kristl

I believe you are looking for these: https://designer-han.sellfy.store/p/8258-twin-wheel-package

A medium-scale RC backhoe with a LA front loader and a pneumatic auto compressor backhoe would be incredibly playable. It would be even better with Zetros wheels on the rear axle, ensuring it stays in scale with the Arocs-sized trucks we've all acquired over the years. 2WD would be perfectly acceptable, and I could do without a multifunction front bucket, side shift, and backhoe dipper extension. Including forks behind the bucket, as some manufacturers do, would be a practical addition. do

Hi Steph, I would like to try and build your Volvo FH crane truck truck aswell. I have gone through the topic and saw you had the file posted at one time, but the links do not exist anymore. Any chance you would send me the LDD file like you did to some of the other members? Regards, Kristjan P.S. I have send you my email in PM.

Looks good, but how is the bucket tilt working? Is it manual, relying on friction pins?

This contest theme is a brilliant idea I am surprised it hasn't been done before. It's great you decided to remaster this set, I have very fond memories of it and I almost feel sorry for selling it but I did get a 8455 instead.... Well, back to the topic, function wise I think you could safely add a pendular front axle to enhance it a bit, otherwise it seems like your off to good start so far.

I've been looking at that crane a while ago, but couldn't find instructions so I let it go. If you manage to build it in Studi.io I would be happy to add it to my building queue.

Impressive, it deserves to be fronpaged. It really is a piece of work, and on top of everything the presention with different tire types is something rarely seen, most likely inspired by the Spintires game (which I am also a fan of myself) just like the vehicle itself. The hardtop-open top conversion, bull guard, roof rack and snorkel are also great mods, it is obvious you did a lot of planning and designing to get to this stage.

8455: Back-Hoe - Theme: TechnicYear: 2003 Image Errors: No hoses Missing one rear light LDR File Studio File P.S. Thanks to @EdmanZA for contribuing the SR3D File which it was possible to convert to Studio .io format. You can view his post here.

I think designers should focus on the blade and makesure it has the freedom of momevement of the real machine. With that what I mean is it should have blade elevation control, tilt, rotation and not just simplified up and down elevation and also the same for the ripper or maybe alternative rear attachment such as grapple for instance.

Looks the part, maybe enlarge the rear (trunk) window by removing macaroni pieces as, by the blueprints you presented, the rear window is square-ish in shape so I don't see the need for round corners. All in all, excellent work in improving it from the first draft.

I believe 8455 does not have the necesary reach to fill for example Arocs high dump bed (I have the 8455 assembled but I don't have Arocs to test). Although 8455 is wide enough for scale, it think it should be made taller. Also when we mention MOC's of backhoe we should not forget to mention the Jurgens bachoe, which I have built and compared to some others backhoe MOC's it is very functional and playable. Also it is probably the only one that comes with instructions. So my vote goes to a backhoe with CLASS rear tyres and new front tractor tires.

I agree. I don't think many AFOL's understand or value enough how challenging it is to design a funtional backhoe with proper functions (not even counting sideshift, boom extension and alike) out of Lego. I mean we even only had a handfull of tractors, even they struggling to fit all the components in the narrow nose and space limited rear end because half of it's width is occupied by beffy rear wheels.The 8455 was a masterpiece at it's time but it's drawbacks were at least a lot of pumping and poor steering design. With today parts it could be done better (maybe a compressor on board in case of pneumatics or LA's with a distribution gearbox and accesible controls on the machine) and a bit bigger to fit 1:17 trucks like Arocs. Or go even bigger scale and full RC but I think that would blow the price trough the roof.

Hi, it is not hard to fit 8258 crane's last section (which gives you winch and extension) to 8436 crane (I have done ot myself) but 8436 crane was designed with shorter rams, so the challenge here is to fit the newer V2 rams, but that might even be more time consuming than starting from scratch. For me the main issue with your current design is that when folded it is wider than the trailer which in reality is rarely the case.

Hi, the crane seems a bit too massive and wide, you could look the 8436 set which has the pneumatic crane and just redo the last section to add a winch. Otherwise very impessive build!

You haven't posted in this topic for a while, any progress on the truck?

I think the train remote makes it drive much more realistic, because you need to move slow when you are aproaching a dump truck for instance, or backing up. And the play value is great, it's quite capable loading bricks or beans.

I also build this MOC and it's great. I think it's the best backhoe ever designed with Lego, because despite it's size and weight it's still functions very well. This one from Pippasseyoyo might be better looking but the front loader doesn't reach high enough and the backhoe is not supported enough beacuse of the sideway mechanism which is a nice feature but it is hard to make it strong with Lego. ( ). The two things that Blakbird mentioned about the front loader and rear backhoe not reaching the ground can be fixed by sacrifising some lifting height of the front loader and bachoe. The problem is the weight and the soft PP wheels, which means the whole machine leans to the back and is approximately two studs lower at the back. If the tires could support the weight without being compressed the front loader would reach the ground.

@ApeFight From what you wrote it sounds like you should't even build the offical models because they were designed by Lego and not by you... I can't help to wonder where a man would get the skills to build MOC-s if we would never learn from building something from somebody else..

@Traktor It's not a modification, take a closer view, both models are designed from scratch, the reason the tow trucks cabin in almost the same as the offical one's is because it's a really good design from Lego and it doesn't need improving. @Efferman I've paid 10 Euros before for Jurgen's backhoe, in my opinion your models are just as complex and for those who think that 10 Euros is too much should know that 10 Euros is pocket change compared to the cost of the Lego parts for such a model. And as said before, the instructions are huge investment of time and require a certain compensation.

You should move the brushes forward.

Don't forget that the arm has to have two functions, one to load or unload the skip and the second to act as dumper where it must lift the skip to about 45 degress angle. Look here for inspiration: http://www.genuinemodels.com/hooklift.htm

Thanks, I like pneumatics too, but one has to be careful when routing the hoses so they don't rub on moving parts like gears, etc. Thanks man And you are totally correct about the trailer. I will be building it to tow my 8455 with onboard compressor. I'm glad you like the truck. Well, actually there was enough space in the chassis, but everything had to be positioned in front of the rear axles, because the dump bed cylinders take all the available space between the rear wheels.

Looks like you're trying to motorize the 8264.

Hi everyone, this is my first MOC to be posted here. It is my version of the 8258 crane truck. My version has one axle less, but has a pneumatic knuckle boom crane instead of mechanical, pneumatic outriggers and dump bed. You will recognize the cabin, as it is mostly the same as in 8258 but it is modified to house the battery box. The front part of the truck houses M motor for steering and an XL motor for driving. The IR receiver is mounted on the roof of the cabin. Behind the cabin is the crane itself. The crane is basically the one from the 8436 with the 2nd section of the boom taken from the 8258 so it can extend and has a rope with a hook. The crane is pneumatic, with the air coming from the onboard compressor. For crane operation the operater uses two pneumatic valves, a gearbox and a power switch. The valves obviously control the two rams inside the boom. The gerabox has two functions. One function is for the crane rotation, where, depending on the power switch position, the crane rotates left or right. The second function is the compressor which powers all the remaining functions of the truck. Besides the crane there is also a pneumatic dump bed. Hope you like it

Yeah, it is kind of slow for a two pump compressor, my present solution moves pistons a lot faster: It fits right where the differential should be and the motor serves as a bit of counterweight instead of the fake piston engine. LXF file download: File