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Everything posted by Zerobricks
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General Part Discussion
Zerobricks replied to Polo-Freak's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
It was already mentioned a few pages back. I hope it pops into the hole firmly.- 5,504 replies
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- rant!
- Bionicle Technic
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BuWizz Motor
Zerobricks replied to Zerobricks's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
The PF battery box will not provide the full power, just like with the original RC motor. BuWizz Motor works up to 12V, maximum continuous current is 1,1 A, with max instantaneous current reaching over 4A at 12V- 30 replies
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42126 - Ford F150 Raptor
Zerobricks replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Seems like same funtionality as 42111 in a different package. Even the rear axle seems to use a simillar setup with a ball joint... Should be easy to motorize and maybe even give it AWD though. -
General Part Discussion
Zerobricks replied to Polo-Freak's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
So you already opened the mysterious package :)- 5,504 replies
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General Part Discussion
Zerobricks replied to Polo-Freak's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
The tow truck uses orange T pieces.- 5,504 replies
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We are currently working on adding a gearbox module and supporting the large flat motor steering so that the Volvo hauler and such models can also controlled with BuWizz. Later we plan to add more modules like limiting the travels for linear actuators, constant speed module, etc... The plan is to release the protocol, but first we need to add more functionality to the app and see if we need additional FW updates. Once the app and FW are mature enough we will release the protocol.
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But the hubs have to measure current some way for center steering?
- 24 replies
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- 3 speed
- automatic gearbox
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Sound like you need hysterisis and a bit of a more intelligent shifting to avoid oscillations and such.
- 24 replies
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- 3 speed
- automatic gearbox
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Pretty sure the lego PU hub can measure the current.
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One question. Why don't you just easily measure the current/speed of the drive motor insetad of measuring it with yet another, third motor?
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Technic 2021 Set Discussion
Zerobricks replied to LvdH's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
It's not really a very large set. It's around 1:12 scale, simillar scale to the 42111 Dodge charger. -
Technic 2021 Set Discussion
Zerobricks replied to LvdH's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I did a quick sketch in LDD and there is no space for FWD unless there are new CV joints or hubs used.... Doesn't look that way though, so expect only RWD and hopefully at least a 2 speed gearbox. -
Technic 2021 Set Discussion
Zerobricks replied to LvdH's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I guess my prediction od using the Ferrari's wheel arches wasn't too far, but I missed the model from Bronco to the Raptor. No matter, seems like a lovely set indeed. It also explains why the 42124 buggy's tyres are not the usual 68,8 or 81,6 size, but 75,1 - they were probably originally developed for this set. My observations: Smaller (13 stud long) wheel arches in orange Black covelings from the 42125 orange 3x7 panels smaller scle than the Denfender, probably around 1:12 (according to the tyre sizse calculations) Expected functions: Independent suspension in the front Solid axle in the back Fake engine 4 speed sequential gearbox Hopefully a 4x4 wheel drive with 3 differentials, though I have doubts for the FWD... -
I haven't even thought about the central or rear diffs yet. What I am interested in is how TLG will solve the driveline issue in following scenarios: 1. If they are using 2 drive motors independently: One motor per axle direct drive, with open diff in front + diff lock in the rear? One motor per axle drive + gearbox for each axle + diff lock in the rear? 2. Using 1 or 2 drive motors coupled together: Direct drive to the axles + diff lock in the rear? Drive via a gearbox to the axles + diff lock in the rear? Drive via a gearbox + central diff + diff lock in the rear? Using the wave selector and a bit of smart software you could easily use a single motor to switch between 2 gears and at the same time lock the central and rear axle diff.
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Judging by the photos of the 4x4 version it has no differnetial locks, since you can clearly see the new-ish red diff inside a 5x7 frame, therebye leaving no space for a lock. You can see the PU control hub placed vertically at the back of the cab just like the Volvo hauler. I do hope it has at least a gearbox and maybe a turntable between the cab and bed to simulate the flexible chassis the original has. According to the specs, this set is in approx 1:16 scale.