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alasdair
Posts: 563 Joined: Sat Jan 03, 2009 3:52 pm
Location: Marlow, Bucks
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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
Posts: 532 Joined: Mon Aug 30, 2010 8:18 pm
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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
Posts: 563 Joined: Sat Jan 03, 2009 3:52 pm
Location: Marlow, Bucks
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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
Posts: 1855 Joined: Thu Apr 15, 2010 11:20 am
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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
Posts: 1565 Joined: Mon Jan 02, 2006 9:40 pm
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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
Posts: 563 Joined: Sat Jan 03, 2009 3:52 pm
Location: Marlow, Bucks
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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
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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
Posts: 563 Joined: Sat Jan 03, 2009 3:52 pm
Location: Marlow, Bucks
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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
Posts: 1855 Joined: Thu Apr 15, 2010 11:20 am
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by haz » Sun Sep 12, 2010 7:51 pm
umm you can just plug the servos in diferent channels
alasdair
Posts: 563 Joined: Sat Jan 03, 2009 3:52 pm
Location: Marlow, Bucks
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by alasdair » Sun Sep 12, 2010 8:08 pm
Oh well, i need variable speed anyway...