aFrInaTi0n

Nope, just like other cheap china 3rd party ones full 90° turn possible with them. And I am also curious if those knob gears will easily be shattered or if they withstand the high rpm scenario... At least they should not skip - until they maybe break... 🙄

Yepp

Limited by the length of the carbion axles - as having a set of 4,5,6,7,8,9,10,12 and 16 axles as possible ones to use Could also be replaced with regular 3. plastic piece to hold them together.. but metal > plastic :) Haha, doing all things right in term of the yt algorithm I would say :D Not sure if that would would out for the motors -> the (knob) gears are creating the huge need for an additional stud to be placed under - trying to put the drivetrain between two buggy motors wouldn't work in that arrangement.. Steeper servro would then be also on ground level with its casing,but worth a check - I had a similar issue with another MOC of mine, where the servo was technically blocking a panel, I think this could also be the case here. Same here, after I have seen your post I am still curius :D

Hi folks, I started working on a little driftracer and would like to share it to you to get your thoughts. Primary intention for building was putting "doubledosed power" (2x buggymotors, 2x Buwizz) in a configuration which is compact, has the weight positioned as low as possible & also being balanced for having a symetrical design. It's my 1st 4WD MOC to take shape ever - so be easy with me.. Background Some days ago @FriedlS posted a thread with another of his great drift chassis designs (Another 4WD Drift Chassis Project) and it got me very curious about the steering-arm approach he implemented in his chassis (with 87408 as the arms) as it allows with little change to create an arm capable of holding the old u joints (62520c01) OR their metal 3rd party replacements - as this was the missing piece in my head to start a RC MOC projecton on 4 wheels enforced with ballbeared 3rd party liftarms and also using carbon axles for the drivetrain. Features 4WD 2x Buwizz3 mountable (or other 3rd party 8x4 battery boxes) 2x Buggy Motor Enforced drivetrain Ballbeared special parts TF Engineerings "Flange Bearings" (Linkie) by @Bensch55 Metal Technic Parts' "Aluminium Metal Beam Bearing Block liftarm" (Linkie) Carbon Axles Pro Very compact and powerful design Balanced and optimized for low position of weight Contra No suspension No caster angle Nearly no ground clearance & high risk of damaging the Buwizz bottoms easily (if Zero reads: Is Fortronik selling bottom housings for BW3 separately in batches of >4?! ) Rear buggy motor may just allow hatchback types or oder body types which would compensate it Drivetrain The drivetrain is pretty simple and my hopes are it can withstand plenty of forces to be applied to it. Drivetrain + Motors + Servo alignment: Removed easy-access bottom panel (color-coding: blue 5l liftarms = MTP ballbeared; red 3l liftarm = TF ballbeared; lime u joints = metal replacements) Current Status Studio .io file created Protorype built 3rd party Servo was faulty and killed itself (yeah yeah, I know I know - you get what you pay for ) and needs to be replaced + weather conditions need to get better (currently raining on a daily basis..) or me having enough energy to use some local parking deck at night to have dry conditions.. Renders All renders can be found here in higher quality: https://bricksafe.com/pages/aFrInaTi0n/enforced-4wd-driftchassis Plain finished bottom for maximum downforce (just kidding, won't really be a thing at that scale / low speed) & to safe the drivetrain from dust or stones to get into the way All the ground clearance which can be expected from this with regular 44309 Wheels.. (1-2mm maximum) As I was already working in Studio I was checking some body options - so here is what I came up with after little rough hammering for some front of some little hatchback racing beast: Real Pictures to be added Videos In the last days I haven't had any possibility to get to a place with good clean and dry conditions - so for now just a little dryrun burst test for showing of the theoretical capabilities (broken servo still in, so couldn't show the steering): So I am happy to get feedback and opinions. I will update the thread with more testing results & hopefully some good footage of it too!

Meeeeh, 3rd party components... should have tested the servo before putting it in - it was oszilating at the 0° resting position and it warmed up pretty heavy... so I need to unbuild the front -> I may directly go for PU motor to have analogue input... Edit: Cleared out pictures as I created my own thread for my chassis

Same guess here - but the question is if my bet "pure (doubledosed) buggy power" will work with currently having no caster angle - fear is the answer may be "no".. but I guess a testdrive shall answer my questions.. Maybe doing this tomorrow.. I guess the Buwizz can' be placed any lower... 🤔

Little update... getting a little bigger than yours & currently no caster angle, but shall get something like this (3rd party batts, servo and motors for rough size estimations and later shredding without hesitations... buwizz are flying around elsewhere and shall go in instead of the 7.4 batts.. 🙃) Replaced beveled gears with knob cogs, as they should be able to transport more power without skipping. Also the motors are driving the main drivedrain and this is evenly distributing the power to front and rear vs your starting from the rear going to the front (not sure if it makes a differenc at all..). Axles are carbon ones (I may need to check more narrow metal joints - use some forbidden liquid reinforcement aka superglue to keep the outer axles in the frontwheel joints.. Need to adjust the steering rack one stud further to not have a too huge angle @steering.. Edit: I removed my pictures as I created a distinct topic for my approach..

Friedl we have to talk, you are no good influence to me... 🤭 Never thought of this small scale solution + allowing for also putting metal / regular old joints in... Offset to the wheels is increased by 1 stud, but I think this can be ignored for having metal parts over plastic ones... need to find out if I can adjust for two buggy motors in the small chassis without getting much higher or wider.. so thanks for this huge inspiration already for a super small scale fwd/4wd design! 🥰🥰🥰

uh, nais - thank you very much! 😍

Really nice chassis. Would be interested to see the steering in detail.

The tendency to flip is pretty high - at least on a plain and grippy surface..

@grab_a_beer_and_build_lego Thanks for the bug report - as LDraw changed an URL, my tool wasn't pulling in the latest versions on a daily basis! So huge thanks, otherwise I would not directly have recognized this!!! As a reward here is your requested zip package link: https://www.reum.it/ldraw-to-studio-exporter/index.php?part=48156p01.dat Merry Christmas :)

Christmas period is generelly considered to be rough, becasue of the western world having the christmas and also chinese new year - so I consider Nov-Feb as a period where it can be expected to take naturally longer..

I think my need is even more simple, as the top plate should basically be rotated at the edge and in the same direction as the other two joints. so basically all three joints hall work in the same direction / dimension. Anyways I need to watch the mechanism some more itmes to get the idea.. thanks already! Edit: Ahh got it now, it was more about the lever transporting the movement to all joints, not about the rotation - Much more helpful after understanding what was meant! Edit: I am always forgetting that different lever offsets are also working for doing translations like gears..

@grab_a_beer_and_build_lego You are right, its missing but should not - I will take a look the next days and post back here whenever I know the reasons. Meanwhile you may use the direct download function of the Ldraw lib (but then only as one unified .dat file - bottom left on the page you linked, direct link: https://library.ldraw.org/library/official/parts/48156p01.dat)

I would like to have some second opinions for an unfolding mechanism for some cubus: Basic idea is to have a cubus of equal length sides (obviously by its name.. ) unfolding itself to have: Two walls / sides being angled at their bottom edges by 90° to have their insights brought into a horizontal position The top being turned around 180° and also being lowered to the ground to form some higher horizontal plateau, also resting in a horizontal position Short quick & dirty drawio sketching to give more imagination: Left side: Top of the cube in the 180° turned and lowered position /// Right side: Top is on the cube, its insides are upside down Should theoretically be a farely simple mechanism as the bottom and top joints just need to be reduced by factor 4 to have all joints (roating gears) being moved with one source of power, right? (besides weight being a thing, but thats on another page..) Would be interest in critical opinions or better ways to solve my issue. Oh yes, the childhood half bushes are freakin awesome when it comes to grip on axles... :D

The higher, the bigger the effect - so as Zero pointed out: try to work from the highest objects downwards to lose some weight..

Looking pretty nice, looking forward to see it in action!

This would make it possible to file a GDPR case if one can proof some distinct mailadress for just one shop is being used as target for other ad campaigns..

@dustblue lol really? Wouldn't have wasted that much of money into such a cumbersome project.. Here we are again - since the 1y-overdueed version released in beginning of the year, N-O-T-H-I-N-G happened to fix the obvious bugs! "blabla the BT stack had to be exchanged" - cool, this is done since a year? Now it is taking you one year to work on a controller integration? (may be overdue also as a feature, but there are more severe bugs to fix first!) Still no updates for the outage issue, no failsafe, NO NOTHING. I am not mad at Zero but at Fortronik d.o.o. for their ongoing and persistent lies! (I may remind of the bold statement of "faulty batteries will be exchanged by us for free" which was just a lie and the best option one may get is a 20-30% coupon to buy a new complete Buwizz 3 unit..... Are they f***ing kidding us?).

I agree, CaDA is stepping up and doing all the things right with their custom panels, new unique powerplugs, own aquired licences... Seems "this other play-fair company" won't have anything to interfere / stop them in the future for importing their products into markets like europe etc... Also then they will have one real competitor in the shops, which will make their prices obviously overpriced. I am so looking forward to see the danish start sweating because of their bs management which seems to have only ROI in their minds..

Plastic bushings and bearing have a certain lifetime as the material is very soft and can easily deform on high temps - I would put it under "regular wear". Do yourself a favor and order ballbeared ones from TF Engineering.

Maybe put it on the wishlist for better driver ICs for a Buwizz 4

@dustblue has a valid point... if only the affected driver channel / IC could be shut down instead of the whole board falling over and losing all its connectivity.. As stated already that would heavily increase the user experience. For my superbike mocs the buwizz usb port isn't easily reachable, so for some mocs the current behavior of the buwizz shutting down completely (or even worse going into its protection mode which needs to be resetted by giving usb power for the pcb bcm to recognize the batt power has recovered from its undervoltage...) is a not so nice situation.

I can only give good feedback on @ZENE. As stated before in the thread two units are working fine for me, also with pretty fast shipping (10-12days it was from CN Mainland to Germany), packaging was also really good (cardbox with single-packaged units in the package). I wasn't yet able to give it some deeper testing of the units itself. I will write you a mail when I am ready @ZENE (read your mail, but wasn't able to answer yet). I personally am open to invest in people trying out new concepts which could improve our technical creations in the long run - @Krxlion I can understand being cautious but at least I got delivered what was offered on their site without having any claims - maybe it softens your concerns to some little degree :)