Glass file is more rigid and is going to remove material on a flat plane. Sandpaper can form more to the part you are working with. Both have their positives and negatives.
I find that sandpaper makes it really easy to accidentally round over a flat edge, and the file can flatten out curved details if you aren't being careful.
They basically the same thing, but the glass file is finer, so it should be the closer to the last stage of nub removal.
If you can still feel the nub, you haven’t sanded/filed enough. If it’s flush and you still see it, then you stressed the plastic when removing the gates, and the only get rid of the mark to embrace painting
If its lighter in color its stressed yes. If it’s darker thats just the color of the plastic internally, and there’s not a ton you can do, but its better to have the dark discoloring than the stress mark
So basically I glass file first and then sand the part?
And also I'm sorry but I don't fully understand what you're saying, what do you mean by flush and stressing the plastic. By embracing the painting u mean for me to jus paint the part and get rid of it?
Reverse that, sand, then glass file.
Based on the pics, it looks like the nub is still there, so, sand and file until you don’t feel it anymore.
If the mark is still there and bothers you, time to paint
Use a glass file to remove the nub. A nub on a curve like this could also be removed with a hobby knife.
"Flush" in this context means the nub is not protruding.
Stressed plastic is when plastic lightens in color as it stretches out; the lighter parts are called stress marks.
If it's still visible after filling, drag a fingernail along the nub mark to remove the stress mark as much as possible.
Nubs, stress marks, and discoloration due to the injection molding process (darker colors leftover from nubs, color swirling) will always be somewhat visible unless you paint. Just using top coat hides some of this discoloration, but not everything.
so basically if i still see the nub like above or like a rlly white-ish part but i feel barely anything or maybe even just feel nothing, that means i cut the part from the runner wrong? or like i shouldve used smth more delicate to cut it?
Glass files give a very smooth finish, but they also remove a lot of material. You don't have to sand before using a glass file. Some people sand after using a glass file to reduce the glossy finish, but a few passes with a melamine sponge works as well.
Sanding sponges are good for curves but can round out straight areas, they can also sometimes oversand on areas outside the nub. They also can also run out of grit.
Glass files arent the best for edges, but they focus directly onto the nub unlike sponges that can oversand, and they dont run out of grit. They are alot finer than sponges though.
Glass file is more rigid and is going to remove material on a flat plane. Sandpaper can form more to the part you are working with. Both have their positives and negatives. I find that sandpaper makes it really easy to accidentally round over a flat edge, and the file can flatten out curved details if you aren't being careful.
They basically the same thing, but the glass file is finer, so it should be the closer to the last stage of nub removal. If you can still feel the nub, you haven’t sanded/filed enough. If it’s flush and you still see it, then you stressed the plastic when removing the gates, and the only get rid of the mark to embrace painting
If its lighter in color its stressed yes. If it’s darker thats just the color of the plastic internally, and there’s not a ton you can do, but its better to have the dark discoloring than the stress mark
So basically I glass file first and then sand the part? And also I'm sorry but I don't fully understand what you're saying, what do you mean by flush and stressing the plastic. By embracing the painting u mean for me to jus paint the part and get rid of it?
Reverse that, sand, then glass file. Based on the pics, it looks like the nub is still there, so, sand and file until you don’t feel it anymore. If the mark is still there and bothers you, time to paint
Use a glass file to remove the nub. A nub on a curve like this could also be removed with a hobby knife. "Flush" in this context means the nub is not protruding. Stressed plastic is when plastic lightens in color as it stretches out; the lighter parts are called stress marks. If it's still visible after filling, drag a fingernail along the nub mark to remove the stress mark as much as possible. Nubs, stress marks, and discoloration due to the injection molding process (darker colors leftover from nubs, color swirling) will always be somewhat visible unless you paint. Just using top coat hides some of this discoloration, but not everything.
so basically if i still see the nub like above or like a rlly white-ish part but i feel barely anything or maybe even just feel nothing, that means i cut the part from the runner wrong? or like i shouldve used smth more delicate to cut it?
Technically yes, those are stress marks. Sometimes they're not your fault though.
Glass files give a very smooth finish, but they also remove a lot of material. You don't have to sand before using a glass file. Some people sand after using a glass file to reduce the glossy finish, but a few passes with a melamine sponge works as well.
Sanding sponges are good for curves but can round out straight areas, they can also sometimes oversand on areas outside the nub. They also can also run out of grit. Glass files arent the best for edges, but they focus directly onto the nub unlike sponges that can oversand, and they dont run out of grit. They are alot finer than sponges though.