Jump to content


New 8t gear in portal hubs!

bricklink is my best friend bricklink is my friend

  • Please log in to reply
25 replies to this topic

#1 z3_2drive

z3_2drive

    Posts: 667
    Joined: 06-July 12
    Member: 29556
    Country: USA (FL state)

Posted 08 January 2013 - 12:20 AM

don't think anyone has gone into detail about this...but I happened to see the new 8t gears on bricklink for $0.54 per piece!! Of course I immediately ordered 8 out of the 90+ he had :grin: and I am here to show you pics of the gear, and of the gear in the portal hubs. As most of my fellow trial truck/crawler builders know, the 8t gear slides out of place, causing something like this under high torque: :angry:  :wall: Posted Image
Now for pics of new 8t gears! :moar:
Posted Image
Posted Image
Posted Image
And now for the new 8t gears in portal hubs! :excited:
Posted Image
They do exactly what was expected of them, they do not slide into the outside of the portal hub! :thumbup: :thumbup: :thumbup:
Of course, they slide into the inner, larger hole, but this will not happen in any MOC if you build properly :wink:
Posted Image
another angle:
Posted Image
Exactly what we trial truck/crawler builders have been waiting for! :sweet:
~I Need Big Drink

Posted Image

My Brickshelf<would be a shame if nobody clicked on this here link

#2 jorgeopesi

jorgeopesi

    Posts: 1828
    Joined: 30-May 10
    Member: 11011
    Country: Spain

Posted 08 January 2013 - 12:56 AM

I never broke one but good news anyway.
921 almost 1000 thanks to all...

Posted Image

https://ideas.lego.com/projects/79365

#3 z3_2drive

z3_2drive

    Posts: 667
    Joined: 06-July 12
    Member: 29556
    Country: USA (FL state)

Posted 08 January 2013 - 01:37 AM

View Postjorgeopesi, on 08 January 2013 - 12:56 AM, said:

I never broke one but good news anyway.
maybe because I use a lot of power :laugh: (two 10 volt battery packs powering two buggy motors or two xl motors)
~I Need Big Drink

Posted Image

My Brickshelf<would be a shame if nobody clicked on this here link

#4 Jim

Jim

  • Staring at favicons


    Posts: 4711
    Joined: 27-July 11
    Member: 19306
    Country: The Netherlands

Posted 08 January 2013 - 08:30 AM

This really looks like a big improvement. The old ones always seemed like the weak link, even though I don't make TT MOC's.

#5 Boxerlego

Boxerlego

    Posts: 728
    Joined: 26-December 12
    Member: 34903
    Country: USA

Posted 09 January 2013 - 02:58 AM

Wow, these new small gears look heavy duty. I cant wait to get me a set.

#6 gmshades

gmshades

    Posts: 202
    Joined: 19-April 11
    Member: 17355
    Country: United States

Posted 09 January 2013 - 03:05 AM

Anyone know why Lego made version 1 of the 8 tooth gear? I can't think of any old school set to have a reason for the 8t to fit inside the hole of the brick.



#7 Splat

Splat

    Posts: 401
    Joined: 20-August 10
    Member: 12710
    Country: MO, USA (ex AU)

Posted 09 January 2013 - 03:31 AM

View Postgmshades, on 09 January 2013 - 03:05 AM, said:

Anyone know why Lego made version 1 of the 8 tooth gear? I can't think of any old school set to have a reason for the 8t to fit inside the hole of the brick.
From what I remember, 8 tooth gears on axles used to go through plates with holes.

Posted Image Posted Image Posted Image

The design of the old 8 tooth gears allowed the gear to sit flush with the surface of the plate, whereas the new 8 tooth gear doesn't fit between the studs, so it sits above the studs.

An example of this can be seen in the 8090 Technic Universal Set instructions here.

In today's studless Technic world, this probably doesn't matter so much.

#8 Paul Boratko

Paul Boratko

    Posts: 1326
    Joined: 07-January 11
    Member: 15227
    Country: United States

Posted 09 January 2013 - 03:35 AM

I am not 100% certain, but I think those old style 8 tooth ones were designed to be used with those old plates with the holes in them as they fit in the center of the 4 studs over the hole..

Edit: LOL.. I was typing this up as you posted that...

Edited by Paul Boratko, 09 January 2013 - 03:36 AM.

Posted Image

#9 DarkShadow73

DarkShadow73

    Posts: 666
    Joined: 06-October 10
    Member: 13640
    Country: USA

Posted 09 January 2013 - 05:52 PM

What sets have they appeared in this year, if any yet?  Like the topic beginner said, those 8-tooth gears slip out of place when meshing with another gear, case in point, the 8-tooth meshing with the turntable on the 8043, I never bought the 9398 Truck, maybe they made their debut on that model?  Never sat flush, moved up or down, as in many other sets, 8419 same issue just to name a couple.  I see the 42006 doesn't have any, and I have only the 42010 Race Car for 1H offerings.  But, if a seller on BL is selling them, I wonder what set they came from, curious...

Edit: I just checked the 9398's inventory and they aren't in that set either...

Edited by TechnicFreak, 09 January 2013 - 05:53 PM.


#10 Zblj

Zblj

    Posts: 4962
    Joined: 16-August 09
    Member: 7054
    Country: Slovenia

Posted 09 January 2013 - 06:06 PM

The pull back cars have them.

#11 Carsten Svendsen

Carsten Svendsen

    Posts: 317
    Joined: 05-September 12
    Member: 31347
    Country: Denmark

Posted 09 January 2013 - 06:42 PM

OP, can test these new gears with the worm gear to see if the play has been reduced in comparison to the old gears.
My current project: Antonov AN-140 which is a 1:15,65 scaled airplane

#12 Kronos

Kronos

    Posts: 539
    Joined: 16-August 11
    Member: 19817
    Country: USA (Michigan)

Posted 09 January 2013 - 07:53 PM

View PostZblj, on 09 January 2013 - 06:06 PM, said:

The pull back cars have them.

So does the 42004...

#13 DarkShadow73

DarkShadow73

    Posts: 666
    Joined: 06-October 10
    Member: 13640
    Country: USA

Posted 10 January 2013 - 03:52 PM

View PostZblj, on 09 January 2013 - 06:06 PM, said:

The pull back cars have them.

Ah, good, I have the 42010 Racer and the 42004 right now.  Haven't built them yet.  Like many of you, I have bent or broken 8-tooth and 16-tooth gears.

Edited by TechnicFreak, 10 January 2013 - 03:54 PM.


#14 Burf2000

Burf2000

    Posts: 996
    Joined: 08-July 09
    Member: 6615
    Country: England

Posted 11 January 2013 - 11:48 AM

My new project breaks the old 8t cogs like they are going out of fashion so I cant wait to get some of these.  I thought they would be cost more on bricklink!

#15 DarkShadow73

DarkShadow73

    Posts: 666
    Joined: 06-October 10
    Member: 13640
    Country: USA

Posted 11 January 2013 - 03:45 PM

View PostBurf2000, on 11 January 2013 - 11:48 AM, said:

My new project breaks the old 8t cogs like they are going out of fashion so I cant wait to get some of these.  I thought they would be cost more on bricklink!

You would think being a new part it would garner high prices...just like the claws for the 42006 going for insane prices...

#16 me00rjb

me00rjb

    Posts: 53
    Joined: 23-October 10
    Member: 13883
    Country: UK

Posted 11 January 2013 - 03:51 PM

I bought mine direct from Lego for 11p each just before Christmas.  The inventory showed the new style but I was concerned they might just ship the old style, but nope, definitely the new ones!

#17 DarkShadow73

DarkShadow73

    Posts: 666
    Joined: 06-October 10
    Member: 13640
    Country: USA

Posted 11 January 2013 - 03:56 PM

View Postme00rjb, on 11 January 2013 - 03:51 PM, said:

I bought mine direct from Lego for 11p each just before Christmas.  The inventory showed the new style but I was concerned they might just ship the old style, but nope, definitely the new ones!

me00rjb - what do you mean by 'old style'?  Just curious...

#18 me00rjb

me00rjb

    Posts: 53
    Joined: 23-October 10
    Member: 13883
    Country: UK

Posted 11 January 2013 - 04:29 PM

View PostTechnicFreak, on 11 January 2013 - 03:56 PM, said:

me00rjb - what do you mean by 'old style'?  Just curious...

As in the old-style of 8 tooth gear (perhaps 'original' would have been a better word), that can slide into the counterbores in the beams and hence come out of alignment with the mating gear and get chewed up.  The one we've had to live with for years and has desperately needed updating!  I wasn't sure if Lego would differentiate between the original and the new part, therefore I wasn't sure what I would get.

#19 DarkShadow73

DarkShadow73

    Posts: 666
    Joined: 06-October 10
    Member: 13640
    Country: USA

Posted 13 January 2013 - 04:21 PM

View Postme00rjb, on 11 January 2013 - 04:29 PM, said:

As in the old-style of 8 tooth gear (perhaps 'original' would have been a better word), that can slide into the counterbores in the beams and hence come out of alignment with the mating gear and get chewed up.  The one we've had to live with for years and has desperately needed updating!  I wasn't sure if Lego would differentiate between the original and the new part, therefore I wasn't sure what I would get.

@me00rjb - I've built so many models that had this problem with the mating of the 8-tooth gear 'slipping' out of contact with the opposing gear...if I could I'd buy a bunch of them and put them in place of the 'old' 8-tooth gear, but with this gear brand new likely it will command high prices on BL, and in short demand right now I'm sure

#20 Alasdair Ryan

Alasdair Ryan

  • Technic Hall of Fame Editor


    Posts: 5643
    Joined: 22-November 09
    Member: 8292
    Country: Scotland

Posted 13 January 2013 - 04:25 PM

View PostTechnicFreak, on 13 January 2013 - 04:21 PM, said:

@me00rjb - I've built so many models that had this problem with the mating of the 8-tooth gear 'slipping' out of contact with the opposing gear...if I could I'd buy a bunch of them and put them in place of the 'old' 8-tooth gear, but with this gear brand new likely it will command high prices on BL, and in short demand right now I'm sure

It will only slip if you don't have adequate bracing. :blush: :wink: :laugh:
Posted Image

Updated 10/03/15
Posted Image

#21 me00rjb

me00rjb

    Posts: 53
    Joined: 23-October 10
    Member: 13883
    Country: UK

Posted 13 January 2013 - 09:36 PM

View PostTechnicFreak, on 13 January 2013 - 04:21 PM, said:

@me00rjb - I've built so many models that had this problem with the mating of the 8-tooth gear 'slipping' out of contact with the opposing gear...if I could I'd buy a bunch of them and put them in place of the 'old' 8-tooth gear, but with this gear brand new likely it will command high prices on BL, and in short demand right now I'm sure

I've already started using them in place of the old gears.  The beauty of it is, you can buy them from Lego right now, at a reasonable price (I paid 11p each).  At least I was able to get them here in the UK.

#22 DarkShadow73

DarkShadow73

    Posts: 666
    Joined: 06-October 10
    Member: 13640
    Country: USA

Posted 14 January 2013 - 07:53 PM

View PostAlasdair Ryan, on 13 January 2013 - 04:25 PM, said:

It will only slip if you don't have adequate bracing. :blush: :wink: :laugh:

@Alasdair-

Just to name one set, the 8419 Excavator, there is play on the axle where the 8-tooth meets the worm gear and the 8-tooth has to much axle to slip up and down with, making the set somewhat difficult at times...same thing with the 8043's turntable, that little 8-tooth gear that turns the table seems to always slip up and down not meshing securely with the turntable gear...

#23 jantjeuh

jantjeuh

    Posts: 1679
    Joined: 17-September 10
    Member: 13314
    Country: The Netherlands

Posted 14 January 2013 - 09:01 PM

View Postme00rjb, on 13 January 2013 - 09:36 PM, said:

I've already started using them in place of the old gears.  The beauty of it is, you can buy them from Lego right now, at a reasonable price (I paid 11p each).  At least I was able to get them here in the UK.

Using Pick-A-Brick?

#24 me00rjb

me00rjb

    Posts: 53
    Joined: 23-October 10
    Member: 13883
    Country: UK

Posted 15 January 2013 - 07:19 PM

View Postjantjeuh, on 14 January 2013 - 09:01 PM, said:

Using Pick-A-Brick?

Using the replacement parts service.  Which now has set inventories to browse to make life easier, rather than having to use the ID numbers from the instructions!  Don't know if this link will work for everyone, but worth a try:

https://service.lego...arts/#BasicInfo

Follow it through to 'Buy a Piece' and then 'Bricks and Pieces Selection'.

#25 Jim

Jim

  • Staring at favicons


    Posts: 4711
    Joined: 27-July 11
    Member: 19306
    Country: The Netherlands

Posted 15 January 2013 - 08:05 PM

View Postme00rjb, on 15 January 2013 - 07:19 PM, said:

https://service.lego...arts/#BasicInfo

Follow it through to 'Buy a Piece' and then 'Bricks and Pieces Selection'.
Nice! Didn't know that.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users