MangaNOID

I feel like I have done that in the last two MOC's which is good to do you are right you learn the limits of the media, but I need success on a build sometime soon! I am, just because someone needs to come last Tha'ts the only positive I see in this is creative expression you mean to try and fix this up? no way man. I'm ripping it apart right now having a think about it the only way I see to motorise is to have a motor in each leg for the steering to limit backlash, and another motor in each wheel hub for drive. the only problem with that is steering angle and scrub radius type of thing if that is the right terminology as the wheels are so far apart from each other (left to right) that a large difference of steering angle is needed when turning (ackerman stuff). it can be done through many gears with central drive like I was trying before, but then you get into backlash again over so much distance and sets of gears... Oh! I am learning from these failures quite a bit actually

Marsupial: failed I have entered TC16 but only in the spirit of contest. Last is better than withdraw. -there is way too much backlash/windup through the steering and it does not work. -the backlash creates loose steering at the wheels so this can wander when moving it. -the pneumatics are not strong enough for the weight of the vehicle so when the steering wanders the legs collapse with the direction of the wheels. Linear actuators could fix this as they are more rigid than pneumatics but I do not have enough of them to try. -worm gears on the small turntables at the wheel could prevent wandering by tightening up the wheels. -the legs are far to unstable in the lateral position and one small rock or LEGO brick can twist them backwards out of alignment. In the video I did everything manually as it just was not working. I do not try to hide the failure of this model so the video is not great. at least i kept quiet when filming instead of swearing and laughing at it. hopefully one day I can build something that is not beyond my capabilities The concept remains interesting and I may dabble with this near future on a smaller version...maybe

6: Marsupial Its only with the spirit of contest that I enter this here and not withdraw. it is a failure. Time, different parts and a start all over could fix the problems but this is probably best kept to the realms of science fiction and not to be built in reality. My imagination got way ahead of my ability and reality. it is supposed to be a heavy transport vehicle like no other. Well it is like no other no doubt. more information on the failures here

Thanks guys, almost ‘finished’. I know how to improve this but no parts or time. It certainly presents some challenging mechanical issues in LEGO (that I haven’t really overcome properly) but maybe it’s just a stupid crazy idea that only belongs in a sci-fi world the only other thing I found close to this in real world is a straddle carrier on the docks. https://en.m.wikipedia.org/wiki/Straddle_carrier#/media/File%3AStraddle_carrier_from_Port_of_Chittagong_(05).JPG

Sad for TC16 but good luck for ideas submission.

OK its getting close now with manual functions but I still haven't lifted anything with it or properly got the HOG setup. but at least the Marsupial has a face. still a few days to go. we shall see.

just to confirm the contest deadline is midnight of Monday 5th? I should just scrape in with a very poor production video

Its nice to see builds that have taken such a long time. I get really impressed by this. Build quality, dedication. Everything just looks solid and well thought. Zero flex when showing the suspension compress, Firm doors that don’t seem to wobble all over the place …and that Chassis shot!

Thanks for the nod of confidence but at the moment looks is the least of my concern I have just ripped out all power functions to see if it can be manually operated with success. Torque steer type of thing was the worst of it. Not sure there is time to reinvent the hubs for a worm drive to turn the wheels to then ‘lock’ the wheels in place when not turning, but without the PF it’s probably not worth that thought now.

great prizes! not many entries yet either...

Nice work here. small, compact, functions, looks great!

the more I build the worse it gets. 4 legs are on. steering didn't work so I had to get rid of the worm gears. diffs in the wheels doesn't really help as I still have to drive it on gravel...at least Mars is full of that. the pneumatics didn't lift it up so I had to re locate them to attach to the body. Its looking very complicated to operate. Its getting uglier and uglier. so just a typical MangaNOID build really.

ha! well if it fails, yes, a Koala, but I am hoping it will be more like a strong Wombat.

Name change. one corner finished. Just waiting for some perpendicular gear connectors (9 on each axle!) and 3 small turntables to finish the other corners. Vertical movement is ~16 studs. having doubts it will work when finished but remain hopeful.

That's awesome! stickers for structural integrity! I would have given up thinking it couldn't be done. This is a great build. not sure how everyone builds so quick. That's why I have a snail in my avatar pic. If only there were more official space/sci-fi sets like this. I don't think you need it, but good luck for TC16!

That’s a awesome write up but a post like that needs some images in it. I really want to see this so please get some photos up. Not many will follow links to builds.

I guess the yellow stays, thanks for the input. I won’t change the name to IKEA delivery service though as much as I love Sweden (my partner is Swedish too). name change coming up for more fun sounding name. The most challenging part of this build has finished. The lifting mechanism/clamp. Took me an embarrassingly long time to work out but it works quite well and can, so far, in testing hold 2.5kg which is a tiny bit more than this will weigh in itself. Very happy with that as I wanted this to work well and not just look...ugly The two Mini LA’s that control the clamps are operated by either of the orange warning lights bricks. I’m very happy with this setup. The next two photos are kind of upside down as the cargo is of course carried underneath. all the weight carried is taken by the 4 bent 5x3 liftarms. A flat undercarriage for the cargo to but up against. Containers of cargo can be longer than the main body of this thing (about 46 studs) And 15 wide by 15 high, although I will not have enough LEGO to build a container

I wanted a brutal sci-fi look... I think its gone beyond Brutal! It should all come together when the axles and wheels are on I hope. I had a few hours last night to mount the motors and battery box. No excuses this thing is big so should be easy to fit in. M motor for steering, M motor for the pneumatic pumps, XL motor for the drive with a neutral switch so it can roll when lowering or lifting the chassis if need be. LA’s are for the control cab (yet to be built) to be raised or lowered. Maybe too much yellow going on, not sure yet until the end. next I will have to work on the lifting/grab mechanism.

looks awesome! almost acts like one of those Boston dynamics automatons As a competitor in the heavy transport operations, I have some work to do.

not that i'll be entering, but the IDEAS competition closes before TC16 so submit your TC16 after IDEAS closes and everything should be ok... As much as i would like to make the top 8, I hope so too.

I just started watching MARS on netflix and I can see where some of the inspiration comes from for this. looking really good!

Not much TC action posted lately... so here is my steering gearbox. I put the operating levers sideways to make the visual aspect more appealing...?Steering modes are selected this way for each wheel. Wheels are used to look like cooling vents or something. Steering and drive will now be RC due to lack of parts.

cant believe you get away with that on the drive! I tried to incorporate the original drive too but the vertical axle bent about 5mm or so each direction as they were not secured at the top...just like a flag waving in the wind!. maybe because my L motors were not geared down before going through the perpendicular setups... I ended up with this below. In there buried deep are the perpendicular gear holders! haha must of been my lack of building skill.

well its a crawler crane so slow is ok! I got inspiration off youtube for my claw too. its really a good solution. would love to see any pics of how your coaxial drive is braced etc (upper chassis) as I had to brace everything sooooo much in the upper chassis to make it work. although that could have been my inept building skill. anyway have fun 42042 is still a great set. and I think you made it so much better again. although I still do not like the cabin but that's just aesthetics.

fantastic! never too late. I did this mod a couple years ago and I think our claws are very similar in function/design however I made my 42042 with 8 motors remote control...but I love how you still have the one motor and the playable gearbox with the claw mod and independent track drive (through a coaxial?) you have inspired me to remake mine with manual sticks and gearbox.