Thanks for your kind comments. We noted that changing the gears the way you suggest will make the robot go faster, but with much less force. You are right... those batteries run pretty hard though!
What's with the rear wheel? Shouldn't you add shock absorbers or something, Everytime the rear wheel goes down the whole thing jolts. Don't get me wrong it's an awesome design, beyond what I'm capable of.
This is based heavily on the design of Brian Bagnall in his book Maximum LEGO NXT. There are issues with the rear wheels. My modifications focused on the front drive. But we are currently building a LEGO rover that is about 2 feet long. We will hopefully fix the issue you describe as well as many others.
It wouldn't add much. The Rocker-Bogie suspension is designed to enable each of the six wheels to be at different heights enabling the robot to traverse extremely rough terrain while keeping the body relatively level. Treads would only constrain the wheels and interfere with the independent motion.
I do not have the LegoDraw CAD instructions. It is basically the design of Brian Bagnall in his book Maximum LEGO NXT with the axles replaced by gears (since the axles stored up too much energy in torsion and oscillated).
A real great job! It looks like it has traction all the way. Up next a set of wheels via a drivetrain of rods (dont know how to call it in engelish, think of a differential sort of links and make each side a wheel with (ball joints) couplings?) to make each wheel moving indipentant? And next step stearing? Know it's a lot to ask, but would love to see more! You do a very good job! Greetings from Holland!
Thanks for your kind comments. We noted that changing the gears the way you suggest will make the robot go faster, but with much less force. You are right... those batteries run pretty hard though!
drknuth 3 years ago
thats pretty cool!
180sk8180 3 years ago
5* awesome
legoprinter2000 3 years ago
geweldig ik gan terug mijn oude lego uit de doos halen en er wat moderne snufjes bijkopen denk ik.
verrybrainie 3 years ago
awesome job 5 *s!
14080yo 3 years ago
This is great! Just need that independant suspension and your good to go lol.
serge933 3 years ago
What's with the rear wheel? Shouldn't you add shock absorbers or something, Everytime the rear wheel goes down the whole thing jolts. Don't get me wrong it's an awesome design, beyond what I'm capable of.
Chao5bringer 3 years ago
This is based heavily on the design of Brian Bagnall in his book Maximum LEGO NXT. There are issues with the rear wheels. My modifications focused on the front drive. But we are currently building a LEGO rover that is about 2 feet long. We will hopefully fix the issue you describe as well as many others.
drknuth 3 years ago
nice job, anyone with an NXT knows how hard it is to create a robot like this
minirobotics 3 years ago
Could you try adding treads/tracks in place of the wheels?
evilmunchkin366731 3 years ago
It wouldn't add much. The Rocker-Bogie suspension is designed to enable each of the six wheels to be at different heights enabling the robot to traverse extremely rough terrain while keeping the body relatively level. Treads would only constrain the wheels and interfere with the independent motion.
drknuth 3 years ago
I do not have the LegoDraw CAD instructions. It is basically the design of Brian Bagnall in his book Maximum LEGO NXT with the axles replaced by gears (since the axles stored up too much energy in torsion and oscillated).
drknuth 4 years ago
wow, awesome!!! do you have the LDD?
canie01 4 years ago
A real great job! It looks like it has traction all the way. Up next a set of wheels via a drivetrain of rods (dont know how to call it in engelish, think of a differential sort of links and make each side a wheel with (ball joints) couplings?) to make each wheel moving indipentant? And next step stearing? Know it's a lot to ask, but would love to see more! You do a very good job! Greetings from Holland!
HenXje 4 years ago
cool
sljee 4 years ago