Gray Gear

[MOC][WIP] Nissan 180SX Type X (Explaining Transmission & 4 Wheel Steering)

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3 hours ago, MinusAndy said:

I think hicas actually steers in different directions to the front wheels depending how fast you’re going? Ie low speed it’s in opposition for tighter turning and agility and when you’re going fast it switches to making it crab slightly.

Exactly. This is the HICAS system at hight speeds on a R32 Skyline:

Since this is supposed to be a drift car (and most drifters hate the HICAS system) I just want to keep the slight crab steering mode that can be turned off for drifting and on if you do decide to do some Highspeed driving on the Wangan :grin:

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Glad to have contributed with a tiny idea that made a bigger challenge of a build :laugh: Seems to have been executed very smoothly from the video, hopefully the gearbox lever won't present any major problems, though I doubt there's anything out of the scope of your genius)))

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Hi everybody, its been a while.

Here's my progress:

IMG_20210324_151503%5B1%5D.jpg

IMG_20210324_151433%5B1%5D.jpg

Mostly Bodywork progress, but some panels are not yet fixed in place. I think I finally managed to get a good line over the rear wheels by slightly tilting the wheel arch outwards.

 

IMG_20210324_152031%5B1%5D.jpg

This is my current version of the taillights, but I am not really satisfied. The shape is kind of hard to do with these 2 circles, and I don't really like the small radar dishes sticking out. 

 

Biggest change on the inside is the reworked 4 wheel steering. The wheels now turn in the opposite direction, because while the slight crab steering I had before was fun to make, it wasn't fun to play with. A decreased turning radius is much more fun!

I'll update you soon with an LDCad picture of the insides :wink:

 

 

 

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looks good, I'm just not convinced by the angle in the front… it seems really high.
But otherwise the bodywork is super smooth. Congrats on making it without any holes !

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The rear wheelarch definitely looks good! May the lights look better if the dish were the other way around? Or part nº2654 maybe? Another option could be a continuous light bar on the rear without the round lenses:

YGKwSAOejW0v3BcS1EBVfmSOoOSOSGP6HO7K62Vs.jpeg

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I spent the last 2 hours making these LDCad Models, I hope it was worth it! I will try to explain how the 4 wheel steering system and Transmission work. Here we go!

0.png

First of all this is the front steering. The tan pins are fixed to the cassis, so the direction of the gear rack is getting reversed by the gray levers. This was necessary due to the placement of the eingine's crankshaft.

 

1%204WS%20On.png

This is the complete 4 wheel steering setup. Main feature here is that the 4 wheel steering can be switched off by moving the red and yellow assembly 1 stud forwards, like this:

2%204WS%20Off.png

The yellow axle is now disengaged from the front steering, and is getting locked in place by the black pin in the middle.

 

Now to the Transmission:

3.png

Brown: 1st+2nd gear. Orange: 3rd+4th gear. Pink: 5th+6th gear. 

Gray: Drive axle to the engine.

 

To move the transmission's clutch rings there have to be some shifting liks that connect the shift lever to the transmission. The purple piece is what I call my "Safeshift System". It can slide left&right on the black axle, following the movements of the shift lever. It's purpose is to lock the gears that are not in use in place.

4.png

 

The two links left and right were easy, like this:

5.png

 

But there was no space left for the middle link, because of the yellow 4 wheel steering axle. So I had to get creative:

6.png

If I can't go under the shift lever, I'll just go above! 

 

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This is the entire setup, Transmission and 4 wheel steering system. It is all very cramped in the 7 studs wide center tunnel, but everything works very smooth.

 

I hope this wasn't too boring and you could understand what I was trying to explain. If you have any questions, feel free to ask :)

 

Best regards,

Gray Gear

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15 hours ago, Gray Gear said:

This is my current version of the taillights, but I am not really satisfied. The shape is kind of hard to do with these 2 circles, and I don't really like the small radar dishes sticking out.

What if the dishes were trans red? Another suggestion would be to do what syclone suggested and use the inverted 2x2 dish, and come up with some other creative brickery for the other parts of the taillights

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this looks pretty cool. and quite compact for the amount of functions !
Just one thing I don't understand, why using a 36 tooth gear on the steering system in the front ?

 

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@syclone Yeah I thought about going with the older style Taillights as well, that might solve my problems.

@Bartybum They are supposed to be trans-red, I just dont have them (yet?) in that color :classic:

@Touc4nx The 36t gear is there to connect the HoG steering. That's not there yet :wink:

 

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