Appie

Took a while to do it, but I finished the Stud.io file for my PoweredUp modded 42209: https://www.dropbox.com/scl/fi/21n7a9za4qd1z113nrhur/42209-Complete.io?rlkey=v34usx3elijzz6bj532gskd3z&st=sznimknd&dl=0 The front is 95% identical to the set. Main difference is that I added my mod for the boom. The RC mod works with the original boom, but you will have to adjust bucket tilt and boom while going up and down like you would with the set. That's not an issue with the movement mod. I decided to have the file show some sub builds to make it easier to build it from just the file (since instructions might never happen ) and a completed model for reference besides it. Another thing for reference is the wiring, it's tightly packed, so I hope these photos help: The 2 wires closest to the wheel are the L-motor wires. One goes to the top of the hub and 1 at the bottom. And obviously the same for the M-motors: L-motor wires need to be tucked away like this to not touch any gears and then route them towards the rear under the L-motors and above the M-motors: The tile above the gears from the M-motors is to protect the wires Placing the wires like this will avoid them touching the tyres even when the pendular axle is tilted. Or you can just have them hang at the top over the hood (L-motors) at the rear as a quick method. Your call If anybody decides to build it: enjoy

Thanks all It's based on piece size, the bushes fit through a 1 stud space, the gold doesn't. The difference in size is minimal, so the machines required a very narrow operating window. The DBG cilinder machine (Mahj's) worked better than the white machine (mine). Both had a 100% succes rate of not getting gold in the pile of bushes on the side, but for my machine there were more bushes in the little (dark blue) retainer meant for only the gold at the end. Mahj's machine had like 1 bush in that gold retainer when it was full vs my 10-15 bushes in my gold retainer when it was full. Mahj tells me it's because this is my first version of this machine and he's on version 3 Either way, stuff to tackle for a new version

I could also make the blade from the undercarriage yellow, in fact I could make the whole undercarriage yellow instead of partial black. And instead of the yellow line I could make that whole upper part (above the yellow line) of the superstructure yellow as well, more in line with the bulldozer. While I kept the design of yellow at the tracks like the bulldozer, I went more with the design I used in my offroad dumptruck for dark blue as main colour, a yellow line and some white accents which I quite liked how it worked out for the superstructure of this excavator (imo of course). Both break away from the colour design of the bulldozer though, but I don't want to change the bulldozer to this colour design, nor change the dumptruck to the bulldozer's colour design The excavator is the hybrid between the two I guess and I can swing either way on it actually Keeping it as it is now or put more yellow in the undercarriage, blade and superstructure, either way looks pretty nice to me I think. No worries. It gives me a new perspective on the model, so thank you and Jundis. Thanks. I don't like what the 42215 is either, but I did actually read through the instructions of the 42215 for some ideas on how to tackle some things on this model (or how not to? ) Of course I also revisited the 8043 set, a.k.a. still the king of excavator sets (flex axles on the cabine are pretty much there as a tribute to that set and obviously because I thought it looked good ) and alot of excavator MOC's on the internet that already exist were very interesting to dissect. A sunbathing excavator for your viewing pleasure would be sufficient? Thank you very much for the compliment I also made a quick video (no sunbathing though) and just uploaded it to youtube, nothing fancy, just a little demo of what it can do. Enjoy I will also add it to the OP. I will play around with the suggestions made for the colours and arm in the next few days probably, so thanks again for the suggestions.

The bucket (this version) comes in yellow and DBG, between the two I thought this was the "more fun" colour, because yellow would return in the superstructure and undercarriage as well. The sprocket I have in yellow, black and white. The other parts of the undercarriage are available in different colours as well (the 3x19 frame) like black and DBG. Switching that up wouldn't be too hard. I chose yellow, because of the similarities to my earlier bulldozer, since the plan is to make this a group of vehicles. But that bulldozer has more white and dark blue is more an accent colour than on this excavator, so I can see how it is different for this one. I'll see what I can do to fix that third section of the arm.

I see @Jundis, thank you for the feedback. What DBG do you mean exactly, from the LA's, tracks or both? For the tracks I thought the undercarriage would be too much black with black tracks, but that choice was made before I even had a superstructure, so maybe I should revisit it again. As for the DBG of the LA's, I have black LA's which I didn't try actually, but those also have the DBG section and I think I like the LBG of the current LA's more on the model. I agree the third section looks a bit thin, I wasn't sure how to make it thicker and the dark blue section of the arm kind of disappears into the white in the second section (which I like) that I did not want to reintroduce that colour in the third section, perhaps I should look into making it thicker around the LA with just white, maybe on the underside of the stick as well?

Thank you very much @Jundis! I understand that the looks are a little different from a conventional look for this kind of excavator (usually they have a higher and shorter rear and the superstructure as a whole is shorter compared to the tracks). Earlier in the build I did consider the hub and motors in a upward position on the superstructure, but this layout I ended up using (especially for the motors) turned out better and this also worked better as a counterweight for the arm. It not being based on a real life excavator, gave me some freedom to build it like this, but no problem of course if you don't like how it looks. Something specific you don't like about the looks or just in general?

Thank you! I use a similar setup as the Pybricks program for the 42146 Liebherr crawler crane. The hub in the undercarriage of my excavator sends a signal to the hub in the superstructure to control those motors. I did slightly adjust the waits in the program to 40ms for the undercarriage hub and 10ms for the superstructure hub, because it felt like a real delay in my input with both at 50ms, which was mostly annoying when you want to stop a motor (and not have the LA click because it is at the end already). Maybe I can adjust those waits further or even the basic 50ms for the undercarriage and 0ms for the superstructure, but this works well as it is now. And yeah, I came across that topic about that turntable issue last week or so and thought this was what you experienced, which is why I immediately tried another turntable which hopefully would work properly, but alas, it was short lived. I have like 7-10 unused of these turntables, but only 2 unused are assembled as of now. I have had most/all for years and the few that are in other builds, aren't driven in this way with a 12T bevelgear (or driven at all even).

Thanks guys! Yeah it's good. For the arm: The main boom lift is on a 2x 12T:20T reduction (not sure if it is "needed", but figured it wouldn't hurt if I was able to), the second section is on a single 12T:20T reduction, the stick and bucket have no reduction in speed (both 1:1). Tracks are 12T:36T reduction, so it has adequate speed and good torque to move the model. The turntable is a tad slow (you can't keep the superstructure in the same spot while turning the undercarriage in its place like the 8043 set) with a wormgear to 20T and a 12T bevelgear to a 60T turntable. In the given space it was the only possible gear combination with a decent gear reduction for the turntable I think.

I wanted to make a excavator as small as I could with PoweredUp and 8 functions, this is the result (so far). It's not based on any real life model. It uses 2 Technic hubs with Pybricks. One hub in the undercarriage and one in the superstructure. The hub in the base does the following: Drive with 2x L-motor (motors inside the tracks based on this design from crazy technic) M-motor for turning the superstructure M-motor for blade lift The hub in the superstructure has the following motors: 1 L-motor to lift the base of the arm 1 L-motor for the two-piece boom lift 1 L-motor for the stick (hidden in the first part of the arm) 1 L-motor for the bucket (M-motor would have been sufficient, but the wire is shorter of a M-motor, which would make it to the hub barely, this L-motor is in the second part of the arm) A little video with a basic demonstration of the functions: A few more pictures Interior can house a Technic fig. Easy access for a battery swap for the hub in the superstructure (on/off button is reachable from below, I might make a little mechanism at some point, but so far I like being able to just use my indexfinger to turn on the hubs). A deeper look below the bodywork: A few shots of the arm positions: Folded Maximum height All LA's at maximum extension results in a bucket being level to the ground Maximum reach Ideally it would reach the ground in this case, but 7 studs from the floor was the best compromise I think with how the boom stands when upright. In order to reach the ground I only need to turn in the "two-piece boom" LA about 0.5 studs in this case. The blade sadly is unable to lift the model. It's a wormgear on a 8T gear. Maybe it would be able to if I replace the M-motor with a L-motor. I am currently considering it, since it would fit in the undercarriage, but where the extra wire length of the L-motor was a boon for the motor in the arm, it might be too much to cram in the undercarriage. At one point I had a mini-LA in the undercarriage for the blade, but I wasn't satified with the kinematics of the blade and the general look of the attachment point of the LA. That mini-LA mounting point would have been about 2 studs above the desired (current) height of the blade. Here's an image of an earlier version of the undercarriage with the mini-LA: It was too far forward to be ideally functional, but I had very limited options to move it further back, wires (from one of the L-motors that handled drive) were in the way and/or I was sacrificing structural integrity, both not what I wanted. Rear view of the underside: In the final version the wires near the end of the the undercarriage are secured below some bars I inserted into some half pins. As you can see near the turntable I placed a bar accross the entire width of the hub so it wouldn't ever get caught on the turntable. Besides the thing with the blade, there's another issue I still want to tackle. If the arm is at "maximum reach" and I turn the superstructure 180 degrees (facing backwards), the 12T bevelgear on the turntable will skip. This is pretty much the only scenario in which it does this since I moved the whole superstructure backwards 1 stud (it would do it any position of the arm before at times). I am considering a few options to fix this like the good old, but still in production (at least until 2021) Lego weight bricks or perhaps add another kind of support (like a wheel) bel;ow the superstructure that can run over a closed off front and rear of the undercarriage (in which case I will need a mechanism to turn on the hubs). There's also another little issue with the turntable, which wobbles a little in certain spots of turning. It would even do this without a superstructure on top. Swirling the turntable a bit in hand and then putting it back would make it go away for a while, but it's not a permanent fix. Funny enough I found this problem with another turntable before I even started working on a superstructure and replaced it for this one which didn't have the problem, at first at least Maybe a slightly better balance with the rear would help with this problem as well, but adding those weight bricks for example would mean adjusting the body work and I like how it looks now A video will have to wait a bit as I want to brainstorm a bit more about these issues. I do consider these issues pretty minor though. The wobble I don't really mind. A buddy suggested teflon spray to tackle that, but since I am not really losing any cargo while it wobbles, it's not a big deal to me. The skipping 12T bevelgear for a maximum reach arm turning to the rear of the model is a pretty niche situation I think (would an operator of an excavator normally even do this except for fun?), but I never like a skipping gear so I would avoid that scenario if I can't fix it. The blade not being able to lift also annoys me a little. It's still doing what I wanted it to do: act as a bulldozer in time of need, but still. The blade isn't even needed to prevent the model from falling over, but I still think it should be able to lift the model, but I can't think of a solution in the given space and desired blade kinematics besides slapping in a L-motor and hoping it does have enough power to move it. As always, thanks for reading and looking at my pictures

Looks very nice! Nailed the look of a little Defender. I also like how you did the little incline of the roof.

Heh, didn't even notice this when I saw it at the event, but now that it's mentioned, I can't unsee it, maybe this opens up options as well to add a big LA and fix that bucket tilt annoyance? It's obviously still an awesome wheel loader as it is of course, no doubt

Simple but very effective and very good looking. Imitation is supposedly the biggest flattery and I stole quite a few ideas from this truck for my own truck It was a joy to see it live in action

That's nice little chassis and I am sure it's a blast with these third party motors One thing for the front axle you might want to consider is to add a 9L liftarm at the bottom of the steering liftarm or even better at the bottom of the "hubs" (though would probably collide with the gears and would cost ground clearance). The wheels get a little bit of negative camber with the current construction when sat on the ground. You can leave it as it is since it is nothing major, but if it annoys you, that would help it a little (not completely).

Thank you very much guys, glad to hear you guys like it.

Thanks guys for the compliments! Yup, the City polar truck which also uses these tyres with that fender is what made me want try to use these. This one, stole the idea from one of Mahjqa's trucks

It's not a scale model of a real life model, though @nico71 mentioned it looked like a Kraz in the comments of Mahjqa's video and I do see the resemblance. It features the following functions: Drive with a L-motor to the rear axles (no AWD). Steered front axle with a L-motor. M-motor for dumping the load with a LA. All axles have pendular suspension with the front axles using actual springs and and at the rear the 2L rubber liftarms to "dampen" the pendular axles a little bit (idea stolen from this MOC/WIP from Jundis). Movement of these rubbers is limited to prevent tyres rubbing the chassis when an axle is tilted. Working headlights Self locking tailgate from @ludov (I don't know if he came up with it, but I did steal it from him ) (center axle also has a thin white liftarm under the tyre at the rear) The self locking mechanism from Ludov works like this: LBG is the bed, yellow is the chassis and white is the lock. The bed is connected to the chassis at the end of the yellow connector and the lock can tilt 1 stud ahead of that which means that it drops further down than the bed would. Thanks for watching and reading. Hope you like it

@Repkovsky Thank you very much, that's great! I am not making promises about when I'll do it, but it's certainly alot closer with the studio file of the base model

Perhaps you can look into Mercedes' F1 "DAS" system for toe adjustment. It's basically a gearrack that can slide forward and backward to adjust the toe.

Looks stunning and with lots of technical features. Great job! It's shown I think on his flickr page: It's a nice idea, but if actually driving the model around and steering, the toe will be wherever the 4L axles that hold the connector with the ballpin decide to end at because of friction? Or is there some sort of "toe-lock" (in the final model) that I am not seeing in this image?

Thanks guys for the compliments! @jorgeopesi Honestly I forgot the similarities to the old Komatsu colours. I picked these colours because I liked how they look together and have plans for other equipment with the same colour combination. I guess Komatsu had similar ideas long, long ago @1gor I can see the Liebherr-ness of the colour scheme. It certainly was an inspiration, because I am quite fond of that yellow machine and often white roof (and cabin) combination.

I'd like to show my latest creation, a bulldozer with PoweredUp It's looks are inspired by this bulldozer from Komatsu, a D71: It has the following functions with a PoweredUp Technic hub: 1 L-motor for drive 1 L-motor for steering through a subtractor 1 M-motor for blade lift 1 Medium angular motor (from Spike) for the blade angle Belly shot. Subtractor design is from PawelCh. Technic fig compatible An attempt was made to give the impression of an engine below the engive cover Directly below these few plates is the M-motor and directly below that is the Medium angular motor. At the moment I made my Pybricks program give the blade 3 different kind of angles: all the way to the left, straight or all the way to the right. I could make smaller steps, but this seems sufficient at the moment. The edges on the blade going forwards is perhaps not normal for a dozer with a blade that can do angles, but since this will be running at an event later in the year mostly in a forward fashion, it's more useful. The very small angle of those tips of the blade and being almost parallel with the tracks when the whole blade is angled, should still give a desired result of Technic bushes (our "dirt" for the event) being moved to the side. The little wheels on the bottom of the blade are to protect the panels a bit from scratches and whatnot At the maximum extension of the LA's it can lift itself a little bit from the ground. At its highest point, the blade has 2 studs ground clearance. Not much, but it's the best that I could manage in the given space. Removing the batteries from the hub is pretty doable. The roof is attached to 1 black pin at the back. The 3L axles with stop and half yellow bush at the sides can be pulled out to remove the center part of the cabine easily. The cabine is only attached by 3 pins to the the rest of the body work: one pin below each door and 1 half pin at the rear. If there isn't a Technic fig in there, the power button is easily accessible through one of the windows/doors. Thanks for watching and I hope you like it. A video might take a while to make time for to make sorry.

In true "vote with your wallet" fashion, I bought 3 of this set. One to keep original (for a few months at least), one I made RC and the last one because I wanted the parts now!

Thank you both. Don't have time now to make instructions for it, maybe at the end of the year. A stud.io file might be done sooner. If somebody happens to have a stud.io file of the normal set, that might be a little quicker or it might not be actually. The rear is gutted to make it RC, so might be quicker to juist build a stud.io file from scratch, but the front is pretty much a copy-paste from the original.

@Jundis I didn't understand that choice either. Maybe they want to make it easier for young builders to install that minibuild? The set has more of those axle pins sticking out in places where a normal pin could have also been placed. @Paul B Technic Nice grabber claw mod. @efferman Works awesome! The beefed up bodywork looks great too!

Thanks everybody! It's a great little set as it is, but I love the options it gives to mod it. I hope we get more of this one in the future as well (and I really mean like this set for heavy machinery and not heavy machinery sets like the 42215, they can keep that 42215 set at a place where the sun doesn't shine imo).