Pvdb

Eurobricks Citizen
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About Pvdb

  • Birthday 03/01/1977

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    Technic

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  • Gender
    Male
  • Location
    Cambridge
  • Interests
    Kids and Family
    Lego Technic
    Kitesurfing
    Many other sports

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  • Country
    UK

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  1. Great to see you are back Grum.
  2. I am beginning to wonder how we have been led to thinking that £130-160 for a mish-mash of plastic panels and parts, seemingly thrown together is money well spent - and worth it?? This line of Technic "display models" are so ugly and boring, even my kids don't want to build them!!! The halo on this model is so horrible, I can barely look at it
  3. Another thing I did, and you could also use with this set up, is use the new red diff as it will lower the ratio right at the source. That will give you more scope to play with the range in the actual gearbox.
  4. Have you tried the gearbox yet? I am just wondering if 1st gear is going to lock it up, if you know what I mean. Especially when the engine is mounted. adding the 7th gear does make things a lot more complex when working with Lego gears and selectors etc, so interesting solution to that problem. Having looked closer, I think you have the 12 and 20 tooth gears the wrong way round for 3rd and 7th in the CAD image.
  5. What a massive improvement on 42125. Nice work. I like the shaping
  6. Its starting to look pretty good. Is there anyway to get a bit more of a curved rear end, Although I like the shapes you have made with the connectors, it is looking a little bit flat. The roof and engine cover looks good. It would be good if you could get the panel in front of the rear wheels to meet closer to panels above, and at the moment I recon the air intakes on the doors are a little bit extreme. However, it is coming together nicely.
  7. Great Tractor and loads of nice functions. I really like it.
  8. I guess it doesn't matter too much, as you can just light up the rear tyres and spin it round
  9. I have put together a short clip showing some of the functions this evening. I need to do a bit more work on a spare chassis I built so that I can also create a clip of the gearbox working - in the mean time.........
  10. That's right about the gearbox - . As for the differential, in my early designs I did engage from either side, but eventually found that in the space I had available, and for the gear ratios I needed, it was easier to engage from the one side.
  11. I have started adding some CAD images on the main post.
  12. I think this is a cool looking build. All of the bodywork just works well together.
  13. I somewhat agree you you on this. For a long while in the build I had a panel solution in place, but it didn't work well either. I spent several days trying all different solutions, including using slope bricks and plates, but they looked even worse so in the end I settled with achieving a good line and accepting the little gaps. If I find a way, it is a relatively simple mod. Don't worry, no offence taken - you don't have to apologise. I am about 80% of the way through building the CAD for this - which takes ages!!! but it is far enough through to take some images of the inside. I will make some clips of the working parts over this coming week. And cheers to everyone for the comments so far.
  14. After well over a year of on and off building I have just finally completed a MOC of the amazing Koenigsegg Jesko. The model features the great syncro dyhedral door opening mechanism which is operated manually via a small lever on the top of the dashboard. It has the triplex suspension on the rear as most other Koenigsegg cars, but in this case also at the front. both front and rear suspensions work well. The gearbox of the real Jesko is a real masterpiece that enables selection of any of the 9 gears on demand, or via the automated electronics. It is also smaller and lighter through clever use of its gear combinations. All of this was pretty impossible to replicate at the scale of this MOC with Lego, but it gave me some ideas for a slightly new concept for a 6 speed sequential gearbox with neutral and reverse. I will make a short clip of how it works in the next week or so. The gear shifters are hidden on the front dashboard, and also move the paddle shifters located at the steering wheel, which are more for show. The rear wing is moveable and the front and rear of the car open up manually. With the gearbox there is no space to fill this car full of battery boxes and motors to replicate the remote controlled opening of all of these doors, so I went with solutions that were simple to operate. A token HOG steering which is slightly hampered by the central windscreen strut - this central strut represents the resting position of the windscreen wiper on the real car, but in this case, adds some rigidity, and also defines the position of the front of the windscreen. It was a fun but very challenging design process - especially the bodywork!!! As for the wing mirrors, a nice little solution in terms of aesthetics but not particularly prone to staying perfectly in position!!! They are staying though. Front Triplex Suspension The two red shocks take the majority of the load. This turned out to be a solid system and plenty firm enough not to sag. One could also use the older 11949 steering hubs - but these are getting a little rare and expensive. Rear Triplex Suspension Quite a big improvement to the layout I used in the previous One:1. It is robust and works well. Gearbox The space for the gearbox was constrained in terms of length and by the requirement to sit the engine as low as possible in the chassis thus it was a challenge to fit everything in. Each shift toggles between the "ODD" and "EVEN" gears, and each second shift switches the other half of the gearbox. Fitting it all in, and achieving the almost perfectly even step ratio between gears took a lot of experimentation and lot of evenings playing with Excel. Neutral and reverse also fit in as part of the sequence as I like it that way in my gearboxes. In summary, a lot of gears to achieve half of what the real Koenigsegg gearbox achieves, and in double the space, but kind of fun to design, build and play with nonetheless and it runs pretty smoothly. What is the point of building a (non-motorised) larger scale super car if you don't at least attempt to put a gearbox in it (42125???) Video Clip
  15. LOL.... that happened to me when Lego brought out the orange gear shift piece. I subsequently binned the MOC and started again, and am still working on it (very slowly as also finishing off a house extension!!!)