bar was reflecting light under his feet during even the slightest wobble when he put down his feet (the point where the edge sensors were read). This led to him backing up into hazards I was trying to avoid.

My 8x16 led matrix

UPDATE:  6 Oct, 2013

Ok, I have been too lazy to update this as this was done a month or so ago. I hereby declare this project complete. It is now bigger and better! Below are some photos and a video of the completed matrix and driver board(click any picture for a larger view)-

The Matrix-

The driver board (front) -

Giving away my soldering station

As I have upgraded my soldering station and have no need for my old one, I’m giving it away.

It’s a TIN-U 936 60W (an eBay HAKKO 936 copy) soldering station. It works great and I have had no problems with it.


It is for 220V !


Anyone interested and are willing to pay for the shipment can send me a PM and I will select a winner at random.
The offer will end 1 september 2013


PS. I live in Norway

PICAXE XTREME PROJECT BOARD

hello guys ,this my

custom designed picaxe master project controller board, this has a max ability to control upto 16 servos, 16 general purpose inputs and outputs. the required channel can be switched on using the on board dip switch, this is a extra security feature, as in the picture the board has an led indicator indicating power on and standby condition. this also has an onboard programming port which is a regular picaxe feature.

3D printed LMR Logo Bot

Since I need to test and improve the 3D printer on my desk I wanted to print a LMR logo bot. After a short request in the forum I've got the 3D file from birdmun, who else could answer that qucik and even have the right thing you need. bird, thanks man....you are the true LMneRd ;-) That is the file: https://www.dropbox.com/s/v4vgif5tude0v63/LMRLogobot.stl 

Now the pictures:

Logo Bot 3D model

In preparation for the Campus party I want to print some of the logo bots. Does anybody have the 3D model available? I do not have enough time to create it by myselves. Anybody up to create one which I could use?

 

Maker Faire 2013 in Hannover

Last weekend the first Maker Faire has been landed in Hannover, Germany. It was a great success and a real time experience for me. The only bad things I can tell, it was too short (only one day) and too hot. Approximatly 4500 visitors have visited the exhibition and our booth was surrounded with crowds of people all the time. Too less time for me to walk around to see other makers.