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The Gearbox I have been playing about with some sequential gearbox ideas over the last year trying to work out how to get more than 4 gears out of the 42056 style gear system, and more importantly with realistic ratios between the gears. I thought that I was getting somewhere and decided that it was finally time to build a new car around this new gearbox, however, the first iteration gearbox was not up to scratch, so I put it to one side, spent last summer working on my house, and came back to it in the autumn determined to make it work. The other key design aspect was that this all had to fit within a 1:10 scale model, with the engine not mounted ridiculously high. The solution I came up with has a lot of gears in it (mostly idlers) but it works well, and is geared so that 1st gear doesn't just lock up the rear wheels when the car is pushed along. This version has reverse, neutral and 5 forward gears. 1st-2nd - 1.667 step ratio 2nd-3rd - 1.333 step ratio 3rd-4th - 1.250 step ratio 4th-5th - 1.200 step ratio The Supercar This time I decided that it would be my own design, but there were a few ideas from a few real cars that influenced the outcome, the car also adapts and builds on some ideas presented in other recent MOCs such as the gear shift/selector by Didumos69, Here are some pictures.

I like it. Nice details and really good looking.

Amazing details. It looks fantastic

Nice work there. It is coming along. ??

I have just logged in for the first time in a while and am pleased that I did because this car looks fantastic. Great job on the bodywork.

Nice work on this. The bodywork looks great and the roof is nicely done.

In general the shape is good. I am really liking this so far. However from the angle of the latest picture I am not sure about the central panels which leave some strange shaped gaps. Appreciate that a smooth curved bonnet is so hard to create with technic though.

It's all been said above but just to add that I also think that you have done a really nice job on this MOC. I was looking forward to the Aston though. You were really getting there with the bodywork.

I really like that gear shifter mechanism. The chassis is looking nice as well. As said before, very clean looking.

This is really nice. Inside and out.

Nearly done. You are definitely getting quicker and quicker. You'll have that above list done in no time at this rate

Manual of course. But I would say that. The bodywork is looking better and better. Handy that wheel arch from 42056.

Yes. This one is my favourite so far. Great bodywork. You have replicated the looks so well

That is a great looking bike. fantastic details and shape.

Thanks to Thorsten50 the instructions to this model are now on rebrickable http://www.rebrickable.com/mocs/Thorsten50/mclaren-f1

Great model both on the outside and on the inside. I like the way you have incorporated the steering functions. Nice work.

I like it a lot. Nice functions. And I tthink it looks better than the A model of this set

Well I have been away for a few days and missed all of the excitement of this set being released. I was really pleased that Lego were eventually going down this line and even happier when I saw some of the first pictures of the Porsche, even though it is not my favourite car by a long way. I know how hard it is to do such a great job on the bodywork, even if you are able to make up some new parts to help out!! With regard to the looks, I think Lego have really pushed the boat out and modernised this set in a good way. However, following some of the great reviews, I am thus pretty shocked with the effort that has seemingly gone into the inside of the car. I have often been fascinated by some of the solutions that the Lego designers have dreamed up – especially in some of their smaller vehicles, there is not much of this in the Porsche though and the fact that they have messed up the gear shifting pattern and forgotten to add the limiter to disallow direct 1st - 4th gear change, and also not put in a solution to make only 1 reverse gear, in my opinion is pretty dire and unprofessional. Even an amateur designer should be embarrassed to release a solution like that and I am sure that even some kids who are lucky enough to get this set will notice the incorrect sequence. I know that I probably would have at about the age of 10 (although I wouldn’t have been lucky enough to get hold of it at the price it is!) A quick point on the gearbox. When I designed the similar gearbox for my Koenigsegg, my experimentation led me to realise that it was important not to include any gears in the gear change mechanism – only use the knob wheels to absolutely minimise backlash through the mechanism. I see that there are some 8 tooth gears in the Porsche mechanism which means (as shown in some of the videos) that some backlash has been introdused and therefore there is not the full 90 degree rotation in the gear selectors (the 2L Orange Beams) that is required to get a more reliable shift ensuring engagement and more importantly disengagement of the clutches. (did they really spend 3 years on this – it took about an hour for me to realise this) The fact that no effort has been put into designing a semi realistic suspension set up is also a big let down. As for the rear steering and perhaps changing the dynamics of this in relation to the gear selection. Now that would have been ultimate and would have included something technically very clever and special to this model. However, I am not so surprised that this has not been included as it would have been very complex to engineer. So, in my opinion, a great looking model (which is important for this line) hugely let down by worse than amateur solutions under the bodywork. However, I really hope that all of this criticism doesn’t put Lego off but that they try to better themselves on their next attempt.

Thanks Rikus, nice to hear you enjoyed building it. As for your comments, yes it is surprisingly important to get the red gear selector alignment correct on the axle joiner. The front suspension is compressed I agree, this is a compromise I took in order to keep this suspension set up in order to approximate the front suspension set up in the real car. As for the rear engine cover, it is quite heavy so to lift with just one gear knob resulted in the back being raised unevenly (due to gear backlash). The two gear knob solution seemed to work much better (even though as you rightly say adds a slight complexity to operation) so that's what I went for. I would also have liked the doors to open a bit faster, but strangely my kids seemed to like them as they are. I guess it keeps them engaged longer.

Yes. New gearbox part should fit as you see I used some spacers already. To ensure the older red parts slide easily you need to make sure the axle joiners are lined up inside so that the flatter edge slides over the little catches on the red gear selector parts

I am really really interested in the design (and location) of that gearbox.

I agree, one could argue that the front shocks are too compressed, This was a slight compromise I made in the design of the suspension set up. However, in terms of looks and how the car finally rests I was happy with the end result. Interesting about PDFs from MOCplans.

That is an error. That part should be added on page 71 !! but you should be able to get it in with some gentle manipulation. I am noting the errors.

On that last 60psi run. Should have burnt out the tyres a bit beforehand for a bit more grip ☺☺ great fun little project I enjoyed watching the video.

This is a great looking build and nice functions.