Lego Otaku Posted July 3, 2011 Posted July 3, 2011 Is it just me, or have we been getting a lot of bad posters lately? Probably a bot going around making posts to lure us away. Just report them and ignore them. Quote
angel06 Posted July 3, 2011 Posted July 3, 2011 hello. Really impressing I like very much your construction . Maybe that the question was already put, how many used parts? Goodbye Quote
cavegod Posted July 3, 2011 Author Posted July 3, 2011 hello. Really impressing I like very much your construction . Maybe that the question was already put, how many used parts? Goodbye well over 10,000 theres a lot of tech pins and 1x1 and 1x2 plates Quote
bensl Posted July 12, 2011 Posted July 12, 2011 well over 10,000 theres a lot of tech pins and 1x1 and 1x2 plates wow. amazing work! Quote
marshal_banana Posted July 12, 2011 Posted July 12, 2011 Any updates? Would like to see your solution for all the motorized stuff, interior and of course the tube. The rest looks good so far, but quiet familiar Quote
cavegod Posted July 12, 2011 Author Posted July 12, 2011 Any updates? Would like to see your solution for all the motorized stuff, interior and of course the tube. The rest looks good so far, but quiet familiar Familiar?? you seen it before somewhere no interior yet as i have a few shows to go to so that will get done after them, the tubes are being troublesome but i will come up with a solution, forwards reverse is as per the first post of the crawlers with a xl motor in each assembly drivinga worm screw abd then via 3 24 tooth gears to each sprocket. steering is via 1 medium motor geared down - worm screw, 16-24-16-24-8-turntabe, the crawlers turn fine on a table but i don't think they will turn on carpet etc, it will drive on carpet though. Quote
Anio Posted July 12, 2011 Posted July 12, 2011 Familiar?? you seen it before somewhere no interior yet as i have a few shows to go to so that will get done after them, the tubes are being troublesome but i will come up with a solution, forwards reverse is as per the first post of the crawlers with a xl motor in each assembly drivinga worm screw abd then via 3 24 tooth gears to each sprocket. steering is via 1 medium motor geared down - worm screw, 16-24-16-24-8-turntabe, the crawlers turn fine on a table but i don't think they will turn on carpet etc, it will drive on carpet though. Worm screw = wrong choice. You will loose about 30-40% of the power with them, due to friction. XL motors are slow. It is pretty easy to do a gearing down with regular gear, in a small space. And btw, avoid 8t gear too. They are weak. Same for the simple bevel gear. Then, it remain 12t, 20t, 36t double bevel, 16t, 24t and 40t. Try to put all the gear straight and not at 90°. It will be even more strong. Quote
Mr Man Posted July 12, 2011 Posted July 12, 2011 Worm screw = wrong choice. You will loose about 30-40% of the power with them, due to friction. XL motors are slow. It is pretty easy to do a gearing down with regular gear, in a small space. And btw, avoid 8t gear too. They are weak. Same for the simple bevel gear. Then, it remain 12t, 20t, 36t double bevel, 16t, 24t and 40t. Try to put all the gear straight and not at 90°. It will be even more strong. Woosh That just went over MY head . I've never used technic of motors ,so that whole paragraph sounds so cool . Quote
cavegod Posted July 12, 2011 Author Posted July 12, 2011 i understand what you mean Anio but i cannot mount th emotor in the crawlers to avoid a 90 degree gear, with the worm screw it all lines up nice and fits, show me how to get a strong 90 degree gear solution and i will change it, yeah the 8 tooths are weak, so may change it for a worm screw on each turn table, direct to a motor each or just 1 motor for both. ps. i have greased the worms Quote
Anio Posted July 12, 2011 Posted July 12, 2011 You can use the knob wheels (4 round teeth yellow gear). It is very strong when used at 90°. Actually, this part has been designed to be used at 90° and support high torque) That part may be helpful too : http://www.bricklink.com/catalogItem.asp?P=87408 Quote
cavegod Posted July 12, 2011 Author Posted July 12, 2011 hmm that would work, but then i would only be able to drive one side of each crawler with the other side being diven by the axle Quote
Lobot Posted July 12, 2011 Posted July 12, 2011 (edited) That part may be helpful too : http://www.bricklink.com/catalogItem.asp?P=87408 (Anio) My Technic (8043) Excavator uses these to power the tracks & they work really well, but I’m not totally sure that it would cope with the load it would be under? There’s one on either side, which allows it to skid steer, and each one contains a single 4565452 and 4514557. I guess that you could power both tracks in each pair using a single bracket & a long rod? Pages 25-27 of instruction book 1 might help, good luck! Edited July 12, 2011 by Lobot Quote
Anio Posted July 12, 2011 Posted July 12, 2011 On the real Sandcrawler, how the vehicle is supposed to steer ? With a real steering mechanism ? Or by driving the threads in opposite directions ? Quote
cavegod Posted July 12, 2011 Author Posted July 12, 2011 On the real Sandcrawler, how the vehicle is supposed to steer ? With a real steering mechanism ? Or by driving the threads in opposite directions ? the real sandcrawler as in the SM didn't steer it just forwards/ backwards, on a real vehicle either the front or the rear tracks would have to steer as it would be just to big to skid steer. and since the rear tracks have something between them then that would mean the front steered. Quote
Fallenangel Posted July 12, 2011 Posted July 12, 2011 the real sandcrawler as in the SM didn't steer it just forwards/ backwards, on a real vehicle either the front or the rear tracks would have to steer as it would be just to big to skid steer. and since the rear tracks have something between them then that would mean the front steered. The 'real' sandcrawler could also pop a wheelie. Quote
marshal_banana Posted July 13, 2011 Posted July 13, 2011 The studio model steers the same way as my moc does but the books are saying that the sancrawler steers with movable front treads. Quote
cavegod Posted July 13, 2011 Author Posted July 13, 2011 i don't recall it mentioning the sand crawler steering in sculpting..? Quote
cavegod Posted July 17, 2011 Author Posted July 17, 2011 Heres what happens when a sandcrwler is born! Quote
lincolnwho Posted July 17, 2011 Posted July 17, 2011 Heres what happens when a sandcrwler is born! AWESOME :classic: Quote
cavegod Posted July 17, 2011 Author Posted July 17, 2011 Now i know that the Sandcrawler is big but the AT-AT still looks bigger to me! Quote
Praiter Yed Posted July 17, 2011 Posted July 17, 2011 Heres what happens when a sandcrwler is born! 'snip' Brilliant! The AT-AT does look HUGE - is it the angle that makes it look like it's leaning? I'd be terrified of that beast falling or getting knocked over. Quote
cavegod Posted July 17, 2011 Author Posted July 17, 2011 Hmmmmm Must be the angle as it wasn't leaning but it does look like it Quote
wokajablocka Posted July 18, 2011 Posted July 18, 2011 I cant beleve you still had the bits to keep TLG version still together. Your MOC's are awsome Cavegod, modles I can only aspire to. :thumbup: Quote
Mr Man Posted July 18, 2011 Posted July 18, 2011 Heres what happens when a sandcrwler is born! My new favourite picture :thumbup: . Quote
Brickdoctor Posted July 18, 2011 Posted July 18, 2011 Not only does that make the set look puny, it also makes it look even more woefully inaccurate. Quote
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