So i am printing a numbering system for chairs and it is both sided but i made the mistake of making the 2 halves fit by making them smaller so now i have 2 different sizes of numbers.
Next part of this is that any numbers that holes inside of them so 4,6,8,9,0 dont fit into the bigger half also the numbers are modeled with tolerances in mind but for some reason they only fit into the smaller half but the smaller half ones are build after the number in the smaller half. I can also incluede 3mf if that will help.
Your description is a little unclear, so this is a guess.
I believe your concern is why your scaled numbers do not fit their respective negative spaces (holes as you call them).
You state you scaled them, and based on the complaint of why and how they fail to fit, it is his you scaled them.
If we simplify the situation, image a circle. To solve your problem you would have a negative space slightly bigger than the circle that will be placed into it.
That works because the contact points between the circle and it’s negative space are moving in one direction, which is outwards.
Now imagine the number zero, this has an outer edge and an inner edge. If you scale this uniformly, the outer edge will expand as will the inner edge, yet this actually needs to contract.
You must remember the scaling needs to affect the shape and not the size.
The solution is to thin the numbers, think of this as regular vs bold font faces. They are the same typeface, but one is slightly thicker. You need to perform a similar action, but with less of a distinct change between regular and bold.
Depending on your CAD software, you should be able to trim or expand the edges of the numbers uniformly. The aim is to make the outer edges bigger and the inner ones smaller. Your software should have documentation on how to achieve this.