Let's Make Robots!

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WhiteBOB - preview

This is WhiteBOB, my member of the BOB family. Because I have no access to a 3D-printer this robot is build from polystyrene sheets (3 and 1mm) and a piece of PVC corner strip.

BoB the Biped and me with v0.91 board design

I got my pile of BoB parts from isotope yesterday and I was stoked to say the least. He even printed out a JAX name badge for me \o/ Thanks man! My BoB is glow-in-the-dark blue ABS and it luminesces as advertised. Blue Glowy BoB... mmm.

Initial test fits showed that there was going to be some grinding work in my future to make things work. One change I made to the original build list was using an HC-SR04 for the sensor. The sensor holes in the head were too close together so I removed some material on the outer edges to make it fit. It's real nice now.

Maxhirez' PICAXE board



A week or so ago Max was trying to find a layout for a PICAXE 18 or 20 board with an L293/754410 motor driver. He was hoping for something similar to what sanc04 assembled.

My daughter

My daughter Mia is 2 years old. Every evening she is sitting next to me and helping me building a robot.

COSMA - Update 1

In the meantime I named the robot astronaut Cosma, a maiden name, ancient Greek for Cosmos. Below you'll find a more specific design study. I think I will 3-D print the main body and the head. I've furthermore tested a FSR (force sensing resistor) as a kind of pain receptor and the ArduEye.

Mind the Raspberry Pi power usage

The RaspberryPi is a powerfull little gadget that can add a lot of good features to your robot. For under $60, including cables, dongle and SD-card, you get a lot of processing power, data storage, wifi and audio. So I ordered a RaspberryPi to be used as the brain for my R2D2 project.

Sneak preview of T'REX robot tank chassis prototype

 

Inspired by the Rip Saw tank, I have designed a new robot chassis called the T'REX tank chassis. I finally received all the parts for the prototype chassis. The entire chassis including gearboxes and tracks are all metal. The tracks have been anodized a gun metal grey colour.

Arduino Robot Review

Here at Banana Robotics, we're very lucky to have a sneak peak at the Arduino Robot. It's about 7 inches in diameter and features two separate Arduino microcontroller boards. The upper deck is the Control Board and the lower deck is the Motor Board. Each board has TinkerKit type connectors for expansion. The two boards talk to each other via a serial port.

Pig 'rastlin (Or, How to be annoyed...)

They have a saying in southern Iowa:

"Never wrestle(usually they pronounce it "rass-ul")with a pig-you get dirty and the pig likes it."

On the other side of that, John Cleese and Michael Palin of Monty Python had a show before the Flying Circus days called "How to Irritate People."  The secret, it turns out, is to be (or act) completely oblivious to the fact that you are being irritating.

So here's what that has to do with LMR.

We could be the third sending a humanoid robot to Space

After Robonaut 2 and the ongoing KIBO project, we could be the third to send a humanoid robot to Space. See my attached AT-A-GLANCE project description.

 

Club Jameco Entry

Well I submitted an idea for club jameco.

It's a kit which you solder and connect sensor wires and servos

the sensors are attached to a glove and are connected to the soldered board, and the servos make up the robotic hand, I designed the PCB.

The only thing I don't understand is should I include the glove and the robotic hand with the kit or should I let the person use their own glove and make their own robotic hand.

Win a Cheapduino Set

Sorry for posting that so late but there are still two days to go.

Win a Cheapduino Set by submitting your project idea to the DFRobot contact address. See details here: 

http://www.dfrobot.com/community/monthly-gear-giveaway.html

This submission will end by June 19th, so you still have two days time to get a project idea and submit it.

Please read the rules in the provided link to qualify for DFRobot's "Monthly Gear Giveaway"

Guangzhou Science Center robot competition

As an advisor to the Guangzhou Science Center I occasionally have to go there and do some work. This time I was one of their judges for a local robot competition. There were 2 categories, non-programmable robots for younger students and programmable robots for older students. All teams received a sheet of 2mm thick heavy duty cardboard for their chassis and a kit from DAGU that included:

Weekend Project: Either Create a 3-Axis Printer or Finish My Delta Robot

Hey Everyone,

I'm making an effort to create either a very small 3-Axis Printer/Router or finish the Delta Robot this weekend

I have other things on my list of "must do" but I'm going to make an effort to get one of these projects done

If I build the Printer/Router, I realize there are a zillion examples already out there but I want mine to involve a different design (not that I expect mine to be better than anyone else's)

That's all for now - photos & build log updated soon

 

Drive Stepper (4th axis) off of PWM Spindle Control Ouput

Sorry 'bout this one, I am just sorta "thinking aloud" here, feel free to brainstorm with me, there is no real specific question here.

I want to use the 4th axis (horizontal rotary axis) as a lathe on my CNC. The X,Y,Z would operate normally, the only difference would be that they would be grinding away at a chunk of something spinning, as aposed to sheet-goods clamped down to the table.

Stepping up/Moving Forward...

First, via adafruit (who has apparently bought an Italian URL so that they can shrink urls using "adafru.it") I read a great think piece today by Leila Takayama at MIT Technology Review about what it means for a robot to be human friendly.  A few quotes:

theory vs. soldering

Well...my robot is far from being able to be presented.

In fact I try to build/solder some parts on my own, which seems to be more challenging than expected. Actually I´m soldering a h bridge with its controller based on oddbots h bridge - without the current sensing part - and I just hat to face, that it doesnt work. I guess its not due to oddbots design, but to my soldering skills and or adapting to a simple board design, since I solder though-hole.

I hope I can figure out the problem soon...

Antique desk, marvel of engineering

http://www.youtube.com/embed/MKikHxKeodA?rel=0

I can't even imagine the time it took to design & build something like this. All done with no electricity, motors, or micros.

MURCS - Sneak Preview

Hi,

this is MURCS - Multi Use Robot Construction System. My first self design chassis using laser cutted parts. Today the parts arrived and I have quickly assembled them for a foto shooting. 

The neon green chassis looks great. 

 

The design was made with SketchUp, my favorite tool for 3D design. This is a early design using a second platform.

ABM - A Better Mousetrap

Several months ago, I posted about what the Standard Template Library had done for development when it came out in the mid 1990s.  I remembered how it was this incredible leap forward in software.  It enabled a developer to do things in minutes that were hours, days maybe weeks before and was a huge leap forward in productivity and software quality.  It took standard algorithms and made them out of the box sorts of things that were easy to use and implement.

http://letsmakerobots.com/node/36671

Friend E

 

This is my entry for the Office Gadget Challenge. I based my design on Burn-E from the movie Wall-E.

First design stages of the robot i would like to make.

The base of the robot is a metal project box, in the box there is going to be :

Updated preview of new re-configurable, all metal tank chassis

Update: Just did a motor test using a fully charged 3S LiPo. These motor / gearbox combos are very powerful and will need a Wild Thumper controller to handle the peak current.

No load current: 0.6A
Nominal load current: 3A
Stall current: 11A+ 

This is definitely going to be the tank version of Wild Thumper!

Advanced Robot Arm Project

This is a long term project to develop a robotic arm that is more advanced that traditional hobbyist arms using RC servos without being so expensive that only well funded universities can afford it. 

The first prototype gripper used standard RC servos while we experimented with the configuration as shown in the first video. Once I had a good gripper configuration I built a prototype arm for it as shown in the second video. This arm used a differential drive system with the goal being to keep the weight of the motors as close to the shoulder as possible.

Maker Faire - Editors Choice - Cheapduino

Maker Faire in San Franzisco. I could not be there but still got something on my desk this morning. 

Yeah, that's the Maker Faire Editor's Choice banner, given for the DFRobot's Cheapduino and signed by Andrew

On-line store up and running!

I just published my first website: www.salvage-1.com and it should be live any minute now.

I will be adding items on a daily basis as I have over 2000 part numbers currently in stock as well as all types of unique and interesting items.

There will be certain core items, (like the soldering stations), that I will always sell but other items, (due to the nature of the surplus business), will be limited quanity. What that means is, when they're gone, they may be gone for good. I buy at auction every other Saturday so there will be new and different items added continously.

Update on my status with BeagleBone Black delivery

Well, almost a month ago, Mukund showed me the BeagleBone Black over on facebook. Then, I was considering buying a Raspberry Pi and a Freeduino Uno, and since the company was located just 30kms from my home and had next day shipping facility, I was pretty happy with it. But Black had an appeal to me. It was both a Raspberry Pi and an Arduino Uno and better at it than the combination of both. All this and the fact that it was cheaper at that time, I persuaded both myself and my parents to buy it. Then started the problems

Sad story about Chopstick Junior and Campus Party Berlin 2012

Well, let me begin with an introduction of the robot and the event but you need to promise me to read it to the end...or just the end if you don't have time.

Beginnings

 

May 19, 2013

I am building a robot controller board using a Zilog Z-80 processor.  For those who don't know, the Z-80 was one of two major CPU chips in the late 70s and early 80s, before the IBM PC ruined ruled the world. The other was the 6502.  I hope you will follow along as the project progresses.  It will be fun.  Why on earth would I want to do such a thing?  Glad you asked.