New Featherweights

alasdair · Post by **alasdair** » Sun Sep 12, 2010 4:17 pm

Jonny wrote:you can build your own speed controller for ?15 which will save a considerable amount of money. me and haz might try and start a robot club at our school aswell

How do i do that?
With servo boards?

I might get a sc just to be on the safe side...

Jonny · Post by **Jonny** » Sun Sep 12, 2010 4:30 pm

nah you use two servos that push microswitches. you'll have to talk to haz though because he knows much more than i do

alasdair · Post by **alasdair** » Sun Sep 12, 2010 4:41 pm

Oh Yeah i saw that on a video on haz's utube channel.
A servo, which is connected to the rx, pushed a microswitch connecting to the motor.

I might use that, i dont know whether it would be easier and more reliable to use a sc.

haz · Post by **haz** » Sun Sep 12, 2010 5:03 pm

[quote] might try and start a robot club at our school aswell

when was i asked about this, its a bad idea!

yeah its simpleer but if it breacks down at an event you can se whats wrong with it

razerdave · Post by **razerdave** » Sun Sep 12, 2010 6:33 pm

Its a very cheap way to do motor control, however it is full power one way or the other other or nothing at all, no variable speed at all.

alasdair · Post by **alasdair** » Sun Sep 12, 2010 6:37 pm

Yeah, it is probably better if i have a speedo as my tactic it to ram inot opponents at high speeds and it wont work as well without variable speed.

haz · Post by **haz** » Sun Sep 12, 2010 7:29 pm

probaply best if you have the money, the motors rip my mounts with off or on (reinforced them with 3mm ali)

alasdair · Post by **alasdair** » Sun Sep 12, 2010 7:46 pm

haz wrote:probaply best if you have the money, the motors rip my mounts with off or on (reinforced them with 3mm ali)

Yeah, i have decided to go with a speedo, after watching a vid by martsard on utube. The servo mechanism gives the drive on 2 sticks, and i am used to driving on the left only.

haz · Post by **haz** » Sun Sep 12, 2010 7:51 pm

umm you can just plug the servos in diferent channels

alasdair · Post by **alasdair** » Sun Sep 12, 2010 8:08 pm

Oh well, i need variable speed anyway...