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 May we always remember those who have shaped our lives for through us they shape those around us. - mechanicalbrain [more] |
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This is the midway point for a lego machine I am building. It is being built to play a Game for Science Olympiad which is run through Gifted programs throughout the country as far as I know. I don't have the exact specs on the game but chances are that the robot will have to fit in a 30 cm cube and score objects such as ping-pong balls and film canisters into a 30 cm cube. As seen it has 6 motors. 2 for drive 2 for the shoulder joint and 2 for the chain driven elbow. I plan to have at least one more motor for the sweeper brush to push the game objects into the hopper that will be mounted to the arm off of the elbow joint. I am not sure how many RCX's I plan to use for this. I have yet to look up the maximum current output on one motor output. I will probably end up using more than one RCX just to get the added life, and oomph from the doubled battery capacity. I will post a picture of the finished product once I finish it. That shouldn't be longer than a week.
Discussion
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01-11-2005 21:56
greencactus3
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
i highly reccomend shortening your wheelbase or widening the track or using less grippy tires. you would have trouble turning iwth that setup. and i highly reccomend you learning how to use "Reinforcements" to make a stronger. more reliable robot with less weight. beam on beam on plate only works for so long.
and as for max amps from a rcx, do keep in mind its possible to use battery boxes and use an rcx to change the switches. doesnt drain the rcx batteries as fast either. have fun!
01-11-2005 22:15
henryBsick
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
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Originally Posted by greencactus3
i highly reccomend shortening your wheelbase or widening the track or using less grippy tires. you would have trouble turning iwth that setup. and i highly reccomend you learning how to use "Reinforcements" to make a stronger. more reliable robot with less weight. beam on beam on plate only works for so long.
and as for max amps from a rcx, do keep in mind its possible to use battery boxes and use an rcx to change the switches. doesnt drain the rcx batteries as fast either. have fun! |
. The weight is no issue. Right now I am actually planning to add weight blocks for a counter balance, but this is one of those test it when it is done things.
01-11-2005 23:48
Scott team 48
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
Also something you want to consider is if you want to run all of the motors independantly is that each rcx has 4 outputs, my idea of how ur planning on doing it would either require that second rcx, or run your brush off one of your other motor outputs, but that limits it a little bit, you probably knew all of this tho, just thought I'd make sure you did.
02-11-2005 16:54
henryBsick
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
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Originally Posted by Scott team 48
Also something you want to consider is if you want to run all of the motors independantly is that each rcx has 4 outputs, my idea of how ur planning on doing it would either require that second rcx, or run your brush off one of your other motor outputs, but that limits it a little bit, you probably knew all of this tho, just thought I'd make sure you did.
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02-11-2005 17:04
EricH
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
If you want two motors to run at the same time all the time, try putting them both on the same output port. If that doesn't work, then link two RCX units somehow.
02-11-2005 17:13
henryBsick
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
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Originally Posted by EricH
If you want two motors to run at the same time all the time, try putting them both on the same output port. If that doesn't work, then link two RCX units somehow.
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02-11-2005 19:34
Kyle Love
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
Thats amazing. My team is really behind right now. But, they have a GREAT mentor (Mat Temme) and I believe they can get it done in time. (I can't help with programming, I help make the mechanical parts) Will this bot be at a FLL comp?
02-11-2005 21:31
henryBsick
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
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Originally Posted by Kyle45
Thats amazing. My team is really behind right now. But, they have a GREAT mentor (Mat Temme) and I believe they can get it done in time. (I can't help with programming, I help make the mechanical parts) Will this bot be at a FLL comp?
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02-11-2005 23:16
Barry Bonzack
Re: pic: Lego Robot for a F.I.R.S.T.-ish Game
[off topic] You own the game pit! that is awesome! [/off topic]
Looks cool man, good luck in competition.
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