RohanBeckett

I agree.. with @JopieK Boost is too new - you could very well be the first person in the world to break that bit, and need to recreate it! so the challenge, and glory can be yours! ;) Maybe if you can supply accurate measurements, @efferman might be able to help? https://www.eurobricks.com/forum/index.php?/forums/topic/91294-effermans-custom-parts/

haha.. thanks for the post! still only a work-in-progress.. it needs to have it's own ball input. I'm almost thinking of having something that feeds balls in pairs.. as two balls going around looks pretty cool!

Very nice! always like a well-decorated module! and showing the mechanism underneath is great too! Yet another one of yours to add to my 'to-build list' :)

From the venerable Mr Isogawa: Hope they do a firmware update for boost+wedo hubs, to allow them to use the PU motor!

you gotta be kidding.. I'm right in the middle of doing a dragon conveyor just like this!!

I have built Nico71/David Manleys one.. but found the input unreliable.. so will redo it one of these days Was thinking of using a stepper, that guarantees 1 ball at a time, to feed onto the conveyor... rather than a 'tumbler-style' conveyor, that can occasionally bring 2 balls up I do like your numbers setup.. although a lot more brick-intensive than their design!

ohh.. at 30seconds, I see a ball dropped!!! ;)

your link just goes back to here!

Thanks.. I know it's not an easily-reproducible GBC (no way I'm doing instructions!) But I'm happy with how it turned out... will probably pull it apart in a year or so, and use the rings for something else

You know.. this would be a great future competition: Build something that would fit in with the 8888/8889/8890/8891 Ideas books So.. Studded.. and no parts newer than 1991 :) Oh.. and great build louisk - but you lose 5 points for using a modern white silicon band!

So what do you build, when you have 4 Hailfire wheels? an oversized GBC module! I had an idea to build this a while ago, and finally finished it for Brickvention 2018, in January. However, it wasn't reliable enough, and ended up needing 2 motors to drive it. I recently rebuild the main geartain, using better parts, and working hard to get rid of all friction points. It now runs MUCH better, on a single L Motor. Front loader section is an Akiyuki design, from Cycloidal Drive. The rest, including the Brick Separator down-chute is my design. Due to the design, I was not able to use the inner teeth to drive the wheels... as the scoop would interfere.. so I had to drive it by the outer rim This has been done in the past, by other builders, using tyres. Somewhere along the line, I noticed that the old Samsonite gears from 1965 meshed perfectly! (The Expert Builder ones do not) I attempted to have the stepper/loader synchronised to the wheel, but unfortunately, I was not able to get any combination of Hailfire external teeth + Samsonsite to equal an even/repetitive interval. Turns out that it takes 7 revolutions of the Hailfire, before the same tooth on the Samsonite match up again! So.. that does mean, that occasionally, it'll feed in a ball at exactly the same time a scoop passes... and while most of the time, it bounces back into the main wheel.. sometimes, it bounces back, and spills. There is a small collection point for such spilt balls The Scoops are a simple build, and are held in place via friction the Hailfire wheels are supported by 1L liftarms on an axle, and there are 4 rubber wheels at N/S/E/W, that the Hailfire leans against, to run smoothly The drive-train feeds up and down each module - with the motor attached at Blue, since it's at the mid-point.. At the bottom of yellow, it connects to the front loader section. And since it's SO big, I needed to build it modularly! So it all comes apart easily! Looking forward to running this improved version at Canberra BrickExpo next month! Oh.. and apart from the depth.. it is actually GBC standard! :)

2 half bushes definitely have more friction.. it's a common Official Lego technique, used in many sets, when the designer wants to make sure an axle doesn't slide out

I agree with @pleegwat - if you watch the real one, in the youtube video you linked... and put the playback speed on 2x ... you can see the motion MUCH more easily... the whole thing raises up. The main wheel starts spinning The whole top section tilts to one side (1 hydraulic ram, most likely) and then the whole top section rotates The opposite motion of the upright barrel cover adds to the illusion that more is happening I really don't think huge rides like this are engineered more complicated than they need to be... why use 4 actuators, when only 1 is needed? While I think yours WILL work just fine - I don't think it's whats in the real one. Yours will have the ability to just tilt in 1 axis, if you choose.... and just thinking in my head... I'll be curious to see what the motion of the hanging chairs will do! :)

except at 1:13 where it fumbles a dropoff!! :D very nice version of 'fast ball sorter'... and same.. as much as I like 1-motor-mechanical solutions.. when someone does a mindstorms module that perfoms a *really* neat trick, I'll always be impressed!

hmm.. I remember something like that happening with mine.. but then fixing it.. not sure if I swapped a part, or had just built it incorrectly unfortunately, I can't help out, as mine is currently on loan, in another state...500+ km's away! :D and I won't be seeing it again until August! (unless @Captainowie wants to unbox it and test it out! ;)

If you have access to a phone/camera that does slo-mo video.. try recording it in that (might need good sunlight, or brighter lights) I've solved a few GBC issues before, by watching playback in slomo, and realising where certain things catch, or where balls are hitting...

A couple of videos of mine: When I first finished it (and yes... it does drop the first ball!) and a bit later, at a small lego club meeting: I also modified the area around the pickup, to prevent balls falling in I had to alter the gearing, so it was lower, and didn't get in the way of the clear panels (which easily lift out)

gee... now you're going to drive up the price of those teal bush pins!!! :D

anyone remember when Lego started doing regular twice-yearly releases? for all of my childhood, it was pretty much 1 catalog, 1 series of sets per year... with some popular sets hanging around for 2-3 years (this was for all themes, not just technic) I do personally think that they do release too many sets each year...

for some of us.. leaving it to the last minute is key.... we do our best work under pressure! ;)

Yes.. I did that before starting my build... Double check the arm build - especially as the rotors are not perfectly symmetrical in their construction... and it's easy to mis-build one arm, as you are naturally wanting to do the same as the opposite arm :) I definitely have most drops off the pickup

There should be plenty around... Just send the seller a question before buying! ask them if it's the PF switch with the tiny black selector switch... there was easily 8 years old the older version, before the new one came on the scene

It took me a fair bit of tweaking to get my Tilted Rotors working reliably.. I started with ensuring that the turntables were silky smooth - swapping out old, with new ones, when I got them at it's first show, it dropped a lot of balls, but at home, it worked a lot better. It's very sensitive to how flat the table is, and if any of the arms are even slightly twisted out of alignment And even when you get it running 99% perfect (1 ball dropped every 100-200), that one that drops, will randomly bounce off the pickup scoop! I redid a bit of the bottom - flipping some of the gears over, so I could put some clear panels over the gear/box section, below the pickup.. so balls would never fall in. As nice as Akiyuki's standard box frame is... it's a nightmare to retrieve balls from, especially during a busy show!

Humans have bickered over things for thousands of years... I'm pretty certain it's in our nature to argue... Internet forums tend to just amplify things :)

2017's 42070 B Model: 1981's 8859 B-Model Both equally odd! :) Personally.. although I've been a Technic fan since age8-9 (was born in '75), and I've owned and built a large amount of studded, and studless sets.. I'm on the camp of 'swings and roundabouts'... some good sets.. some poor sets in every years' release And lately, since I've headed into a specific niche (GBC), I'm not as excited about sets as I used to. Since I look at every set as a 'parts pack' and if I see a set with a lot of 'useless' parts for me.. I often skip it - in favour of spending my Lego Money on bricklink orders, for the exact parts I need. I did a tyre stocktake the other weekend.. and I have well over 200 tyres from technic sets alone!! the last thing I need is another set with a dozen wheels! :) But when I do buy a set, I definitely prefer ones with interesting mechanisms/linkages, and a good A and B model