Does anyone know where I could buy these lego parts in Ireland or the UK

lego

I already tried emailing active-robots.com and as far as I can see, the lights are on but nobodys home.

The parts I'm looking for:

1X
Gear block:
http://www.legoeducation.com/store/detail.aspx?ID=844

6X
Angle Sensor:
http://www.legoeducation.com/store/detail.aspx?ID=323

(the company linked to above does not ship outside america)

I'm living in Dublin, so if anyone has these parts and is interested in selling them, contact me.

g5hn710m4xpdwy

if you know anyone or have rekations in america can yo get it shipped to there house then they post it to you? just a thought

coolwings

I think you might be successful if you try HERE

syl77

Can you believe we were given a lego robotics project for a final year project in A.I in College. You had to build and robot that could learn (programmed with NQC), was pretty good fun seeing the different results

no leaf clover

hey lego, what you building?

lego

I can't find either of the parts I require on the main legoshop website:

http://shop.lego.com/default.asp

thanks anyway coolwings.

I'm building a robotic arm that incorporates a vision system using LeJOS (A small virtual machine on the RCX that can be interacted with using Java code).

I need the Rotation(Angle) sensors for position accuracy, timers wont work as it gets slower when the batteries run low. Its speed also depends on the type of movement (It takes more than twice the amount of time to move the arm into an upright position than it takes for it to go down).

coolwings

lego wrote:

I can't find either of the parts I require on the main legoshop website

Try sending them an email ... ask if they have a specialist dealer they can recommend who keeps the odd little bits in stock.

lego wrote:

I'm building a robotic arm that incorporates a vision system using LeJOS (A small virtual machine on the RCX that can be interacted with using Java code).

Sounds like a fun project. Lots of constraints imposed by the lego parts to overcome

lego wrote:

I need the Rotation(Angle) sensors for position accuracy, timers wont work as it gets slower when the batteries run low. Its speed also depends on the type of movement (It takes more than twice the amount of time to move the arm into an upright position than it takes for it to go down).

Would it be possible to use relays that operate when a motor stalls ?At end of travel, the motor stalls, and amps go up, and this triggers the relay.
Similar to the circuit that stops a car window motor when the window reaches end of travel.

lego

It's a robot arm, I'm not looking for an end of travel point. The arm has a camera mounted on it and simply reacts to its surroundings by moving towards or away from an object it sees. It will move towards an object it "wants" like a red ball for example, it will not need to extend itself fully most of the time and will not reach extremes of motion most of the time. I'm just looking for accuracy.

no leaf clover

was in dundrum sc yesterday and noticed an art and hobby shop with alot of technics stuff, might want to give them a ring, just check before you go in, but they seemed to havea alot

lego

Does anyone have a lego mindstorms Robotics Invention System set that they are willing to sell (for a reasonable price)