Blakbird

No I didn't, but after I made that link the topics were later merged.

Yes, you have one of the diffs backwards. Flip either one of them and the problem will be solved.

The transmission has a built-in clutch that disengages the motor while shifting. Shifting is not instantaneous, it takes about a second to get into the next gear which is why you see the reduction in speed in the interim.

That's a Chinese copy. Poor quality. There is a whole topic on here somewhere about copies and their quality. In one of the pictures you can see they build the engine with the cylinders upside down!

It does use the tires from 42000. If Rebrickable shows the tires from 8880 then it is incorrect (although those tires are almost the same). 8871 tires would fit but would look way too small (low profile).

Glad you like it! I am working on synthesizing the string in my model so I can render the whole thing. Should be done by tomorrow. I also wanted to ask you about the thread spools. How do you wind the thread onto the spools in the first place? It seems like this could be quite time consuming. It would be nice to have a small motorized device to wind the thread off of the spool on which it is purchased onto the machine spool. It would also be nice if you could just use purchased spools right on the device. Maybe I'll explore that. What thickness of thread did you use? Looks fairly thick.

The Bill of Materials is done. 1929 parts total, with an average Bricklink value of about $225. Note that I did not include any motorization in the file, but you can easily add any of the PF motors to the back where the input crank is. Download the Brickstore BOM here.

Can't it be both? The drum was a lot of fun. By the way, I confirm that it all fits perfectly with no stressing of parts. However, there are some areas elsewhere in the model that stress the parts a little. The yellow diagonal braces on the side of the frame are an example. 9-11-14 is not a right triangle! (but it is close) I couldn't resist posting this picture of the drum and planetary sets. It's fascinating! Yes, I will have a BOM soon. I will post the link here when it is available. I'll make the CAD file available as well. I am almost done.

Latest update:

I did? You must be referring to RoscoPC's F1 cars. Even though that topic was started 3 years ago, there has been regular posting in it since then, some of it recently. In any case, you won't be disappointed with the Leitwolf. It is an awesome model, highly detailed and functional. The red pulley wheels are not very important, but guess who has one in their Bricklink store?

I've decided to try to build Nico's braiding machine, and as always, the first step for me is building it in MLCAD. This not only gives me a parts list, it gives me a preview of how everything goes together. In order to build the CAD file, I need to think about every single part. I decided to tackle the hardest part first: the main drum. No doubt this is an example of something that would have been a million times easier in LDD or SR3D, but I like to challenge myself and I love geometry! Not too bad for a day's work!

I knew you would like it! Here is one final render showing the whole ship. It is a boring isometric view, but we needed at least one of them.

True enough. Having a multitude of awesome models to choose from is a good problem to have.

So are you implying that Zblj's video is fake? Go try it yourself. You are quite correct that the rolling resistance needs to be overcome, but this can be done with minimal pressure of one hand.

By popular request, here is a view with a couple of Imperial Star Destroyers. This is an image that rewards clicking through to the full size 1920x1080 version.

Your physics will tell you that the amount of force required to move a rolling vehicle on level ground is zero. A very small force will produce a very small acceleration, but it can still move the object eventually. All you really need to overcome is friction. I have no trouble believing that a Lego could tow a car on level ground at very low acceleration levels.

Madoca is not a Eurobricks user. I'll assume that "MoM" awards can only go to people who have presented their model on this forum. Otherwise the pool is way too big and the tag cannot be awarded. That truck is awesome though.....

I don't have a video camera, but Sheepo has already posted a great video in the first post of this topic.

I can discuss this more when I do my review, but I've had no issues with the gearbox. So far it works perfectly. I can imagine that fresh batteries are probably required, but I have used it quite a bit so far with no problems. I think the issues with the Land Rover gearbox were primarily caused by wiring. When the body was installed, it could interfere with various wiring which would then in turn bind the shift mechanism. It is not easy to resolve because there is no wiring length to spare and it is difficult to see where the interferences are. The GT500, on the other hand, uses extension wires and routes them away from the gearbox.

A really interesting MOC! Personally I find rubbish trucks mechanically fascinating despite their mundane purpose. I am amazed that you were willing to sacrifice a 8421 for parts! For many, this set is sacred. On the other hand, 8436 is fairly disappointing so I'm happy to see that it has been used as a baseline for a massive upgrade. I'm a little distracted by all the holes in the bed due to using Technic beams, but I guess that was unavoidable unless you had 5x11 panels available. Does a single pneumatic actuator have enough authority to reasonably tilt the bed?

The brick built bucket looks incredible, but I have to imagine it is also quite heavy. Have you built a MOC that can lift it?

Stickers come off cleanly as long as they are "fresh". As they age due to UV exposure and become brittle, they also become very difficult to remove and leave behind a lot of residue. Unfortunately, this is also the time during which you are most likely to want to remove them. As has been discussed before on Eurobricks, the Williams racer and Silver Champion have a bad case of this problem. I was hoping newer models had solved the problem with better quality stickers, but I see that my 8258 stickers are currently in the process of disintegrating as well.

Cool model on great high speed video! Nice to see that those propellers can generate a bit of thrust if spun fast enough. Looks like you made them counter-rotating to keep it reasonably stable. Personally, I would dispute the phrase "under its own power" because the power to make this model fly was actually supplied on the ground by another device (a pullback motor) which was in turn powered by a non-lego device (you). In this sense, it is more of a glider.

It was supposed to be a joke relating to the various claims of people to have made flying lego models. Apparently no one got it.

Just finished building it last night. I may do a separate review, but for now I'll just say that the amount of effort that both Sheepo and Jurgen put into this is incredible. Highly detailed, complex model with perfect instructions. Here is the huge pile of nearly 4000 parts I started with. The number of axles, in particular, seemed like it could not possibly be right. But I used them all! There is also a tremendous number of angle connectors. Here is the completed frame sans axles or transmission. Very rigid and robust. The real magic of this thing is the 5 speed sequential transmission with reverse. Without saying too much about it here, I'll point out that it functions very differently than the one in the Land Rover. Here's the rolling chassis. Rear live axle suspension, front Macpherson struts, disc brakes, transmission. Next up would be the interior including dash and seats. Finally here are a couple of the completed car. It looks just as good as the renders predicted! There are some really complex things going on there to generate all the angles. The area just behind the door is particularly dense. In case you wondered what it looked like in comparison to other models, here is Nathanael Kuipers' Pony Car which also resembles a Mustang. You can see the significant scale difference. The GT500 is among the largest cars I own. Many more and larger pictures at my Bricksafe.