Is it impotant for a robot to be able to drive/ selfright if flipped?
Yes
87%
[ 14 ]
No
12%
[ 2 ]
Total Votes : 16
Author
Thread
Shaunington III
Joined: 18 Jan 2006
Posts: 96
Ive been thinking about just making a flipper bot, it would only cost an extra $50 and I could use an old car actuator as a weapon, does this sound efficient?
_________________ There are 2 thing's that have alway's bothered me:
1. If leprachaun's are lucky then why are they short?
2. It's unfair that if your parent's don't have kid's then chance's are you dont either.
_________________ There are 2 thing's that have alway's bothered me:
1. If leprachaun's are lucky then why are they short?
2. It's unfair that if your parent's don't have kid's then chance's are you dont either.
Sat Mar 18, 2006 11:25 am
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
ok let me try that again
wtf is a "car actuator" _________________ Mechanical engineers build weapons, civil engineers build targets
Sat Mar 18, 2006 11:30 am
Shaunington III
Joined: 18 Jan 2006
Posts: 96
I don't kbow what wtf mean's, but if it is: What is a car actuator, it's the thing that open's a car door when you press a small remote control.
_________________ There are 2 thing's that have alway's bothered me:
1. If leprachaun's are lucky then why are they short?
2. It's unfair that if your parent's don't have kid's then chance's are you dont either.
Sat Mar 18, 2006 11:42 am
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
A car door actuator isn't strong enough to lift a featherweight. Your better off at looking at a Car Seat Actuator.... _________________ https://www.halfdonethings.com/
Sat Mar 18, 2006 11:49 am
Waddy the phoenix
Joined: 16 Jun 2004
Posts: 971
Location: sydney
or for best results a bus seat actuator (have you seen the size of most bus drivers no disrespect to em but DAMN those actuators would have to be rated for 400kg or something) _________________ as a shadow is seen and not heard i am here
-Waddy the phoenix
Sat Mar 18, 2006 6:37 pm
T Bag
Joined: 26 Feb 2006
Posts: 93
Location: Melbourne suburbs
Sounds good Shaunington but yeah looks like you will need that bus seat actuator becauseu will need quite a lot of power to lift another featherweight like TDT said. What about those automatic door motors? The one's that open and close those door in shopping centres and other places like that? would they be useful? _________________ Bots don't like sand. It's so...Sandy
Mon Mar 20, 2006 8:26 am
NMO Experienced Roboteer
Joined: 16 Jun 2004
Posts: 486
Location: Melbourne
shopping centre glass sliding door motors are most likely AC high voltage motors and also probably very large and heavy for their output power.
These motors will most likely need 240Volts and since we have 48volt limit under the rules there out.
Mon Mar 20, 2006 8:37 am
T Bag
Joined: 26 Feb 2006
Posts: 93
Location: Melbourne suburbs
mmm ok well looks like the bus seat actuator is in then. How do they work? _________________ Bots don't like sand. It's so...Sandy
Mon Mar 20, 2006 8:40 am
Waddy the phoenix
Joined: 16 Jun 2004
Posts: 971
Location: sydney
test frame= GREAT idea
what you might wanna try instead of a bus seat actuator (you would have to find a wrecked bus that is prity darn new wich is gonna be hard) ou could try making something up using a drill motor a nut and some threaded rod (see pinsher or maby woodzilla's build thread or ask glen or george for help on em)
it would be easier to get the parts for em
(did i ever mention i hate typeing on my boss' laptop the keys suck ass _________________ as a shadow is seen and not heard i am here
-Waddy the phoenix
Mon Mar 20, 2006 9:40 am
T Bag
Joined: 26 Feb 2006
Posts: 93
Location: Melbourne suburbs
mmmm ok I still woulod like to know how the bus/car seat actuators work though and what you would need them in a car for. Are they the things that move your seeat around in the newer models of car? _________________ Bots don't like sand. It's so...Sandy
Mon Mar 20, 2006 1:58 pm
Spockie-Tech Site Admin
Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
Yes, Scoopy Doo uses a car-seat actuator to move the Saw-arm.
They work on the same principle as a bolt with a nut on it. The motor rotates the bolt clockwise or anticlockwise, and the nut slides back and forth along the bolts thread. The nut then has an arm or sleeve attached to it that moves with the nut.
The ideas is, they change rotational (round and round) movement from a motor into linear (back and forwards) straight line movement.
They are quite powerful (torque) for the relatively low amount of battery power they use, but typically very slow with not much movement, so you need to use use linkages and levers to "gear them up" and make them move faster and further, but with less force. _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
Mon Mar 20, 2006 2:07 pm
T Bag
Joined: 26 Feb 2006
Posts: 93
Location: Melbourne suburbs
oh thankyou. That knowledge may be useful sometime in the near future. _________________ Bots don't like sand. It's so...Sandy
Mon Mar 20, 2006 2:14 pm
Shaunington III
Joined: 18 Jan 2006
Posts: 96
Sorry I haven's been on in a while. The actuator using the drill sound's good.
So:
1.) would that move fast enough to be classified a a flipper, if~
2.)
quote:
you need to use use linkages and levers to "gear them up" and make them move faster and further, but with less force.
So could I use a small hydrolic system attatched to this to double it's force?
I could use a peice of tubing to link the two bulkhead's of the hydrolic's, the smaller one on the actuator mechanism and the larger one on the flipper.
Also, I've got my drill motor's mounted on my test-bot and batteries are put down using 4 bracket's that fit onto the drill motor and some alluminium plate thet goes over them, bust still leaving open the - and + battery end's, would this idea work on my proper robot or would the bottom eventually shake loose?
Thank's all.
_________________ There are 2 thing's that have alway's bothered me:
1. If leprachaun's are lucky then why are they short?
2. It's unfair that if your parent's don't have kid's then chance's are you dont either.
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