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Everything posted by 2GodBDGlory
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That is interesting! So Lego servos have those 14 segments, no-name AliExpress ones have 3 segments, and CADA ones only have 1 continuous segment. I would agree with @R0Sch--they must be using an entirely different system to encode the position it's in. That would imply that it is continuous, but it limits the controllers that it works with. I wouldn't be surprised if this turns out to be more reliable, though! Those segmented contacts seem to have caused a lot of problems with my Lego servos, so if CADA has developed a different system, I'd be hopeful about their durability
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Minifigures would be expensive, to be sure, but I don't imagine it would be too difficult to print out your own stickers, if you don't have anything against custom ones!
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Looking good so far! It's always nice to see people build complex, realistic, suspensions
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That is really bizarre! I wonder how that's possible given the hardware. I'd be curious to see somebody disassemble one of those motors so we could see whether the plate contacting the brushes has 3 or 14 different sections on it, as I've observed on AliExpress and Lego servos, respectively. It's likely not worth risking a good motor just to learn that, though!
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Nice job! I was intrigued with that in the video in the RCDeck topic, so I'm glad to see a fuller presentation. I really like how this model manages to both look really good and have really good performance! Too often models only have one of these things, but having both of them makes for something much more fun to play with, in my opinion!
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General Part Discussion
2GodBDGlory replied to Polo-Freak's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Thanks!- 5,466 replies
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General Part Discussion
2GodBDGlory replied to Polo-Freak's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
How many parts will remain exclusive to the Osprey? I'm sure I could figure it out, but I expect someone on here is already keeping track- 5,466 replies
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42177 Mercedes G500 4X4
2GodBDGlory replied to SNIPE's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Well, if it were an RC model that would definitely be interesting, but I don't think anything suggests it will be -
General Part Discussion
2GodBDGlory replied to Polo-Freak's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Ooh! So that's what's going on there! Very cool!- 5,466 replies
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42177 Mercedes G500 4X4
2GodBDGlory replied to SNIPE's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Oh, my preferences for what a Lego set would model have little to do with the real-world advantages and disadvantages of different systems! It's just that a model of the EV version in Lego would have far less potential for interesting functions than an ICE one. If it's a model of an ICE one, there's potential for differential locks, a transfer case, a transmission, and a piston engine, while if it's an EV one, I guess at best there's U-joints running from the suspension to simulated electric motors. Though on re-reading that article, it does mention that the real-world EV one has a two-speed transmission attached to each of the four electric motors, so if Lego were to model that, it would actually be decently interesting. I just think it's a lot more likely to have mechanical complexity if it models an ICE one! -
My mechanical clocks
2GodBDGlory replied to Davidz90's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
There's some impressive engineering going on in there! It's quite interesting how those magnets improved the accuracy so much, and the compensation for thermal expansion is pretty next-level! -
Dodge RAM 1990
2GodBDGlory replied to syzygy87's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Ah, nice job! That is a very detailed grille! I especially like the thin gap between the cab and bed, and the nicely formed wheel arches in the bed -
That is a very good set! I recently acquired it, and it has excellent complexity in both flight control linkages, and in the transmission. Recently I've been studying helicopter aerodynamics in college, though, and discovered a somewhat significant flaw in the cyclic pitch mechanism. In the Lego design, you pull the stick forward, tilting the swashplate forward, and increasing the pitch on the rear rotor blade. This makes a lot of sense--you'd think that increasing pitch in the rear of the helicopter would result in tilting forward. However, real-life helicopters have to compensate for gyroscopic precession (https://www.copters.com/aero/gyro.html), which essentially means that in order to make the rear of the helicopter lift, you actually have to increase pitch on the blade on the left (for CCW-rotating systems) in order for the increased lift to actually come into effect 90 degrees later. So, for a 5-bladed rotor system like the Airbus's, the swashplate should actually be tilting at a different angle than the control stick. (Two-bladed rotors can just offset the pitch linkage mounting points by 90 degrees) I can understand Lego not including it, since it's counterintuitive and might just confuse rather than educate audiences, and because it would be more complicated to implement, but I thought it was interesting that it was unrealistic in that way.
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42177 Mercedes G500 4X4
2GodBDGlory replied to SNIPE's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Yeah, the looks would be similar--I just hope they model the gas version, so we can get a proper drivetrain and engine in it!