MangaNOID

Hope you can re-link the photos here. Its a beauty! (I followed the Lego car blog link)

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Super nice build! you captured the original very nicely

I was following the results all week because I was excited to be consistently coming 3rd by a couple of points. But then on Sunday, literally the last voter bumped me out to 4th! So hands up who was that last voter on Sunday?…😅 Anyway of course well done to winners and to be honest I’m surprised my quirky build did so well. Thanks for another TC where I’m pushed to finish something 👍

I like seeing builds that replicate real life but seeing creativity of one’s own design is much better IMO. Especially so because there is so much replication at the moment. A breath of fresh air that it got frontpage featured too without being a replica of something (technic does seem to suffer from this for some reason, look at the technic lineup on LEGO.com, which might be a whole subject by itself…)

Perfect situation for this application! Thanks for sharing. This will come in very useful with in-situ tweaking

This is very cool! I love the bendy tracks, it’s a neat technical design that works real well! (I was skeptical until I saw the video 😅)

But it is adorable! All your builds just look so neat! The tracks with the green wheels on the T-Rex you built inspired me to join this contest as they looked just too good so hope it gets finished.

Thanks for nice comments people ☺️ There is no beauty without some strangeness to its proportions….right 😇 Here is a quick hastily shot video of the functions as time is of the essence. They look real slow in the video which I hadn’t noticed in real life playing with it. super happy with the steering not so happy about only having the old heavy battery box that doesn’t last long.

BullDozer Small ‘retro’ ‘vintage’ ‘steampunk’ inspired style bulldozer Functions/features -Power Functions M motor -Forwards, backwards -Steering with ‘brake’ steering -Fake 4cyl engine -Blade tilt, lift and angle. -Rear Ripper -Two powered pneumatic pumps to power pneumatic functions All controlled via levers in realistic position

Just scraping in on time as Im out of it. Short video coming soon of operating.

After re-reading what I wrote I apologise to @Zerobricks for my above comment as it may come across as a bit mean to your entry which was not my intent at all super cars permeate LEGO everywhere so I saw a funny side to the supercar in a tracked vehicle contest but now realise that it may have negative impact on this topic so would like to rectify that as much as possible with this apology. As I did say before and I’ll repeat that, as always, your build is looking very good

A supercar in a tracked vehicle contest Nicely done... It is looking very nice though

Nicely replicated , this will be a big beast!

I had this steering column at first which with the half stud offset near the top was perfect to fit in the bulldozer but of course the tan 4L axels are not held in place so I spent a little while coming up with the grey version which is much better built. Just not as aesthetically pleasing Below was my fist engine attempt but it didn’t work well with power going through the fake engine to the pneumatic pumps at 1:1 So I changed that to this gear setup and flipped the m motor upside down which now works well… although I haven’t tried pumping any pneumatic cylinders yet Squeezing everything in under my favourite olive green panels… it seems to be going well so far. Cut away view… Still lots of tweaking to do, finish the blade, test the pneumatics, maybe stretch the track length a bit or add a couple rollers as they are a little loose for my liking.

A 5.5 long axle would be held in place and only stick out a bit more and could be covered to make it look like a wheel hub. If it doesn’t stick out past the tracks it will look good ? Same for both sides?

Looks very accomplished! Nice way to get around the servo issue

First photo reminds me of 8851 B model bulldozer which I always had a soft spot for…(too young for a hard spot) as it was my first technic set. look forward to another dozer as not many dozer MOC’s in my memory.

Looks like a Datsun cherry! …Nice

I have fixed the steering problem! I changed the bulldozer to 9V power which slotted in perfectly to the under chassis I already had due to the ‘vintage’ high lift design in mind. Same brake steering method as before, but works so much better when the tracks are powered instead of pushed! Works great with the steering wheel instead of typical tank steering levers. Very playable Brake steering is located on the higher rotation axles before everything is slowed down and torqued up for the tracks. Forward and backwards direction will be controlled via some lever thing from drivers seat area direct to battery box switch. M motor crammed on top of fake 4 piston engine with vintage steampunk type of vibes pneumatic pumps hanging of either side. This will sit above the diff.

No, because Technic is too difficult to construct already and all us Technic builders are dumbasses and we need all the consistent colour coding we can to help us…bless them.

So brake steering is fail 🙁 I had this setup as braking for each side… Although the ‘brakes’ worked, there was two problems. 1- the tracks don’t supply enough grip on anything other than thick rug/carpet to stop one side turning whilst pushing 2- the small pumps in the tracks gave too much friction in the tracks to make the tracks turn freely enough to allow for the steering to work. So I either give up steering or maybe motorise with the gear steering but not much room and don’t want to be too ambitious and end up with nothing. worked on design layout a bit…

Big fan of this :)

So if I understand your way correctly then I think the inverted rotation is a problem from the ‘pushing the vehicle’ aspect? Here below is one of two ways I’m trying to ‘steer’ the tracks from just pushing the vehicle. This is a mock up (to test the idea) of what would be a proper gearbox if I had enough of the 12T and 20T clutch gears (in the post on their way to me) Both tracks are locked together by the gears, selectable by the wave selector between the clutches (there is one 12T and one 20T gear missing in this photo as the gears are not clutch gears of course) this will force one side of tracks to be faster/slower than the other (changeable by the wave selector) which forces the vehicle to turn left or right. The elastic bands are on there to test how it works on hard surfaces as I don’t have the little rubber gromets yet. Surprisingly this works OK. Not as good as proper tyre steering of course but happy enough for the tracks. The other steering method I will mock up and try on the weekend is a little different (brake steering) so cant wait to see how that goes plus it will use way less space than this gearbox which is a bit in the way. Its true but this will not be a replica of any real machine so I have design choices. Also I am trying to get steering to work which will be better with a wheel to turn (?) when pushing. It will also have many pneumatic levers so two less levers for steering will be better :)

Good old TC contest to make me build something. This Will hopefully be a retro, self styled (not copying real one) bulldozer and some styling I have in mind reminded me of an old cartoon character that shares a name with this topic name. Pneumatic functions and air tank will be fed by two small pumps driven by the tracks. some over all proportions I’m working to below -blade will have lift, tilt and turn -hopefully a rear ripper thingy -‘self filling’ air tank from pushing it around -some steering that I’m working on for the tracks to work from the steering wheel -fake engine, track ‘tensioners’ blah blah…