Re: ball bearings....
 

I would think if you had an unfinished roller that was still attached to the pipe it was made out of to show the inspector, they would probably accept that (basically, it would have to be finished except for the step in which it is actually separated from the pipe). This might require some creative machining on your part.

Re: ball bearings....
 

yeah well thanks for the input

Re: ball bearings....
 

I believe it would be easier to make a bushing with the given materials, and if im not mistaken the tetrix kit includes (and allows) its bronze bushing.

Re: ball bearings....
 

yeah but we have like 2 bushing left we need three or so...

Re: ball bearings....
 

then purchase more? http://www.legoeducation.us/store/detail.aspx?CategoryID=187&by=9&ID=1617&c=1&t=0&l= 0

Re: ball bearings....
 

not enough time :/

Re: ball bearings....
 

You don't have to ship your Minibot. You have at least 2 and a half weeks.

Re: ball bearings....
 

Just a warning, the ball-bearings were really small. I believe they are 3mm ID, 8MM OD, and 3mm width. I am sure we will see some teams using them, but they were shockingly small when they arrived from Lego.

Re: ball bearings....
 

i don't think we are going to buy any bearing we are now working on making rollers