Can you Attach your assembly here?
For assistance attaching your files, see: How can I attach a file to a forum post?
I do not see an assembly file *.sldasm in the folder you attached?
Sketches are underdefined?
Geometry not modeled making use of obvious symmetry about the origin?
Is this a class assignment?
You could artificially add Hinge Joint between work geometry - but for realistic motion you should include appropriate clearance between components.
These are both exactly 2.5mm.
In the real world we cannot manufacture perfect parts. Some will be a little larger, some will be a little smaller.
Even if we could - a row of atoms would have to be displaced to assemble as the atoms of both parts cannot simultaneously occupy the 2.5mm position space.
I have changed my design to fit conventional shapes instead. It's a project for a class module. Thank you for reaching out.
Your instructor should have covered the importance of fully defining your sketches.
Here is a picture to emphasize Mr. Mather's point about fully defining your sketches:
This is your "Palm side Part v1" with the sketches changed just by dragging the sketch entities around and resizing them.
I shouldn't be able to essentially destroy the design with a simple drag, especially an inadvertent drag that doesn't get noticed until the product is in the customer's hands (or for your current perspective: when this file opens in front of your instructor who has a grading pen in his hand).
Search SolidWorks help on this topic as it's very important. Mr. Mather has mentioned it twice.
Not only do fully defined sketches make more robust models, but it's also an indicator of how much thinking you put into the foundation of your models and into your design.
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