thiagovieira

LEgo 42070 - 6x6 not moving forward and backward

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Hello guys,

 

How are you?

Im new here, Im from Brazil and Im mounting my 4th Lego toy, I finished and everything is mounted by the book, is doing all movements except go backwards and forwards.

Looks like that I dont have enough traction to move truck.

Im attaching photo from bottom, as im new here i dont if is possible to upload a video, but i will try.

 

thank you so much guys for your attention, as this is my new complex lego, maybe lost a detail.

lego.jpeg

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Your second axle's diff needs to be flipped.

I think we need a 42070 help topic pinned, as by so many people having issues with this set's driveline.

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Hello Zerobricks,

 

Thank you so much for your help, but as im starting can i kindly ask you to circle part that needs to inverted please?

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Hello JunkstyleGio,

 

How are you?

 

Thank you so much, i didnt know that could influence on that.. :(

 

I will try to do it today or tomorrow, when i got some time and post result here.

 

once again, thank you so much.

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The second axl would drive forward and the third axl backwards at the same time. That's wy its not moving. 

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2 hours ago, Zerobricks said:

I think we need a 42070 help topic pinned, as by so many people having issues with this set's driveline.

The biggest issue with the 42070 is that someone bought it in the first place ;)

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11 minutes ago, Sariel said:

The biggest issue with the 42070 is that someone bought it in the first place ;)

Okay, I'm really starting to feel that owning this thing is damaging my already-limited street cred. :look:

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2 hours ago, JunkstyleGio said:

@thiagovieira Don't worry it is one of the most common mistakse made with this model.

 

We've all been there :laugh:

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13 minutes ago, thiagovieira said:

ahahha, im just afraid to exchange axle position, looks like a hard job.

Remove the bodywork and modular build sections. This way you have less to take apart and rebuild.

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Hey guys,

I just rotate 180 degrees second drive. 

I really loved ,it's working now.

Unfortunately I can't post here.

Someone knows how to explain that effect in engineering words?

Once again thank you so much.

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8 hours ago, thiagovieira said:

Hey guys,

I just rotate 180 degrees second drive. 

I really loved ,it's working now.

Unfortunately I can't post here.

Someone knows how to explain that effect in engineering words?

Once again thank you so much.

When a gear is turning, the second gear it's turning will turn in an opposite direction.
So look at the gears and think: "Left, right, left, right, left, right.." 

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just to throw a wrench into the thoughts....    what is the proper mount of the front differential, as in if you were looking at the front of your model, would the main diff. 28 tooth gear would it be on the left side or the right side if you looked at front and under the chassis..  ??  just not on this 42070 lego set but on all Lego technic set.. 

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I fear the day TLG will release a motorized 8x8. I think their instructions and color coding will have to be even bolder.

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1 minute ago, Zerobricks said:

I fear the day TLG will release a motorized 8x8. I think their instructions and color coding will have to be even bolder.

Ha! :roflmao:

But I'm afraid you're right. 42082 has two diffs and, what, almost a dozen colours in the chassis? So yeah, 8x8 would be way over the pukebow.

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