if you have removed enough material so that the smooth rod can go through the bushings you are nearly there. I recommend testing each hole separately, and very slowly and carefully remove a bit of material with a fine file or drill bit. The rod should slide fairly smoothly through the bushings. This step is a real pain because the bushings are hard to get in and out. The rods could theoretically have quite a bit of resistance and still work, but ideally they would have 0 friction while stopping any sideways movement.
You are not going to get to the ideal state, the best you can do is to get to fairly low friction.
The failure mode if the friction is too high is that when you are trying to pull the X-Axis and extruder up along the z-axis you will instead push the Z-axis of it mountings. These are just friction fitted to the Z-Axis motors and if the friction on the guide rods is too high either the clear plastic things or the white things will be pushed off.
The failure mode if the guide rods allow sideways movement is some additional jitter in your build.
A useful guide is that if the X-Axis can slide down the rod under the force of gravity then it's just right or too loose. If it takes a body builder to slide the X-Axis along the rod then it's too tight. So some resistance but not too much. I wish I could give you hard numbers but I don't know myself. That said if you can get the guide rods through the bushings removing 0.1 mm will remove too much material so be very very gentle. You might already be at the right level of friction, its kinda hard to tell.
E: "Did they... did they just endorse the combination of the JSDF and US Army by showing them as two lesbian lolicons moving in together and holding hands and talking about how 'intimate' they were?"
B: "Have you forgotten so soon? They're phasing out Don't Ask, Don't Tell."
You are not going to get to the ideal state, the best you can do is to get to fairly low friction.
The failure mode if the friction is too high is that when you are trying to pull the X-Axis and extruder up along the z-axis you will instead push the Z-axis of it mountings. These are just friction fitted to the Z-Axis motors and if the friction on the guide rods is too high either the clear plastic things or the white things will be pushed off.
The failure mode if the guide rods allow sideways movement is some additional jitter in your build.
A useful guide is that if the X-Axis can slide down the rod under the force of gravity then it's just right or too loose. If it takes a body builder to slide the X-Axis along the rod then it's too tight. So some resistance but not too much. I wish I could give you hard numbers but I don't know myself. That said if you can get the guide rods through the bushings removing 0.1 mm will remove too much material so be very very gentle. You might already be at the right level of friction, its kinda hard to tell.
E: "Did they... did they just endorse the combination of the JSDF and US Army by showing them as two lesbian lolicons moving in together and holding hands and talking about how 'intimate' they were?"
B: "Have you forgotten so soon? They're phasing out Don't Ask, Don't Tell."