MP LEGO Technic creations

Lovely!

Thank you! I'm glad you think so! Anyway there's something I haven't thought about before - the pump placement, there just doesn't seem to be the right one...

Yep, it's planned to be fully working (it's already now if you don't mind loosing most of the harvest during its way into the bunker - still missing some working parts ).

So, after a very long time, I've made some worth-to-share progress. When going from the front, these are the most important changes (among the bodywork): Pneumatic cylinders for lifting the front unit changed to small LAs operated by a PU L motor hidden in the front part (just underneath the cabin) Front wheel steering is done by a small angular motor (from SPIKE Essentials, BL id here) I've got rid of the train hub next to the cabin and replaced it with a standard C+ smart hub located behind the cabin (very easy replace of the batteries) Placed a pair of LED lights at the front (as well as at the back) Cleaning sections have finally been built! (rubber-band-driven) The elevator belt and areas around have been changed a lot, the belt now runs very smoothly (very satisfied with this), while it still can carry 1x1 round bricks towards the bunker Quite an effective unloading system There's much more of course, however as the last update was almost a year ago, I've already forgotten what's new and what isn't Anyway, thanks for reading, hopefully the next update will be sooner. And of course a shot from underneath

A quick progress here. I made someting that could be called "a cabin", although from some reason I'm not very satisfied with some parts of it. All pneumatic switches (6) have been placed inside, I also decided to change the colour of the fenders from black do DBG, as I think it looks better. Apart from that, I've slightly changed the design of front and rear lights and made the connection between the bodywork and support legs stronger.

@Jim I wonder, whether rear view mirrors should count into the model's volume, because those are usually the widest part of it and unnecessarily make the vehicle wider while it isn't.

Thanks @1gor, @trekman and @Jurss, I'm glad you like it! @Jundis, you're right. Pneumatic lifting would've need 2 more cylinders and it was not easy to place pneumatic hoses even for the tilting ones. (So cylinders would fit, hoses probably would't). Anyway, I'm pleased you like it already.

Hello everyone! For this contest I've decided to build a compact backhoe grader inspired by this one: List of planned functions: 1) Articulated steering with a working steering wheel 2) Pendular rear suspension 3) Worm-gear-operated front bucket lifting 4) Pneumatically tilted front bucket - via 2 small pneumatic cylinders, linkage holds the bucket in the same position during lifting 5) Pneumatic rear support legs - via 2 thick short cylinders 6) Rotating rear arm - 2 small pneumatic cylinders 7) 3 small pneumatic cylinders on the rear arm I know that it might seem to be too much but I'll try to do my best when implementing those - the toughest problem is of course going to be space, so I decided to make the cabin smaller than the original has. Now about what's already been done: Articulated steering is provided by a small turntable, axle for the steering wheel has also been placed. Pendular rear suspension works already too (2 rubber 2x1 liftarms) but because of the lack of any stoppers, it can collide with the rear outriggers' support easily Front arm and the linkage are fully working, altouhg it's not connected to any sort of mump neither a switch, as well as the support legs and the rotating base of the rear arm. Now a few pictures from the building process: Thank you all for visiting & comments are welcome!

It was quite surprising to me when I saw them saying about freely moving part of the pressure wing - "this is advanced engineering"

Polybag contest sounds interesting but why don't set the maximum piece count to equal 100?

I totally agree. One of them looks definitely bigger than the other one and the larger gear seems to fit in space of 3x3 studs, so it can't be a 24-tooth gear while it has similar side profile to the 16 tooth gear, so those can't be 12-20 gears... But then, why would TLG make new gears just for this case? In my opinion it'd surely work with other combinations of existing gears. Maybe those gears are important for some other and larger set (like the new UCS supercar's gearbox and so on). Of course I might be completely wrong because of perspective

If I can see well, there are even 2 green 5x7 frames - one for the roof and the second one between the front wheels!

I think it looks quite good as the real car has quite difficult shape to replicate, but there are a few spaces which I don't like that much. The first one that caught my eyes was the rear diffuser - it somehow seems that it doesn't below to the car while is a bit flat. The other one is the bonnet - for me it looks strange when the curved shape of the 3x13 panels suddenly becomes flat as it goes towards the front (but I'm not that sure it'd look better if it was completely flat). I can clearly see the rear wheelarches very similar to @Jeroen Ottens DB11, but hey, everyone needs some inspiration here and there... Otherwise the car is nicely shaped (I like the front part the most). I'm even fine with the sensor sticking out of the back, because it's EV3 and the performance of robotic functions is also important then. However, I don't consider myself a good car builder (I'm always stuck with the bodywork), so please don't be disappointed when reading this, I definitely don't want to discourage anyone. Keep having fun with LEGO! Best regards EDIT: I've just noticed custom stickers, which also look well, especially on brake calipers

If I use an XL motor for driving one axle and L motor for another one with the same gearing and wheel size, both connected to the same hub, it shouldn't cause any issues, should it?

It can be seen here: And there:

I wonder whether they'll arrive and if so, when...

Tried to fix it. Is it OK now?

I know, that's not the best edit ever but still it's at least a collage of those cars above made to the shape of @IA creations's sketch I looked at the drawing several times and I must say, that the axles seem to be quite too far from each other, but again it's just an imagination how it could be, not the final car. Wish you good luck in capturing those streamlined curves

Somehow reminds me these Anyway, nice progress so far!

That's the contest I'd like to join!

@Andman This problem was already solved (I tried loose motors, not connected to anything), but now there's an issue with calibration, because of some gear reductions (please see my previous post).

@Rebel_Lego Oh, you're right. Even though, there's a problem. The rear axles use worm-gear-operated gear racks, which is, at the end, quite a big reduction (to handle the model's weight) and calibration process still thinks, that it isn't at the end yet, which almost caused planetary gear reduction damage (tries to stop it manually ended up with some minor injuries ;-). I'm definitely impatient enough to calibrate (four different motors) even when switching from "programming mode" to the "controlling mode". Articulated steering uses 2 small LA, which also don't affect the calibration process at all. However, nice to know, how the steering blocks actually work

@Andman I have just tried yout solution and here's my experience with it. I looked to your photo and carefully recreated the same program in my app, but even there's no mistake, it can't work as described. After some tries I realized that evyrything works well, except "the steering blocks" (that's why I don't use them at all). Then I switched the "steering blocks" to the speed control ones and everything is OK, now it can control the speed of both motors (and it works same as my own idea, but seems to be easier). In conclusion, I really don't know what's wrong with the "steering blocks", they ignore slides and joysticks, as well as the stop button. The motors just rotate and can't be stopped ;-) Anyway, thanks to your suggestion, which at least simplifies my own one.

And let's not forget the Maus

Hi everyone. It has been a while since the last update of this project has been posted and some things have changed. I decided to not to build the Panther 2 (I'm sorry) but the larger one, the Tiger 6s, which in conclusion means adding an extra axle and reworking some parts of the machine. Current features: Drive by 3 C+ XL motors (1 per axle) Front wheels steering by 1 Spike Prime medium angular motor Articulated steering uses the C+ L motor Each of rear axles steered by C+ large angular motor (no.15), 2nd axle connected to the "pedestrian safety mechanism" (I don't know how to say it better) Pendular rear axles "Harvesting" motor already placed, but connected only to the front belt (between front wheels) Some moving details in the interior In total, there are 8 motors now (next 5 or 6 are about to come ;-) and 3 hubs (2 C+ smart hubs and one train hub, one C+ hub will be added) Some photos (sorry for quality): Here's how the medium angular motor's mounted. The train hub is hidden, but the box is still bigger than the original one. And finally, the biggest problem faced so far - the Powered up app (which isn't even supported on my phone now). The problem is that when the machine is in the "all wheel steering mode", both rear axles turn in different angles (as well as in every vehicle with more than 1 steered axles), but when the vehicle is in the "crab mode" the rear axles turn same. Bacause I'm not very good at programming, the best solution that came to my mind was to limit the speed of one motor when "all wheel steering" is engaged. The downside of this solution is that you have to return the wheels to the middle before changing a steering mode Could someone with more knowledge about the Powered up app help? Thank you all for visiting & comments are welcome.