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Everything posted by lmdesigner42
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On the image you can clearly see 3 pins holding the wheel on, indicating the presence of a hub. Given the weakness of the standard CV joint hubs and the difficulty fitting wide 81 mm tires to portal hubs, I think they will probably be the new planetary hubs from 42099. I also wonder what kind of suspension there will be space for. The small gap between the front wheel and fender makes me think the front axle will be fixed, while the small amount of lengthwise space between the rear axles due to the 81 mm wheels makes two separate live axles unlikely. I suspect the rear axles could have simple stabilized pendular suspension like 42122, or a tandem live axle like 42043 in the best case.
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[MOC] Jeep Cherokee XJ
lmdesigner42 replied to 2GodBDGlory's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Nice model! The bodywork isn't super amazing, and the wheels look a little small, but it's still quite recognizable. The suspension looks a little flimsy, but it's also compact. It's great to know that non-sequential gearboxes can be programmed into PU, congratulations on putting in the effort there. Any idea what the approximate ratios are in the gearbox? It's kind of hard to see what the gear meshes are in your pictures. -
As a way of adding more mechanical complexity, could the CAT have 2 C+ motors and a gearbox to operate the blade and ripper functions, similar to 42114? I am thinking 4 ports on the hub = 2 drive/steering motors + 2 motors for distribution gearbox. The gearbox could then output to multiple actuators for the blade and ripper, resulting in anywhere from 4-6 motorized functions including lift/tilt of the blade and ripper. It would be a logical evolution of 42114's gearbox, although it would not be realistic compared to the multiple hydraulic actuator circuits on the real thing.
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The sticker-free pictures for comparison are much appreciated. I wonder if the relative lack of functions in this set is to avoid competition with the 1:8 series. If the 1:10 car sets had a transmission too, the only thing setting the 1:8 cars apart would be a slightly larger size and slightly higher level of detail, which would make the $200 extra hard to justify. I'm thinking of picking this one up for the parts, maybe on sale. It's frustrating to have the suspension setup so similar to 42077 and 42096, which isn't the best for this kind of car. The first thing I'd mod is making the suspension more like 42039, then give it an HOG somewhere.
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42122 Jeep Wrangler
lmdesigner42 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I'm impressed that Lego put full suspension including the two hard springs on a set this size, but the looks of the front end just aren't doing it for me. The hood seems a little too long and the headlights stick out way too much. -
I feel like 42125 is slightly overpriced compared to recent sets in a similar price range. I did a little research (see below) and several other sets have better value in terms of number of pieces and functions/motorization. Even the most similar set, 42096, has a lower cost per piece. Maybe red parts cost more? price USD part count cents per piece 42125 $170.00 1677 $0.10 licensed 42113 $150.00 1636 $0.09 licensed PU 42096 $150.00 1580 $0.09 licensed 42098 $180.00 2493 $0.07 42078 $180.00 2595 $0.07 licensed 42069 $180.00 2382 $0.08 42054 $180.00 1977 $0.09 licensed PF
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I agree, looks better with less stickers. It's so nice to have a red supercar again, feels like a successor to 8070 minus the power functions. And it's great to have all these relatively new curved panels in red and in a set cheaper than 42115. I really hope the suspension is not another clone of 42077 though, maybe something like 42039.
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42124 Off-Road Buggy
lmdesigner42 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This one's looking really good, especially with all the nice angles in the side profile. I'm not entirely sold on the colour scheme though, would prefer something a little more traditional. Hopefully it doesn't pull to one side when driving like 42109 did in Sariel's review, although with an identical drivetrain the chances are pretty high it will drive the same way. If it's not fast enough with the new tires, larger diameter ones should fit on the back too. -
42116 Skid Steer Loader
lmdesigner42 replied to JintaiZ's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I didn't think I'd like this set when I saw the prelim, it looked boring and square. But in red and white in the official pictures it actually is pretty cute. I'm impressed they fit the gears controlling a 2 degrees of freedom bucket in such a small space. -
This is one of the best Lego shooting mechanisms I've seen, especially in terms of capacity and rate of fire. I thought of using flywheels like that, but never got around to trying it out. Using an elastic is a great way to keep the flywheels pinched! Several Nerf blasters use hoppers, but none of them work as well as yours.
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Very interesting video! Knowing these ratios will be very helpful when designing gearboxes. One thing thing to note, I think you implied this, is that having a specific ratio between gears only optimizes the efficiency when the final gear ratio is chosen so that the motor is operating close to its peak power.