HorcikDesigns

Curved gear rack with this orientation of teeth? Sounds like some unorthodox (and unorthogonal) teeth geometries were used to make it work. The train will then need precise positioning while going on that curve, which will probably add some stress and friction... Looking forward to see how the gear wheels meshes with it under different conditions and loads.

Good job!

@Krzychups The wierd hole is previous version of coupling with the output shaft. It had to transfer the torque (thus not circle), and help with centering and alignment of cross axle inside the output shaft. Before releasing the file (but after photo session) I realized that square hole will serve this purpose much better. And good job with the car! Do I see right the in-wheel motors?

Yes, it is designed to take up only 32mm (4L) of space.

@everybrickasculpture. Wow, thanks. :D @gyenesvi@gyenesvi yes, keeping the ground clearance was my intention to improve from the previous model. Well, the gears are still plastic, and they can be easily re-printed when needed. After that transmission gearbox I have planetary hibs in wheels, so that makes addotional reduction. Originally I have used 1000KV motor, then tried it with 2000KV which seems OK. I would like to keep the RPMs as low as possible to minimise the wear of the parts. Of course, there is axlehole inside the output. However, there is round hole on the end to allow new CV joints to be inserted flush with the pinhole matrix.

Hello Brushless motor fans, I am back with new 3D printed accessory for our MOCs. This time it is compact 33:304 (approx. 1:9) gear ratio gearbox. Files available for free download: https://makerworld.com/en/models/1908460-gearbox-for-custom-motor-for-brick-models#profileId-2046273 It was designed as evolution of my previous motor-to-bricks adaptor, so they use similar parts. I also tried to make it very compact with good variety of attachment points Originally it was supposed to allow gear shifting, but it seemed as too complicated for now. In future I would like to make more versions with different gear ratios. This one is very slow. It uses module 0.8 and 1 gear teeth, so you can use standard 20t LEGO wheel and some pin connectors as output instead of the printed parts, if needed. Questions? Ideas for improvement?

Nice idea to make boxes for the components! Can they be snapped onto studs?

I doubt they use Formlabs Fuse for this task. There are many more industry-focused machines out there. Do not forget the cleaning of the parts that would take some time and cost too.

Well, you deserved this for one of the best and most complex review content these days. Well done!

Do we have more information about the material and technology that was used for printing the small locomotive? It looks like SLS (sintered powder) which would allow for large quantity of pieces.

Good job!

Not to discourage you, but using worm gear in offrad car at such speeds with plastic parts is great DIY project to learn basics of friction welding (buggy motor is enough to do this). I would recommend to find a different way to reduce the speed, or find somebody in your area with 3d printer.

Nice! Does the gearbox withstand high RPM of the brushless motor well?

Hello, can you send me link to that bearings? I might find the file and try to make a new version of the file. ;) By the way, awesone MOC you got there, its full of inspiration and nice technical solutions.

Well, we all feel the urge to at leat once in a lifetime build the model of our real life ride of choice. Now my time has come to join this club (or send a very polite application request :D) Well, here it is, full in its slowly rusting glory. But still work It is being built for the next LTRC event (racing with midscale cars), where optional theme is "ordinary car". Hence the number 8 on the side. It use two L motors, RWD (I still investigate ways to change for FWD), geekservo (I also plan to swap it, at least for release version), very hollow interior ehich will be packed with seats and dashboard. Which version of the front light do you like more? Left or right? And what about rear lights? Are they OK, or should they be modeled like the front ones? Keep in mind itis still a WIP and it is being built as racecar for now, so model team style was not a way to go in order to save some weight. I am xurious to hear your suggestions how to improve the design. (it is built from memory, no blueprint was used so far - I know, it would greatly improve the overal dimensions.)