can not substract

Hi all,

I need to substract a twist core wires with a holo wire but it didn't work. What's wromg with it? please help! THANKS

OBJECT1.dwg

OBJECT-2.dwg

It's ok, I can subtract it one by one (one core by one holo).

By the way the cores made of 7 circles d=0.50 and sweep along circle path w=14.80 at 2160 twist angle then subtracted by 7 holo rings (2.00X15.80 ring subtracted by 1.20X15.40 ring / object 1 in picture).

The problem is, when I change the twist angle into 2280 for the sweep object I can not subtract the result with object 1. Only one core can be subtracted but not for the other six.

Command: sweep

Current wire frame density: ISOLINES=4

Select objects to sweep: 1 found

Select objects to sweep: 1 found, 2 total

Select objects to sweep: 1 found, 3 total

Select objects to sweep: 1 found, 4 total

Select objects to sweep: 1 found, 5 total

Select objects to sweep: 1 found, 6 total

Select objects to sweep: 1 found, 7 total

Select objects to sweep:

Select sweep path or [Alignment/Base point/Scale/Twist]: t

Enter twist angle or allow banking for a non-planar sweep path [bank]:

2880

Select sweep path or [Alignment/Base point/Scale/Twist]:

What is it caused by? is it because of the angle or the subtracter is not big enough for it?

Sorry cannot send the file, it's too big even I zipped it. Thanks for help!