Let's Make Robots!
Provide precision speed control of motors
This tutorial shows how to connect 2 DC motors with simple encoders to an Arduino for precise speed control and distance measuring. The sample code is written for a … Read more
Play a traditional Chinese musical instrument.
Using a
Recently my son showed an interest in learning music so my wife bought a Guzheng. I decided to try and build a robot that can play it using just LOZ blocks and a … Read more

Still looking for ideas for an environmentally friendly robot

This is an old post, ignore the request for ideas. I just added videos for any who were curious to see it in action.


I have been asked to build a robot for display that fits the theme "Save the environment". Basically the robot must perform a function that helps the environment. This robot must be something I can build in a few weeks from available (DAGU) parts although I can order some parts like sensors that DAGU don't make.

I have a few ideas but I would like to know, what sort of job do you think a robot can do to help improve the environment?

Selling wall charts to raise money for LMR.

Please post a photo of your workspace with the wall chart so everyone can see how great it looks!

America:

Rocket Brand Studios

Citizen Scientific Workshop

Reuseum

 

Australia:

Chickenparmi

 

China / Germany:

Shipping LMR posters cost more than I thought. Please help.

Update: 301th July, 2013

Thanks to a few generous members of LMR half of the bill has been paid. I still have to pay a weeks pay but that is much better than 2. I still have another 350 posters that have not been shipped yet so I might have to find a cheaper shipping service and hope they do not get damaged in transit.

If you want to help LMR then please buy a poster or continue to donate money. Right now, all donated money will go towards paying for shipping cost.

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.

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:

A hexapod for my son to ride on - a big experiment

After seeing the weblink by bdk6 "inspiration for Hexapod builders" I was inspired. The video is of the "Mantis" turbo diesel all terrain hexapod.

Ok, I cannot afford to build a 2 tonne turbo diesel hexapod but I can build one big enough for my 8 year old son Shi Sen to ride on. My plan is to have almost the entire robot laser cut from 6mm plywood.

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!