I am trying to duplicate a rotated group of objects and then rotate them counterclockwise to make a symmetrical group of the original group.
The issue is that when i do this, there are .001 differences in their placements even though everything was precisely position from the very beginning before I duplicated and rotated anything.
I have tried using plugins that duplicate entire groups but I still end up with .001 differences in the position of the parts.
What exactly are the differences in appearance? Can you provide visual presentation of that?
In appearance there’s nothing visible, I’m just picky and wish it was exactly symmetrical. And yeah here are two pictures for reference!
Oh, that’s just the floating-point errors. They occur every now and then when it comes to rounding errors where the computers are unable to precisely determine the correct number to round to.
The common solution is to not use large decimals for building symmetries, stick to the measures of 1, 0.5, 0.2, 0.1 and 0.05 in studs.
Alright! So since these specific parts do this, I have to change the position manually to get it exactly symmetrical? Like, I can just duplicate the entire group of parts since some parts will be .001 off?
Not exactly, it is more about the building of the models. Also, the bounding box size differs with rotated parts. You can certainly try using an invisible box that covers the entire model for high precision of rotation.
What do you mean by invisible box?
It’s a regular BasePart sized large enough to cover the entire model that I use for certain building techniques. It includes changing the center of a model and the bounding box’s orientation.
Sorry I am asking so much, but would you mind explaining how I can do that too? Sorry! 
I would but at the moment as I write this, I do not have the tools to actually demonstrate exactly how this is done. At least I know the steps:
Oh it’s ok! I’ll try to look this up, maybe someone has shown how to do this before. Thank you for replying though!
