Dafgek81 Posted February 11, 2015 Posted February 11, 2015 In Holland it is very common that dumptrucks have 5 axles. Most of the time the first three and fifth axles are steered. Also the third axle can be lifted when driving empty. In Holland most dumptrucks are Ginaf, Scania, DAF, Terberg and Volvo. Mercedes is more commonly used in Germany. And there 4 axle dumptrucks are also more common. Quote
andythenorth Posted February 11, 2015 Posted February 11, 2015 (edited) FWIW, in any UK city, some of the most commonly-seen trucks are these 8x4 tippers with a clamshell hiab. They're not used on general haulage, they're used by civil contractors for street and utility works (sewers, gaslines and such). They haul in asphalt, aggregate etc, and haul out rubble. Some even have racks on the side for mounting power tools (whackers and such). This one is a pretty typical example, happens to be a white Arocs. http://lcvehiclehire...iab-crane-1.jpg Edited February 11, 2015 by andythenorth Quote
MrPaulo23 Posted February 11, 2015 Posted February 11, 2015 This one is a pretty typical example, happens to be a white Arocs. http://lcvehiclehire...iab-crane-1.jpg very cool, I'm thinking of raising the dumper bed for more load capacity. Quote
Emmi Posted February 11, 2015 Posted February 11, 2015 I wonder why LEGO Technic sets never use windows for the cabins, etc.? Would it look bad? I don't think so. Also I'm so so so excited to see the Ferrari F40, the next LEGO Creator Expert set rumored for this July (VIP members). I love the VW T1 Camper Van and I love the Mini Cooper. I hope TLG is working very hard on the Ferrari F40 :) Quote
DrJB Posted February 11, 2015 Posted February 11, 2015 I wonder why LEGO Technic sets never use windows for the cabins, etc.? Would it look bad? I don't think so. We had the same thought. I just started a thread on this very topic: 'Glass' in Technic! Quote
Siegfried Meyer Posted February 11, 2015 Posted February 11, 2015 Well anyway back to the Arocs.... Has anyone figured out how the steering works as I suspect that we will see the same crappy steering as the 8110. In the last YouTube clip it seems that the second axle returns to centre befoe the first starts to move. Hopefully its something we can easily MOD Quote
Emmi Posted February 11, 2015 Posted February 11, 2015 (edited) Hopefully the steering will be fine. I think TLG learnt from the mistakes with the 8110 steering :) This picture below would make for a great addition to post #1 of this topic http://www.eurobrick...showtopic=99511 Edited February 11, 2015 by Emmi Quote
andythenorth Posted February 11, 2015 Posted February 11, 2015 (edited) Has anyone figured out how the steering works It's push-rod not rack and pinion. Some of the videos in this thread show closeups on the steering while operated. It's inevitably likely to have some amount of slack and slop in it, the suspension + the push rod setup demands that the steering has multiple articulation points, and at Lego part tolerances, that introduces slack. Ultimately it's a fun toy, not a precision scale model 8110 problems were multiple, but it was an utterly different steering setup. - 8110 axle moved under spring compression, due to Panhard setup. No Panhard on the Arocs AFAICT (parallel trailing arms). - 8110 steering was heavy and steering performance was very poor; Arocs is probably a lighter vehicle, probably doesn't use stiff pins in the kingpins, and the wheels are smaller and have less resistance to scrub - 8110 kingpins mounted very far from wheel center due to portal axle parts, so large scrub radius; Arocs doesn't use the portal axle parts Edited February 11, 2015 by andythenorth Quote
nicjasno Posted February 11, 2015 Posted February 11, 2015 Also, arocs seems to have the correct caster angle :) Quote
Siegfried Meyer Posted February 11, 2015 Posted February 11, 2015 (edited) Thank you for your explanation on the steering set-up Andy Ultimately it's a fun toy, not a precision scale model True and agreed, but IMHO the "slack" seemed a bit excessive between the movement of the first and second axle in the last clip from Promobricks Do you know if this steering system was used in any other official set before the 43034? Edited February 11, 2015 by Siegfried Meyer Quote
sama Posted February 11, 2015 Posted February 11, 2015 Thank you for your explanation on the steering set-up Andy Ultimately it's a fun toy, not a precision scale model True and agreed, but IMHO the "slack" seemed a bit excessive between the movement of the first and second axle in the last clip from Promobricks Do you know if this steering system was used in any other official set before the 43034? Yah, it is seen in 8295 and 42022 to name a few, Quote
Conor Hyland Posted February 11, 2015 Posted February 11, 2015 (edited) In the last YouTube clip it seems that the second axle returns to centre befoe the first starts to move. Hopefully its something we can easily MOD If you look at the video from where I have it queued, you will see that he is not using HOG to steer it at all - he is using the far wheel / tyre from the second axle. When he steers it this way much more slack and lag will appear in the linkages (due to the stackup of tolerances and play in the linkages). If he used the HOG like he should, the steering movement will work great. Just watch one of the videos where he shows the steering using HOG and it works well. Using HOG method the tolerances and play in the linkages are still there, the play just happens together at the same time for both axles, instead of play build up between the back axle to the steering pivot and again from the steering pivot up to the front axle (thus producing the premature movement on the second axle, or the horrible lag effect on the front axle - whatever way you want to view it). There is nothing wrong with the steering, just the way he is (ab)using it. Also, I hate the way he has the jib pushed sideways at an angle, so he can operate the valves. TLG, can I have that job next year?!! Edited February 11, 2015 by Conor Hyland Quote
MrPaulo23 Posted February 12, 2015 Posted February 12, 2015 I don't care if it's steering is crappy or not, I'll still buy it, it's not a diecast set go improve it, I had twin unimog 8110s but it didn't bothered me of the steering because it's a toy set and I'm the only one playing them not my little devil cousins who I enjoy teasing with my Lego sets. Quote
MrPaulo23 Posted February 12, 2015 Posted February 12, 2015 (edited) All I'm after for this set are the basic details as already been shown, dually setup, a straight six dummy engine, and the differentials for the rear wheels. Edited February 12, 2015 by MrPaulo23 Quote
XAxles Posted February 12, 2015 Posted February 12, 2015 Also I'm so so so excited to see the Ferrari F40, the next LEGO Creator Expert set rumored for this July (VIP members). I love the VW T1 Camper Van and I love the Mini Cooper. I hope TLG is working very hard on the Ferrari F40 :) Hey, I had that thought too. My thread on the UCS F40 is over here, though it needs a few more blokes to keep the topic from getting too icy. Now back to this set. Quote
Nalyd997 Posted February 12, 2015 Posted February 12, 2015 Probably already been mentioned, but what motor does it use? Quote
Siegfried Meyer Posted February 12, 2015 Posted February 12, 2015 Seems like my feelings about the steering is the same about as the rest how they need a straight six dummy engine.. Probably already been mentioned, but what motor does it use? It has the L motor which is mounted between the turntable and above the second axle If you look at the video from where I have it queued,There is nothing wrong with the steering, just the way he is (ab)using it. Also, I hate the way he has the jib pushed sideways at an angle, so he can operate the valves. Missed that in the video thanks for pointing this out. Quote
Foggy Posted February 12, 2015 Posted February 12, 2015 From the 1st video i ;)saw, that steering system captur my attention for how bad it works... Anyway we can Fix it ;) Quote
Tamas Juhasz Posted February 12, 2015 Posted February 12, 2015 (edited) If you look at the video from where I have it queued, you will see that he is not using HOG to steer it at all - he is using the far wheel / tyre from the second axle. When he steers it this way much more slack and lag will appear in the linkages (due to the stackup of tolerances and play in the linkages). If he used the HOG like he should, the steering movement will work great. Just watch one of the videos where he shows the steering using HOG and it works well. Agree. This is, why it seems to be less precise. I built some steering with linkages, and even the most rigid and well designed constructions have more slack than rack and pinion. The reason is in the geometry: you use a steering liftarm to push/pull the links, and in most cases it rotates only 60-90 degrees. With gearing it's so less rotation that small backlashes between gears (and steering hub section) cause much more backlash in total (in the wheel). We can make a mod with a bit better linkages, but not much. In reality, there is a rigid metal construction everywhere around the steering. They have practically no backlash. In Lego, everything can deform and has a little play, slack. They add up and cause the final result. Edited February 12, 2015 by Mbmc Quote
nicjasno Posted February 12, 2015 Posted February 12, 2015 We'll see once we can have the set on our desks, won't we? Quote
Ondra Posted February 12, 2015 Posted February 12, 2015 If its not bad as in unimog, Im ok with every kind of steering mechanism even it have some small flaws. Quote
allanp Posted February 12, 2015 Posted February 12, 2015 One thing I really liked about 8880 and 8865 steering arms was that they they had long steering arms (which reduces the effect of slop in the system) with built in ackermann geometry which made much better steering. Quote
Osuharding1 Posted February 12, 2015 Posted February 12, 2015 Looks like the USA price will be $229.99 according to PR Newswire Quote
DrJB Posted February 12, 2015 Posted February 12, 2015 Looks like the USA price will be $229.99 according to PR Newswire Less than the Volvo Wheel Loader? This is indeed Good News! I always felt the Volvo was overpriced. Quote
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