mescalinum

same to me. I tried twice and got the page not found, so I think my submission never reached the judges. I see lot of problems on the lego website recently. I think they should hire (or replace) a/the webmaster

there's also this (two of those to make one worm gear housing) ...and probably also others

OR... you can use a PF mate from mindsensors, to control up to 8 PF motors (using 4 IR receivers), using only one sensor port

what pattern do you see? anyway, it depends on the ordering of the 3 non-correlated input variables (A, B, C). it would be complex to represent graphically, because it would require 4 dimensions or some trick to organize the data in less dimensions

as Sokratesz suggested (nice idea!) I posted a list of triangles that make an almost right triangle. an error margin of 1% or less (like 8-4-9) is not noticeable at all

LOTS :) for 2-15L beams are the following: A=3, B=4, C=5, E%=0.0 A=3, B=5, C=6, E%=4.247281921415941 A=4, B=6, C=7, E%=3.981468553857736 A=4, B=7, C=8, E%=1.1368814485401577 A=4, B=8, C=9, E%=0.9947588739668036 A=4, B=9, C=10, E%=2.653350514743112 A=4, B=10, C=11, E%=3.981468553857752 A=5, B=5, C=7, E%=1.273324442653995 A=5, B=6, C=8, E%=3.1844266473320695 A=5, B=9, C=10, E%=4.247281921415925 A=5, B=10, C=11, E%=2.547158639950974 A=5, B=11, C=12, E%=1.1575542782836281 A=5, B=12, C=13, E%=0.0 A=5, B=13, C=14, E%=0.9794536742288548 A=5, B=14, C=15, E%=1.8191611975308635 A=6, B=7, C=9, E%=3.0326695964207633 A=6, B=8, C=10, E%=0.0 A=6, B=9, C=11, E%=2.3583904023815054 A=6, B=10, C=12, E%=4.247281921415941 A=6, B=12, C=13, E%=4.867809714035584 A=6, B=13, C=14, E%=3.674846866300909 A=6, B=14, C=15, E%=2.65335051474308 A=7, B=7, C=10, E%=1.2993142284600543 A=7, B=8, C=11, E%=4.551159731280355 A=7, B=9, C=11, E%=4.551159731280371 A=7, B=10, C=12, E%=2.2741256640806284 A=7, B=11, C=13, E%=0.41339236776909477 A=7, B=12, C=14, E%=1.1368814485401895 A=7, B=13, C=15, E%=2.449141671080023 A=8, B=8, C=11, E%=3.483252093800486 A=8, B=9, C=12, E%=0.44210061759915537 A=8, B=10, C=13, E%=1.9897607325877213 A=8, B=11, C=14, E%=3.981468553857752 A=8, B=12, C=14, E%=3.981468553857736 A=8, B=13, C=15, E%=2.449141671080039 A=9, B=9, C=13, E%=2.7516829051560086 A=9, B=10, C=13, E%=4.247281921415925 A=9, B=11, C=14, E%=1.929446195486564 A=9, B=12, C=15, E%=0.0 A=10, B=10, C=14, E%=1.273324442653995 A=10, B=11, C=15, E%=1.1575542782836439 A=11, B=11, C=15, E%=4.475808710688022 EDIT: note for myself - logic program used: ?- findall(_, (between(1,15,A), between(A,15,B), between(B,15,C), B<C, C<A+B, Gamma is acos((A*A+B*B-C*C)/(2*A*B))*45/atan(1), ErrorPercent is abs(90-Gamma)*100/90, ErrorPercent < 5, write('A='), write(A), write(', B='), write(B), write(', C='), write©, write(', E%='), writeln(ErrorPercent)), _).

thank god you are wrong I used a CLP solver to find all the integer solutions of A2+B2=C2 (with C<=40), which are: A = 3, B = 4, C = 5 ; A = 5, B = 12, C = 13 ; A = 7, B = 24, C = 25 ; A = 8, B = 15, C = 17 ; A = 12, B = 35, C = 37 ; A = 20, B = 21, C = 29 ; (I omitted multiples of the above solutions) of course there are more if the constraint on C is omitted, but the bigger size becomes non-interesting for technic building. EDIT: note for myself - logic program used: ?- A*A + B*B #= C*C, A #> 0, B #> A, C in 2..40, label([A,B,C]), 1 =:= gcd(A,B).

@jojoguy10 can you remove the T-junction and make 2 tubings go towards the glass? would that solve the problem? or I didn't understand what the problem is?

there is an interesting post on techbricks.nl check it out! -> "Alternative hose for Pneumatic LEGO tubing"

if you mean the flexible axles, its ends fit into a technic pin (either the black one, or the gray 1/2), so technically are suitable both for studded and studless construction

no I don't see resemblance in the cabinet nor in the mechanics @blaz62: is the suspension system inspired to some real vehicle? nice MOC btw

I own the 8043 excavator, and it has old 16t and 16t-clutch gears. I also bought 8070 supercar recently, and it has new 16t / 16t-clutch gears. maybe it is all about *when* they come out of the factory, not just the set number

+1 I love it!

speaking of GBCs to get ideas from, I think akiyuky with his creations is enlightening media] [/media]

yaaaaay a Mindstorms competition! is this the first one? or is there an archive of older competitions and winners? just a question I'm wondering... how would the robot find a pathway to the basket and how will recognize the cup?

I also hope for a new NXT 2.0 set... by the way, since the NXT 2.0 motors are already studless*, I doubt there will be an evolution on that. maybe something along the RCX philosophy (i.e. regular motors + a new PF rotation sensor) would make sense? *: when I discovered PF, I've been a bit disappointed, maybe because I was expecting something more, like servo motors ...or anti-gravitational motors -ahem, ok, they added IR remote with speed control... I'm too demanding- but I see the main reason of PF was to finally kill the last bit of studded pieces and go 100% studless by the way, PF wires have two extra control signals, maybe in the future we will see something "special"? I'd love to see a new range of PF I2C sensors

your guess is correct, sir

indeed... I exagerated the lines to make it moar muscle!! it's not a coincidence the old brickshelf folder description says "a caricature of"

could you be more specific? from the right: the 12 double bevel and the 16 tooth are part of hog steering, now not used. then there are 3 of 16 tooth gear, from the differential to the gearbox. then there is a pretty standard gearbox, I took inspiration from sariel's 4 speed compact gearbox, but make it more compact (i.e. planar)

8043 has not been mentioned it does not have a proper gearbox (it is a multiplexer in fact, allows you to control 6 functions with 4 motors) but you have all the pieces needed to build up to a 8-speed gearbox

as described here

yes, the answer is custom firmware. leJOS NXJ supports this

uhm, so can't be battery pack nor motors? can you reproduce the problem with only the PF parts alone? (i.e. motors connected to IR receivers connected to battery pack, and nothing else) or could be that you assembled the gears too tight, and motors overheat, and since they should have an overheat protection, they stop... but seems quite unlikely can you check temperature of your motors?

can you describe your problem better? does this problem appear after some time of play, or it is always present? or it happens under certain conditions? does it involve all motors or just one/some motors? maybe it is a bad contact (battery, PF cable), or a defective/broken PF wire... hard to tell with such few details

My second attempt to make a model of this car (well, it is a continuation on previous work, which only reproduced the chassis, without engine and gearbox). This is my first (big) studless MOC, and my first experience with the new Technic panels Stuffing the gearbox and the engine inside has been a huge amount of work, mounting and dismounting things countless times. (maybe this process is easier in CAD?) In fact it is not complete yet, because in order to make everything fit, I had to remove central axles for hand-of-god steering, which is now temporarily non-functional. Metrics (wheelbase, track, wheel diameter) are in accurate scale, the chassis is approximately on scale (while working on the chassis, I got pissed off of measuring, scaling, and adapting, moreover, chassis had to be retouched when working on engine and gearbox). (for reference: wheelbase is 3 studs shorter than 8070) Doors and front hood do open. Driving wheel is functional. Hand of god steering is there, but temporarily non-functional. Engine is V8 (not a V10 like in the original car, because I miss two LBG cylinders, and probably won't fit). Gearbox is a 4 speed, manual. Comments welcome