Machine marks after slide was machined
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  1. #1
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    Machine marks after slide was machined

    Hi, I wanted to get other people take on machine marks before a contact the company that did the machining. I purchased a new Glock in April and the barrel brush(at least I think it was the barrel brush) made a minor scratch on the slide. Me being OCD I fixated on the minor scratch. I also eventually wanted to get a red dot sight so I sent my slide off to get an RMR cut and be titanium nitride coated. After I sent the slide I was looking on the companies site and did an impulse buy on slide serrations...I just received the slide today and there are machine marks and a scratch or and imperfection in the titanium nitride treatment that I got to say I’m not very happy about. I wanted peoples opinion who have sent their slides off to be machined on if this is normal or should I contact the company and have them clean it up? Name:  8695915D-F84D-4B3C-9E70-4D7729E66D77.jpeg
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  2. #2
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    I'm way out of my league here, but if I what I think I understand about TiN is correct, it's leaves such a thin layer that I wouldn't expect it to fill in any imperfections in the metal.
    I'm on Twitter @GlockGuide http://twitter.com/GlockGuide

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    Quote Originally Posted by MtStream View Post
    I'm way out of my league here, but if I what I think I understand about TiN is correct, it's leaves such a thin layer that I wouldn't expect it to fill in any imperfections in the metal.
    I wasn’t expecting it to fill any imperfections in the Metal (technically it’s a brand new gun there were no imperfections in the Metal)when he cut the serrations the bit of the cnc(i’m assuming it’s a CNC) Machine made the swirl marks. This is common and it should’ve been addressed they can sand/polish it out afterwords. Did you zoom in and look in between the separation cuts of the pictures and see what I’m talking about or are you just saying that kind of offhandedly?

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    I was thinking about the pre-existing scratch you noted in the pic as one of the reasons you sent the gun in.


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    Quote Originally Posted by MtStream View Post
    I was thinking about the pre-existing scratch you noted in the pic as one of the reasons you sent the gun in.


    Sent from my iPhone using Tapatalk
    Oh, It wasn’t a scratch in the Metal it was a scratch in the finish that I couldn’t buff out. That scratch is gone I was just trying to explain why I sent it in the first place. It was literally just metal transfer from the barrel brush onto the finish of the slide much the same way a knife transfers metal onto a ceramic plate when you’re eating and it really bugged me because I’m OCD.
    Last edited by WillyWantAGun; 10-04-2020 at 04:04 AM.

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    If you are going to shoot this weapon it will acquire usage marks anyway, some of us regard these as character marks.



    Myself, I would be more concerned with the milling marks in the serrations, and again, are you going to use this one, or put it up for a safe queen ?

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    Quote Originally Posted by Otintx View Post
    If you are going to shoot this weapon it will acquire usage marks anyway, some of us regard these as character marks.



    Myself, I would be more concerned with the milling marks in the serrations, and again, are you going to use this one, or put it up for a safe queen ?
    Safe queen… It’s going to go on the wall with the shrine around it...dah... kidding of course Im going to use it but I’m the kind of person if I get a scratch on my iPhone I obsess over it. There’s a break in period in my brain until I can actually enjoy somthing and I wanted a brand new finish just to have thats new, then I’ll put the dings in it… I am completely f-ed up...I know... also I am more worried about the milling marks than anything else.

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    From your pictures you posted the original scratch is something only you can see.

    But the endmill marks are worth talking to them about. Specially on the front serrations, those are straight through cuts.

    Looking at the link you posted in another thread leads me to this question: Did you order a TiN finished slide for $70 or a TiN finished - polished slide for $170?
    With the $70 finish I'm not surprised the original mark is still visible to you. Something I would expect would be if the slide was polished before the finish was done. The end mill marks shouldn't be there imo.

    Gaz
    Last edited by OHgaz; 10-04-2020 at 09:45 AM.
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    Quote Originally Posted by OHgaz View Post
    From your pictures you posted the original scratch is something only you can see.

    But the endmill marks are worth talking to them about. Specially on the front serrations, those are straight through cuts.

    Looking at the link you posted in another thread leads me to this question: Did you order a TiN finished slide for $70 or a TiN finished - polished slide for $170?
    With the $70 finish I'm not surprised the original mark is still visible to you. Something I would expect would be if the slide was polished before the finish was done. The end mill marks shouldn't be there imo.

    Gaz
    Thanks for taking the time. I did the regular TiN finish not the polished. Though I don’t think that should matter before they coat the slide with TiN they should’ve taken the time to to prep the serrations they cut and make sure there was no milling marks at least to the degree to not show through the coating, just seems sloppy. I mean if the nail marks we’re going to be there you would think they would have some sort of disclaimer on the site. Also you mentioned polishing before putting the TiN on is that how they do Polish tin they don’t polish it afterwards? You learn something new every day. Again thank you for taking the time to answer my question I appreciate it.

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    The only way I could see most of these issues was to zoom up the images... Not sure how noticeable they are in real life... But it is your gun, so if it bothers you...

    I wonder if the front serrations might have been done with an older manual milling machine.

    I avoid coatings of any kind as they can affect tolerances in the gun... Having said that, I'm a competitive shooter and probably harder on my guns than most of you... Little scratches and imperfections don't bother me.
    "While the anti-gunners seem very concerned about the "one life" that your firearm might take -- they are not very concerned about the lives it will save." Jon H. Gutmacher, Florida Firearms - Law, Use & Ownership

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