I have a model about 83mm wide that I am working on, I can't zoom in too close to it because the viewport chops part of the model even though I am not zoomed all the way into it. Does anyone by chance know why it is doing this and is there a setting I can change to fix it?
This Issue is Clipping related, at a certain distance surfaces can't get drawn. Imagine the camera as a "plane" that you're moving into the Object. Whats infront, gets shown, whats behind is occluded.
To fix this issue it is recommended to change the units you use in Blender. You can find them in the Properties Editor -> Scene -> Units :
After this, you scale up your model by a factor of 10, the model is "bigger" but still has the desired measurements and has no visibility issues.