Hi felipe.vallejo,
Please note that you posted in the “old” forum. We have moved.
I have no idea, based on the images. Setups depend on so much more than the image can show. I (pretty much always) need an example file: no images, but thanks for the effort.
Anything else leads to guessing. The only thing I get from your text is that you use MoSpline. If that is the problem, check the Spline> Generation Mode.
https://help.maxon.net/c4d/2023/en-us/Default.htm#html/OMOSPLINE-MGMOSPLINEOBJECT_GROUP_SPLINE.html#MGMOSPLINEOBJECT_SPLINE_MODE
Again, this is a wild guess and not how it should work. If you have an example, please use DropBox to share it; thank you.
Is there any way to have all parts from the start but scaled down? Again guessing.
All the best