Mindboards

This looks very cool and may well be the "one of the best Technic" kits ever? Maybe. I passed on the mobil track hoe and its a great model(still may get if they dont run out to soon, but that is 200$ and i have the parts to build it i think at least i know i have more then enough treads an...

Just in case you are not a follower of this blog http://technicbricks.blogspot.com you may have not seen the new : LEGO 8110 Unimog U400 This versatile Mercedes-Benz Unimog U400 you are up for any challenge! He is not only the largest Technic model - but also the first that combines pneumatic power ...

Wait this must be true I just bought shares in the new IPO for what is "gogo" on the DOW. Price is up 50% today from opening.

300$ will not even be close to what that set would cost. LOTS more. why? Look at the newest sets coming out soon like this summer (I am waiting on the UNImog <this will be the flagship set this year. It will be I hear 250$? thats 50 more than last years trackhoe the flagship of last year). I would l...

These parts at Bricklink are cheeper now, back a few years ago not so. But since more kits have them more parts and so price dropped I have found them for 4$(4-5$ selling price) and shipping from most bricklinkers is fair price for USPS. Most my small orders of say 10-30$ is never more than 3 dollar...

I powered my nxtmmx's(up to 4 now) at first with a extra battery pack. Now I just tap the NXT and run it all. Oddly enough it works well in my case but say you were running cars and such that are on alot all the etime may not work. Yes batteries run down rather fast but not like most bots need to ru...

Power to both wheels is needed off road at all times or one wheel may get high of center and just spin. I just use a long axle with the wheel knobs or a bevel set up. But for best results better to never change the powers direction the more 90 degree angles the greater the lose of power. This is why...

Nice. But since it is a "Rock Crawler". You do NOT want a dif that slips. Nor would you want one even in most off road areas. It should be geared down alot so you can crawl up rocks. The stearing will need to have some power as well and be solid. Things like fully independent and such you ...

That sideways pendular is cool, it supports alot. One of the hardest things with NXT and any TT or 4x4 is the large motors. I have looked at so many on utube i think I lost my site. There are people that even run events for trial trucks, Rock Crawlers and just 4x4 in Lego most, about all run PF some...

Doc, I do not see any use in gyro's or accelerometers for your robot. I think the main issue is balance control, this can best be solved by using force sensors in the front and back of the feet. From differences in force one can calculate the position of the center of gravity. A gyro could only tel...