Liftarms are slightly narrower than bricks?

[Moz]

I've just built an assembly that consists of a large collection of liftarms side by side with 32 long axles through them. What I've noticed is that the lengths don't quite add up - I've got half a stud or so "left over". It's the liftarms being very slightly narrower than a brick. Is this common knowledge?

The reason for using 32 axles as the longitudinal members is that there's a pile of 3x5 L beams going down to the pivot point on the axles, and it gets a little fiddly trying to get left and right drive into there (I'm using two XL motors, one left and one right, rather than differentials), so trying to also find space for axle joiners or whatever was tricky. The three units are 9 wide I'd need 11 long axles, which made it all a bit ugly. But it seems to work the way it is. If I need vertical reinforcement I can remove the 5 long liftarms that are in line with the suspension springs and support it there.

[Zerobricks]

Yes they are in order to move smoothly and not cause friction.

[Sokratesz]

Interesting, I never knew this.

[timslegos]

I had no idea either! Very good information to keep in mind!

tim

[RohanBeckett]

Yup.. discovered this at the start of the year:

http://www.eurobricks.com/forum/index.php?showtopic=51830&st=0&p=925040entry925040

and Blakbird pointed out the obvious in the following post! :)

RB