1gor

Only thing that I can make smother is front hood to make it more like models on Scale modeling forum subgroup...but due to chassis construction which is oriented on front axle suspension traveling, I'll see what is possible, I don't know if this would be sturdy enough; I'll try after model is finished to tweak it a little bit, but I wanted to make Technic model....thanks for idea

Beautiful model of my favorite 911 Porsche. Very nice at such scale

problem with hitting frame was described in Jim's review (please read it) -it is all about one pin (if I'm not mistaken..). 42054 set looks disproportional with Unimog tires, but partly you're right - since utility tires on 3800 are 185cm in diameter it is the same tire scale as 42054 set 1:20...5000 VC has 215cm tires...only 3800 is smaller model. I understand that your model has more similarities with 3800 or 3300 series, but you can always use "Artists freedom" when recreating your models...

Perhaps you can find something useful here

Thanks for pleasant reply Front axle is now different - it has a steering mechanism something like Mercedes Arocs...perhaps you can see here... and a portal axle hubs are partly integrated into wheels (the reason that I use wheels from Black Cat - model team and not usual LEGO Technic 62.4 X 20...)

...a little progress...cab is finished and model features 4 cylinder engine like it should... Model is starting to look like Unimog, now the most complex part - gearbox needs to be updated... ...stairs are also finished...

It looks like some vehicle for Batman. Really cool Sadly no drive implemented so far, but other features are just great. Very very impressive.

One difference is that video is about 3800 - older model. so far I did not see Xerion 4000 / 4500 / 5000 with tires that have utility pattern...Remember there is a size difference between 3800 and 4000 / 4500 / 5000 models; 3800 use utility tires with 1855 mm overall diameter and with agriculture pattern 1955 or 2055 mm overall diameter, but 4000 / 4500 / 5000 use tires with (agriculture pattern) 2155 mm overall diameter...

That would be cool. Perhaps you can built a bit bigger version with Unimog Tires...and they fit red rims...

That would be BAJA 1000 ready

or until this post it looked like this (wheel spikes not the car) (The car is very nice)

This one looks like it is ready to be monster sponsored version, Very COOL!!! (I know quoting images is not the best thing, but I just want to show what I mean. I just ask for understanding this time.)

Small is indeed beautiful Very cleaver and simple staring solution. This tires look like Communal Version that uses so called utility pattern tires.

That is the nest strategy to solve sticker problem, just few things - need to find out which self-adhesive foil works good with LEGO parts and keep in mind that color should match as much as possible panels / parts on which it will be used. I has the same problem with Mercedes Benz logo, so I've ended cutting (additional) original Unimog U400 stickers (I've needed round sticker and not square one). I know that you have Baumax in Romania so perhaps ask there. I've bought relatively good foil in Bauhaus (in Croatia) which is basically the same company for some future projects because test prints looked very close match on LEGO part. Printed on HP Indigo digital press... Hope this could help you a bit. BTW very nice review of a car that should be F1 world championship car that should enable Montoya to clinch deserved title... Ups, now I realize topic is an older one, but perhaps my suggestion can help someone else... Sorry admins, my mistake

It.s OK, It could happen...

Nice progress

...and it is very nice that you noticed this topic (but video is locked)

little update ladies and gets... ...as you can see update is made on steering axle which has now very similar steering solution to LEGO Arocs to maximize space availability and precision. Future improvements will include a bit shorter (if I manage to make 2 - 3 studs shorter system that replaces two universal joints) or a bit longer wheelbase, disposal of two cylinders on engine (U423 model has 4 cylinder engine) and I'll replace tires and use 68.8 X 24 that are originally made for wheel 32004a to represent widest and biggest tire used on Unimog Implement Carrier BlueTec 6 - Michelin XZL 445/65 R22,5 or Mitas MPT-23 375/75 R22,5 (tires with approximately 120 cm overall diameter and street pattern) because I've realized that 62,4 tire on 32004a whell is deformed in the middle after some time; and to add wider mud guards to achieve 17 studs width to represent 2430 mm overall width (info from dealer is 2430mm, brochure says 2400mm)... so when I'll make final (optimized) chassis version I'll upload newer photos...and additional info... Any suggestions are welcome

...and it is smaller and lighter (look under weight) so you can make more balanced model with this battery box if battery box can not be centered on your MOC. When you add rechargeable batteries to other battery boxes you gain weight (a huge amount - which currently is giving me a headache on my currently running project). I know that it is not polite to make advertising job for someone else, but please read Pavel's report about battery boxes, so you can get most answers there.

Very impressive. It seems that you also like to say (before chassis starts rolling) GENTLEMAN START YOUR ENGINES! I hardly wait to see final masterpiece.

This looks promising.

CV joints are a bit stronger indeed, specially newer 3L universal joints. Important feature is that on overload CV Joints usually pop out and universal joints can break...From my experience when you want to built 4ws vehicle CV joints can be good solution.

@Jim, I hope now is better. I've used images with 800 x 600 resolution. If there is something else that can be made better, please comment.

Ladies end Gentleman, I (miss)use a freedom to present you my version Unimog U423 in 1:17.5 scale to fit future models that I plan to built. (At the end I have decided to make models in 1:15 scale) Since introduction of new Unimog Implement carrier, I was very impressed with possibility to make my own LEGO Unimog Implement carrier that would fit my other models in proper scale. At that moment all my models were something in between 1:16 or 1:17 Scale and like @Bricksonwheels nicely said once truth is always somewhere in between. Then rumors about new tractor tire started to fill the comments here on Eurobricks abnd because most of my mocs are tractors some things got upside up. First question was - what can I do and make decision for future models and which scale to use...After a while i remembered my good friend Ingmar ( @2LegoOrNot2Lego... ) and his U.S. trucks since LEGO produces 62.4 x 20 Truck tires in some respected range of years so far, and set 42043 (one of my favorite) is still assembled. So I take a look around what was not so difficult, since I drive some 100 miles every day because of my daily job and started documenting trucks and tires on them. After seeing that some tire dimensions are always repeating I've decided to look at on-line brochure and ask tire sellers to see which is the most common tire dimension. The result (currently) for European built trucks was tire with approximately 1100 mm overall diameter ( mostly 315/80R22.5) and for U.S trucks this is 43.2" (which is also approximately 1100 mm for 11R24.5 tire). So when you want to calculate you would end up with following scale 17.5 (1100 / 62.4). So every truck can be represented with that tire which has very good steering capabilities and grip level is (for me) satisfying. Finally I can make Unimog that has all characteristic features for this vehicle; portal axles, all wheel drive with central differential...like on image ...and then the shock - I could not integrate hub reduction based on gear 16 tooth and gear 8 tooth partially inside wheel... well back to the drawing board and I felt like Wile E. Coyote After several month of brainstorming I've decided to buy this wheel (which is actually quite expensive) and what a pleasant surprise Portal axle hub fits nicely inside this wheel (wheel from set 5571). The only problem was that 68.8 X 24 tires are to soft for planned weight on Unimog, so I have to think about something in the future, but major problem was solved and development of Unimog for living room can start. My goal was to make something like this versions with some 175 mm wide mudguards which gives about 18 studs overall width for model. Currently you can see front axle which should probably be redesigned to make some 2-3 studs "gap" between tires and mudguard and a Wheel that will be used for Unimog. At the moment I did not decide to make short or long version (long version has enough space to use central differential). Model dimensions: - length 40 studs - wheelbase (probably) 26 studs - height 23 studs - width 18 studs Model should have this features: - all wheel drive - fully independent axles with 4 links suspension - portal hubs - front wheel steering - in - line 4 cylinder fake engine - cab tilting - hood opening - door opening - motorized front and rear pto - preparation for additional attachment or platform... (motorized) Current images are here (but due to free time I doubt that I'll be able to make a video) Please make your suggestions, comments, criticism and admins do not hesitate and correct or warn me for everything that is not correct with Eurobrics rules. (After few years of building this models, I have decided to make all models in compromise scale 1:15, of course if something new in term of tires does not come up from LEGO...)

Thank you very much