4WD

You asked:

1) Would you reccomend the mtronics eco 27 speed controllers?

No. With a 4 wheel drive machine you would need 4 of them, one per motor, because they can't handle much current. Even with 4 you might well overload them and for the price of 4 you could get more capable speed controllers. Also, they only go up to 12 volts so you can't over volt your motors which is a good way of getting extra speed and power. I used them once on a 2WD 8 kg feather and they worked for a while but were just not up to it.

2) Where can I buy a safety link + LED?

You can get a wide choice of LED's at Maplin. You can buy a link from Technobots or you can make one yourself. For feather links I use a loop of wire terminated in male bullet connectors with female ones inside the robot. Cost is about 10p if you have a pack of each kind on hand and you should because they are very useful for joining up things inside your bot.

Caome to an event and have a look at people's links - there are lots of ways to do it. I've sen one made out of a 13 amp mains plug.

So you'll be at Reading? Will you be there on sunday?

Edit: Thanks John. That question was aimed at Jack.

unfortunetly not, however, my friend dave weston will show you his robots and im sure other people will show you theirs if you ask nicey :D

yeh the spektrum can be used with many different things including drill motors

http://robotbirds.com/catalog/product_i ... ts_id=1540

thats a dx6 with 6 channels i have 2 they are great and have decreased in price, trust me you will be glad of more channels you can also charge this one with the a wall charger and it has a good build qulaity feel

hope this helps
alex

true for above but also try and get a BR6000 Receiver: not an AR6000 Receiver:

i did see a post about the 2.4 gig system for £30 (but has very limited bits no mixing etc but £30 ) :)

hi
actualy i will be at reading on the sunday now :P so yeah il see you there

Hello again. Thanks everybody for the responses.
I have three questions.
1) Can anybody reccomend a specific speedo for 4wd's?
2) Can anybody explain about the saftey links in more detail?

I am happy to wait until Reading for those to be answered.

Also, a more general thing,
3) If I was to go and only do a 2WD robot, would I need to fit an axel at the front or just mount the wheels on?

Hi,

Try and find me at reading and I'll show you the insides of Whirlpool (our 4WD pusher).

We will be there as well, so get Will to bring you over and have a gander inside Stagefright, to see how not to do it. :rofl:

hey guess what?
im gonna be there both days now :P so come take a look at any of my robots whenever, just ask me and il talk anyone through it, oh and that goes to everyone not just Helloher