Let's Make Robots!

Five free Insect Bot Mini kits

This is a free (well, it does not cost money) giveaway of 5 Insect Bot Mini kits.

 

All 5 kits are gone now, please do not request anymore but you still can comment :-)

 

USB Microscope

I got myself an Andonstar USB microscope of eBay and must admit that I’m pretty impressed with the resolution and magnification.
It is a great tool for inspecting SMD soldering joints and the kids had great fun with it this exploring small insects and flora this summer.

So if you’re wondering what to get yourself this Christmas, this might be it.

Some pictures from the microscope

One Egg Grip Closer

Taking shape..... somewhat eggshaped

Here is a manual test for piece of mind .... still have to design last part for my linear servo mod.

Please note :- Picture is side ways...and yes it does grip the weight of an egg without slippage.

Second iteration of 08Lunchbox project board

Few days ago I recieved a package from Fritzing Fab with 10 PCBs of the second iteration of my 08lunchbox project board.

It is now smaller: 50x50mm and interfacing pads are completely redesigned to allow more versatility and eliminate jumper wires for some components. Here is visual comparison:

V0.5 on the left VS V0.9 on the right.

ProtoPrusa Printing

ProtoPrusa PrinterFirst off - Tips from a Noob

Interactive Stochastic Learning Automaton - cleaned up code

I have cleaned up the interactive Stochastic Learning Automaton code I once wrote and attached it in this short blog. Just send '0' or '1' via serial monitor, if a chosen action was favorable or unfavorable and see how the automaton learns to chose the right action over time.

KellerRobotics and its progress

Well I've been working http://kellerrobotics.com, the website for my business KellerRobotics since August or so, and I finally have the first printer of the fleat of printers which is a RepRap Prusa Mendel i2. I ordered a new hot end and it should be here early next month. I was a little bored tonight so I downloaded Blender since its one of the few full-feature and free 3d modeling programs available and its not that bad of a learning curve, Had a pretty decent wolf head made within a half hour of downloading the program.

Speech Recognition - Robot Thinking and Understanding

Programming a robot to do a single specific task such as following a line is hard enough for most people. So how do we program a robot so it can perform many different task? How do we command / control it?

Recently I have been wanting to use the speech and voice recognition of an Android mobile phone. My friend Bing wrote a simple app for me that allows my controller to connect to an Android phone via Bluetooth and then send the phone a list of words that I want the robot to recognize. For example: "OddJob,go,forward,backward,turn,stop"

Delta Printer WIP

Hi,

Been on this for a while now, thanks to Ossipee and Hoff  and Mogul :/ 

They kept pushing me to build a delta so here is my WIP on it:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Idiot and his Form-1

A short blog to provide an update.

Those who were in the ShoutBox a few hour ago, would have seen how I was excited to finally receive and setup my Form-1... Shortly followed by the cries of a broken man who could not stop kicking himself for stupidly overfilling the resin tray... and then had overflowing resin all over the insides of the printer...

I have been busy cleaning and think I got most of it. I also spoke with Jory from Formlabs who gave me some advice on cleaning (and sent me some extra instructions as well). They were great.

Servo Power Gearboxes - revamped


We have recently revamped our line of Servo Power Gearboxes! Our gearboxes have always been top-of-the-line and super powerful (up to 3,402 oz-in of torque!) but now offer upgraded features and a more durable construction.

Rostock

I thought I would start keeping a log of my Rostock build.

 

Actual Purchases:

Proposed BOM and Vendors:

T-800 reloaded

A funny afternoon in the office, some robot talk, and one of my Chinese artwork girls with some photoshop fu came up with this (it's me!)

That said, I really want to build a life-sized humanoid robot...And it will kill us all!

No comment

Getting ready for the service droid :)

So I've ordered the Dagu service droid :) http://letsmakerobots.com/node/38776

I'm getting the service droid with a Rover 5 (4 motors/encoders), 4 channel motor controller and Dagu Red Back Spider.

I already have a Rover 5 with 4 motors on which I use the 4 channel motor controller and Red Back Spider. I'm powering everything from a 2S Lipo (3000mAh). You can see it here: http://letsmakerobots.com/node/31410 or on my blog: http://www.bajdi.com/category/rover-5/

On my current Rover 5 the 2S Lipo feeds 3 devices:

Stupid robot trick I've never seen...

We recently had a spate of doodle bots entered as projects for various reasons, and we never have a shortage of line followers in the queue. I have never seen anyone attempt to make one follow the other. It would be amusing to me for about 39 seconds I think. Especially if the doodle to were programmed to draw its line in a random way and if there were multiple line followers-kind of like a row of ducklings. Video would be great with an electronica version of the "Bridge Over the River Kwai" march.

(This is a 2 am post. I bet I regret it when I wake up tomorrow.)

Troubleshooting 3-d Printer

This blog is a place to collect notes to be worked up into a Tips post for trubleshooting 3-d Printer problyms.

The idea is to list a symptom with a photograph and list sucsful fix actions to try.

 


 

For Example:

Printer: Printerbot LC

Material: ABS

Notes: Extruder temp 230C, Bed temp 110C, Fan on 100%,Polymide (Kapton) on a glass bed 

Problym: Poorly formed vertical edges, Keystoning (wider at the top then the bottom)

Insect Bot Mini Workshop

Last Saturday I held a workshop in Xinchejian, our Hackerspace in Shanghai. The workshop was about to build an Insect bot mini.

PlayStation 2 Touchscreen Robot Remote

This is a project I've been working on for a while.

It's supposed to be a robot remote control. I have had it working as a remote but currently it's in the middle of an upgrade so it doesn't really control anything yet.

As you can see it uses a PlayStation 2 controller as one of the input devices. There's an enclosure strapped to the front of the controller.

Here's a side view to give you an idea of how the two main parts join together.