I went to get a 3d print done and they say that the wall size should be a multiple of 0.4mm or 0.45mm
While I was analyzing your model, noticed a few things that I would recommend you to modify. Most part of the side wall is not a multiple of 0.4 mm or 0.45 mm. For proper print, it needs to be. It appears that they are 1 mm. That means there is going to be 0.1 mm gap and that would greatly compromise the strength of the print.
Is this because I chose ABS or something that is easy to fix?
I went to get a 3d print done and they say that the wall size should be a multiple of 0.4mm or 0.45mm
Is this because I chose ABS or something that is easy to fix?