Lixander

Happy and peaceful winter holidays!

Happy winter holidays to everyone! ;))

I see. Thanks for the answer anyway :)) One strange thing I noticed at the a battery boxes is that, even if they signal that there are fully charged, if you wiggle the cable a bit or plug in/ out the charging cable, the battery boxes start a full charging cycle again as there are empty.

No problem. Yeah, a metal pinion gear might damage the Lego ones :/ But anyway, I am looking forward for a video or at least for a speed measurement...........you can attach a smartwatch to the model and set it on the bike exercise mode or something similar.

Oke. Sure: I was saying that instead of the 12t Lego gear and the contraption with the plastic card, you can use a 12t mod 1 pinion gear from a hobby-shop near you. It might be hard to find such a pinion gear with a 3.17mm motor shaft hole, but you can easily get a shaft adaptor. I use one of these pinion with 5mm shaft hole, but I got a 5mm to 3.17mm shaft adapter.

Very interesting. I was also working on a brushless mode on the same trophy truck, but I stopped due to the fact that I used the new CV joints, which I found by myself that simply can`t take the speed and torque of a brushless set-up :/ Moreover, nice to see someone who managed to get such a high gear ratio using Lego gears without having tens of gear sets. Also, what motor size do you use? I wanted to fit a 3300KV 3650 sized motor. P.S. - an advice: the 1 mod 12t RC pinion fits the Lego gears perfectly.

Soo....I wanted to start testing the Lego Neo Fighter this week, but I soon remembered that the space left for the hubs was not sufficient :/ Moreover, the 1st replica had some traits of the original, but it was not so ”loyal” to the characteristics of the original. So I started from scratch with a new replica that has a chassis that ”respects” more the proportions of the Tamiya buggy and a bodywork and wing that are detachable and that also look more like the ones in the real buggy. Also, the 4x4 driveline was dropped, as the original has rear-drive, for the suspension frames I used the angled 4-6 9L lfitarms and I found a solution for one of the most annoying thing (when you try to replicate an RC buggy with Lego), which are the tires. What do you think of the new replica (the model that has blue accents)?

The 4x4 version of the Beach buggy is live on Rebrickable - https://rebrickable.com/mocs/MOC-202282/Lixander A./beach-buggy-4x4/#details

I see..........welp, then the issues are only for my hubs then :/ And I think the CaDa`s clear connectors is not compatible with the Power Up / Control+ ports Also, everything works ok when you stack 2x buggy motors on 1x port on the white JV1010 hub with PF ports?

I also spoke to CaDa after I made a video with the 4x4 Beach buggy (900g / 32 oz with 2x hubs, 2x buggy motors and 1x PF servo at around 7°C / 45°F, but it behaved the same in the middle of the summer at around 30°C / 86°F with a different model). Here is the video........it is exactly as long as the fully charged hub lasted https://drive.google.com/file/d/16dgBHmdi29Ys46QdPlTKWfytDeRBmotN/view?usp=drive_link Also, here are their replies.......the last one tops them all.

Just tested indoors a little the 4x4 Beach buggy and I can say that it runs decent enough. Maybe with a BuWizz set-up, it will have more performance. Anyway, some rectifications were needed in some spots, especially on the suspension, as the 1st set-up was too rigid, but I should manage to finish it in 1-2 weeks.

I assembled the complete hub unit of this set with the help of Philo`s unofficial files from LDraw.org - https://library.ldraw.org/parts/41282 In order to use it, you 1st have to download the .zip file for the whole unit (1st section) and make the connection points in the Studio Part Designer. Then, you can use this: https://bricksafe.com/pages/Lixander_A./miscellaneous/porsche-gt4-e-performance-hub Also, sorry for posting on this pretty inactive topic.

New W.I.P..........the 4x4 Beach buggy is in the works. The 2nd 4x4 prototype uses 2x buggy motors, the new yellow differentials and the new CV joints paired with the Audi e-tron wheel-hubs at a weight of around 900g / 32oz with 2x BuWizz hubs. The rear frame is completely new, while the front is heavily modified in order to install the taller wheel-hubs. Moreover, the connection of the front with the main chassis is also overhauled and the 6.5L shocks and the small pneumatic cylinders were swapped with a total of 4x hard 9.5L shocks. I should start test-building the Beach buggy 4x4 pretty soon ;)

Sorry for derailing from the last posts in here, but does anybody experiences issues with the performance of the ”new” and ”specially made for buggy motors” CaDa JV1010 hubs (the ones in white and with PF ports)? I was curious, as mine are pretty crappy and on the official website the PF version is nowhere to be found. Soo, my hubs charge in over 2 hours and one of them in 10 minutes from 0%, have short playtime with full battery (around a maximum of 5 minutes and for the one that ”completely” charges in 10 minutes is depleted in under 3 minutes) and I can not stack 2x buggy motors on 1x port as the 1st stacked motor will barely run and the other will stall (on the much cheaper MouldKing hubs I could stack them with no problems; that is how I reached 16km/h without having twisted fingers due to the numerous buttons I have to control at once, as with the CaDa hubs and remotes). Moreover, even with 1x buggy motor / 1 port, the power seems to be pretty low, as my models barely could run, even with a ratio for torque (1kg, 1:1 gear ratio, 3x hubs, 4x buggy motors and 1x PF servo..........the model barely worked; 1.5 kg, around 1.60 gear ratio, 2 hubs, 2x buggy motors and the PF servo...........the model made a few meters, as I just couldn`t watch how slow it was; 900g, 3:1/ 2.34/ 1:1.4, 1 hub, 2x motors and 1x PF servo...........the model was slow and had some torque but it felt like the hubs didn`t had power/ same, but a bit faster/ the model barely moves).

Hey! Thanks a lot! Not at all. But I still don`t have a BuWizz and I use CaDa (the new white JV1010) hubs now, which are pretty bad: long charging time, short play time and small current or something like that I think, because I can`t stack 2x motors on a port as one motor will barely work and the other just stalls. But anyway, I am closer than ever to actually start the project RIOT, just have to gather some bucks :/ Also, i tried other 2x models with the brushless set-up since the Retro sprite buggy MOD, but both of them had problems with the drivetrain, due to the CV joints or to the slipping gears. https://rebrickable.com/users/Lixander A./workbench/14713/