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Everything posted by Rockbrick
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Autopump
Rockbrick replied to Zerobricks's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I made this mod on my 8421 with a spare RC motor - man that thing pumps quick and well i'm sure it will hit 12psi but its limitations were the air slipping the seals on the pistons when I put some really heavy weights on the hook of the crane arm - I dont think you can combine this with an autopump switching/clutch slipping add-on without something burning up with the friction - it spins too fast. very light though. -
Small 4x4 jeep
Rockbrick replied to TomasHubik's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
For example this model is 4x4 (one diff only but easily you could fit 2 in there ) http://www.brickshelf.com/cgi-bin/gallery.cgi?i=5316339 also the smaller panda 4x4 that was on here recently - did not use diffs like your jeep and handled really well -
Connecting Tri-Liftarms
Rockbrick replied to SNIPE's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
would look like s**t but how about: + or -
HOG made it easier to convert LHD to RHD - I remember converting 8860 and 8865 to RHD even though where I live we are LHD all part of wanting to modify and experiment - if lego produced L&RHD versions then not only would it cost more to print two different instruction sets/box art, it would lead to less creativity...
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DELICIOUSLY retro - its like looking at an early 80s ideas book ..... Boo to the use of studless beams and new style cogs on a nice old diff though.... ;-) (also why the diff if the truck has no steering?)
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Nico71's Creations
Rockbrick replied to nico71's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
i'm lost for words... -
[MOC] The Black Mamba GT
Rockbrick replied to rm8's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
love this much fun in this much scale...! -
in all these fine lego non-minstroms solutions the diff locks up transfering all torque to BOTH wheels hence this is why not entirely a proper LSD as found in cars with traction control etc... the torsion diff is the closest and most elegant we're going to get with non-minstorms / pneumatic solutions
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[MOC] Trax
Rockbrick replied to blaz62's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Ground huggingly smooth.... -
love the rubber band idea - and the adjustable tension one thats just geniusly simple... perfect for crawlers and the like. ...however all these are just to improve torque to both wheels for off road use and overcoming one wheel getting stuck = almost lockable diffs they are still not true L.S.D. which will transmit all the torque the the wheel on the ground when one wheel is in the air (which will normally spin) mechanically we are limited to how this can be done with modern electronics and abs and pulse-breaking this is achieved on modern cars... for me the rubber band is as close as functionally / useable we need it to be - no point over-engineering for little further gain.
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Concept Car Hubless Wheels
Rockbrick replied to raus's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Technically unique, functionally superior and even a nice looking car too! -
2014 Fox 8x8x8
Rockbrick replied to Zerobricks's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
i'm in love...... :wub: -
Technic in Design Limbo?
Rockbrick replied to allanp's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I think that if you want to immediately modify the set and customise it then lego have succeeded. If the set was perfectly playable from the start (after a nice long satisfying build of course like 8880, 8043, 9348 etc) then you will get bored sooner.... -
Small 4x4 jeep
Rockbrick replied to TomasHubik's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Not totally impossible - you have to think outside the box and perhaps use them longitudonally