I'm trying to do a scissor mechanism. When I add too many mates it locks up the scissor.
this is my first design table and assembly design so there are likely to be lots of problems from me not following best practice.

I tried to simplify the main assembly (x-axis assembly) by using multiple assemblies.

The scissor mechanism is floating in its assembly. I did have a mounting screw to constrain it initially but it didn't seem to be helping so I deleted it.

any help is appreciated to find out what is stopping everything from sliding as designed.

I'm trying to upload the model but it's timing-out for some reason. ill keep trying.