DrJB Posted November 14, 2015 Posted November 14, 2015 (edited) I came upon this on YouTube: It's a rather impressive build, especially the demo (towards the end) of the vehicle still having traction, while two wheels on the side are not touching the ground. Anyone one knows who the author is, and if there are instructions? Edited November 25, 2015 by DrJB Quote
TheItalianBrick Posted November 14, 2015 Posted November 14, 2015 In my opinion, as a purist, if someone is using non LEGO parts then should be looking at something else…like metal RC cars…. Quote
Technic Jim Posted November 14, 2015 Posted November 14, 2015 That thing is insane. I know that some of you won't agree with the 3D printed parts but that is what normal Lego is just designed by more (this could be debatable!) advanced 3D design users. (OK I know that Lego is injection moulded, but you get the idea) PS. 100th post. Citizenship awaits. Yay. Quote
Shadocko Posted November 24, 2015 Posted November 24, 2015 Hello, I'm the builder of this model. I have not taken part in the community until now, except for some occasional YouTube videos, because I already have little time to actually "play" with LEGO as it is and I'm afraid participating in forums might end up eating a large chunk of that time. Anyway, because I witnessed a surge in YouTube views spawned by this thread, I figured it might be the time to give back to the AFOL community, so here I am. For people looking for building instructions of the OVERKILL AWD, sorry but I dismantled the beast without making instructions first. However I think I have detailed video footage that was not used in the final video, notably of the portal axle with tilted kingpin, so I might be able to model the axles in LDD (well, without the 3D printed parts and if I ever find the time and courage, that is). Now regarding 3D-printed parts, I know there will be purists looking down on those (don't know if a lot of people got the joke with Emmet's girlfriend), but my take is that 3D-printing gives the power to make the parts that feel like they have been missing from the official LEGO lineup. For that reason, I'm not interested in cosmetic parts and try to make mostly general-purpose functional parts (even if I might also end up making some rather specific parts like the half-width gears or 4.5L half-width beams...). That's why the Torsen diffs are huge as pointed out by @efferman: those are made from general-purpose (and mostly official) parts. The only 3D-printed parts that are really required in the Torsen diffs are the helical gears (can't make a Torsen diff without them) and the bevel gear with a pinhole at the center (might be replaced by a tunrtable but more gears would be required for the change of axle orientation). Quote
JJ2 Posted November 25, 2015 Posted November 25, 2015 I'm a huge fan of your model Shadocko! The I have tried myself the kingpin inclination but have failed because of the arms being to big. your 3D parts seem to have solved the issue. The torsen diffs look very strong and really improve the handling of the model. Do you have a plan for a 2.0 ? No pressure ! Quote
MaxSupercars Posted November 25, 2015 Posted November 25, 2015 (edited) I have posted this several times. Here small 3D printed Lego torsen diff. designed by Efferman with helical gears... Max Edited November 25, 2015 by MaxSupercars Quote
spadgy Posted November 25, 2015 Posted November 25, 2015 I have that 3D printed Efferman worsen diff (bought through Shapeways). I warm to the purist arguments, but I rarely resist curiosity around 3D printing (including far beyond Technic), and it's a great little diff. It was easy to clean up (and I'm a real amateur there), worked well on a test chassis for me, and proved a great way for me to understand the benefits a worsen brings. Quote
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