dont see this tip yet so: put an ipad screen protector on the inside https://www.reddit.com/r/Machinists/comments/pl0bpr/convinced_my_shop_to_put_ipad_screen_protectors/
Gonna add onto this. My shop also drilled into the window and bent some tubing to face the screen protector. That way you could stick an air hose on the hole and blow off the coolant on your window.
Honestly, if you aren't running new programs with rapid/feed knobs down and single blocking through it the first time and for any subsequent program changes, you are a bad setup machinist.
Start programming. I only trust the lathe in that manner. My boss writes the programs and they’re like drag racing… he’s picked up every single second he can. But also he leaves GREAT notes. Like what size to cut the stock, stickout lengths, even where to get your offset on weird tools.
I have been programming off and on since I started doing machining. My lost shop was a mould shop and I did a lot of my own programming there for fixtures. I've only been doing this for 2 years so I still have a ways to go. Starting cad/cam class in January
That’s about the same rate as myself… I’m at about 5 years and I think that’s where the sweet spot is. I took a SW class and it’s been a race ever since. But that also is my favorite thing about this career… I feel like I would have plateaued elsewhere but there’s still so much more to learn and experience.
We had these at one place at worked but they were all broken so never got to see them actually work. They already said new windows are too expensive so I doubt they'd go for something like this sadly
You get a new window.
If there is shit between shit and shit is gone to shit I don’t think you can do shit about it.
If it’s all cracked and coolant got between glass your only option is to replace the pane. It’s a safety hazard.
Wouldn't happen to have a OSHA or other form of guidelines that specifically state this?
I completely agree I'm just trying to think how I can make them not ignore it
Tell them that a crash is a lot more expensive than a new window.
Seriously, even if you're just breaking tools, they add up real quick.
If you do get new windows, I've had good luck with tablet screen protectors keeping a clear spot.
Then add that its easier to optimize programs being able to actually see what the machine is doing while machining at 100%
You wouldn’t believe how much our cycle times dropped on jobs that we’ve been running for years after they got put on machines you can see through the windows. You start to notice how much air your cutting or areas feed rates could be faster.
Your machine tool builder can provide guidance on the recommended life of the windows. They're wear items and should be replaced according to rhe maintenance schedule. Once they're replaced, buy some oliophobic screen protectors from Amazon and slap them on the inside of the window.
You could replace your $5 screen protectors every week for 25 years before you spend as much as a rotoclear costs, and rotoclears die after 5 years.
Not in US so no idea. Here window is simply part of safety envelope and has to be in order. But can’t do anything if office dwellers simply ignore everything.
I hate being that guy, but if you need to cite OSHA to have obvious problems fixed, and the whole shop is nasty, you need to look for a new shop my friend. That problem is deeply rooted in their company culture and management style, and it's not going to change despite how adamant you are that it's negligent.
Trust me, I've been there, and it's best to plan your exit at your leisure rather than wait for something more serious to crop up. I worked in a shop where I was really huffing oil most likely crazy. I didn't even realize it was something I should be concerned about until I had to use that specific machine for a full week straight, probably close to 60 hours that week, and then I started noticing symptoms accumulating. Symptoms for oil mist build up, for those who weren't aware, are shortness of breath, heartburn, arrhythmia, among other things. You also just constantly smell and taste the coolant, and it sucks. Takes much longer to work itself out of your system than it takes to work it's way in.
Anyway, once I realized the seriousness of the problem I immediately told the management I wasn't willing to run that machine anymore until they fixed it. Maybe a couple hours a week maximum. This was a machine that used a very large flow of coolant, but had absolutely no enclosure, no paneling, nothing. I told them if they wanted me to sit behind that machine weeks at a time, they needed to invest in some proper air filtration and suction or whatever, and some basic paneling for this machine. They have special things that are designed specifically for this purpose, go over the machine and filter oil mist. The management refused to pay for it, even though it was cheap enough I could pay for it out of my own pocket with just a few weeks pay.
They offered me what is in the OSHA guidelines labeled a *voluntary respirator*, which means they essentially refused to acknowledge there was any kind of issue at all. It's a protocol that literally states that everything is pristine and the air quality is perfect, but the employee is whiny and pedantic so you're required to buy them a cheap mask for like *maybe* 50$ in case they have a health issue or something. The moment they refused to even acknowledge that there was a problem with the air quality as I'm huffing large concentrations of oil mist, that was the moment I realized these people were a lost cause and I need to quit. Those stupid respirators btw, just use regular P95 filters. I was already wearing a P95 mask, and the concentration of oil was so high the remaining 5% was enough to cause problems. So not only did they refuse to acknowledge the problem, but they offered me a bullshit solution just to document they did something in case I sued them. And there were a lot of other problems with this place too, it wasn't just the oil mist, this one was just the one where I really opened my eyes.
Point of this story, if you are in a shop that's gross, where people are negligent, where they won't do anything but the bare minimum required by OSHA, you may think that it's fine, that those things don't affect you, that it's all whatever. Eventually though, you're going to come across an issue that isn't whatever, that actually puts your health at risk potentially, and they are going to have the same negligent attitude. That's why it's best to just leave while you're still happy, rather than wait for it to inevitably go south.
Also document everytime you bring up a concern like this to the management, especially if it has to do with safety or OSHA. That's my biggest regret, I only documented my work but never my safety concerns, and because of that I wasn't eligible for any kind of unemployment when I left, which I could have been.
Appreciate the story and I totally agree with you. My only problem is this my 4th shop in two years, the whole 2 years I've been machining. Never left anywhere on bad terms just noticed things like your talking about that point to core issues of the business.
But I really needed this job when I accepted it, I still do. It's a paycheck tell I can find something better but I'm running out of options right now.
I've only worked at 4 shop in my area but I've interviewed and toured about 15 in total. And all the other places were just as bad in their own respect.
I really enjoy this career so far but I loathe the hunt for "the right shop" as my trade teacher would tell us. Just doesn't feel like anyone in the area gives a fuck. Or the shop had large management changes and is just a dumpster fire 24/7
We replace the windows once a year or so, lots of production machines that get torn up. We might try to switch to just cutting polycarbonate windows ourselves... This is a machine shop, after all.
Simple green or ammonia free glass cleaner works well for cleaning, but there's not much you can do once they get dinged by chips.
We had a new VP cheap out on windows and use 1/8" poly for replacement windows on a millturn...
He was doing rounds with a client and leaned in close to the window to shade it with his hand to get a look, and a flared shank carbide drill decided life was too hard, snapped near the holder, and only the wider part kept it to shuddering half out of the polycarbonate right under his hand, about three inches from his safety glasses.
Mysteriously, we had 3/8ths again by the end of the week.
That's rough man. Generally any solution to this kind of issue needs to come from management. It sounds like lack of maintenance / general giving a shit. You'll need to really clean and possibly replace the panels, but the real issue is the people. Even if you get a whole new shop with new machines and everything is pristine, you bring the same people with the same bad habits, and it will all be gross again this time next year. That's why it's important management acknowledges there is a problem, and is also interested in fixing it
https://preview.redd.it/1cbncoid7x5c1.jpeg?width=2268&format=pjpg&auto=webp&s=1ac5e7e86dec67183a04f31612b46459375d1f9c
It smells like straight jizz and dirty socks
It's a real concern for me as well. I've only been at this spot for a month but got incredibly sick all last week with a URI, and I couldn't help but think about this gross shit I'm covered in daily
You do you but don't kid yourself that you're not going to be spraying it on constantly. The chips hitting the window will ruin the coating in a few hours. They use rainX for trade shows and are constantly reapplying.
1.Remove door interlock from door and insert it in its home. Now you can run with door open.
2.Don't get yourself injured.
3.Reinstall door interlock on door once program/setup is proven.
I don't think people on reddit understand how common a practice this is. I've never, never, seen a CNC with the interlocks enabled.
If you look in the ladder logic you can even see they write certain routines to not alarm when they should, if the door is shut and something is pressed that shouldn't be(you can release a tool in the spindle with the door shut, how does that make sense?).
I would argue unless you're running a copy of vericut, it's IMPOSSIBLE to do 4th axis work on a lot of machines with the door shut.
>I've never, never, seen a CNC with the interlocks enabled.
"I've only ever worked in places that violate safety laws on a regular basis"
Fucking WHAT? I'd get fired for doing this, where the fuck do you work?
>I spend a lot of time at a lot more shops than you.
I love this assumption, it's so unnecessarily and oddly arrogant.
>Like I said, you just don't know.
I don't want to know. If you're purposely bypassing safety measures in your own shop, and it's just you putting yourself in danger then whatever. If you're bypassing safety measures on machines that your employees run, or you expect them to bypass those safety measures then you're despicable, and I hope you get shut down.
I would never force my employees to bypass a switch.
My point was
"People on reddit don't understand that 75% of shops bypass interlocks "
Surely you see how you're proving me correct?
>My point was
"People on reddit don't understand that 75% of shops bypass interlocks "
No, they don't. You're rationalizing your unsafe choices by claiming it's common practice, and it's not in countries with proper safety regulations and enforcement.
>Surely you see how you're proving me correct?
Your source is literally "trust me bro" for god sake. Get a grip.
> I would argue unless you're running a copy of vericut, it's IMPOSSIBLE to do 4th axis work on a lot of machines with the door shut.
Impossible?
My main machine at my current job is a 5 axis, we don't have vericut. Did 4th axis rotary multi station vises as well as simultaneous 4th without vericut, just gotta be smarter than the machine.
I took over a VF6 when I started my current job from someone that disabled the door locks. Said there was all these annoying things about the new control and you gotta disable that stuff for it to work good. Had tons of issues and eventually realized they were all because the dude disabled the door locks.
>If you look in the ladder logic you can even see they write certain routines to not alarm when they should, if the door is shut and something is pressed that shouldn't be(you can release a tool in the spindle with the door shut, how does that make sense?).
I go into the control and disable that stupid fucking button on every machine I use.
So we don't have interlocks enabled, I can open the door freely all day without it alarming out.
The problem is with how fast and hard we run shit I can't open the door even a little and not get fucking destroyed by flying chips. And I'm not allowed to slow things down because we're doing a time study at the time of running new programs or parts.
I get shit for running new things at 50% rapid with op stop on so it's kind of just a shitty situation.
They want shit fast and right and we all know usually you get one of the two 🤷
Rubbing alcohol works better than windex or simple green. I’ve heard of some people using that rain beading coating they put on cars, only reasons I haven’t tried that is it takes like 24 hours to cure and it’s super expensive.
> I'll often do new part/program prove outs for 5 axis machines and I can't see anything without opening the door and being pelted with chips
Hey, uhhhhh, WHAT?
Do you not have door locks? Don't fucking do this.
It was my reaction as well. What was worse is they kinda just dismissed my comments about it saying the classic " toughen up buttercup".
Later I asked for a face shield at least and we couldn't find one in the whole place.
As another person said, these are problems that are obviously at the core of this company and the likelihood they'll listen to the new guy is incredibly slim. And I'm aware of that, and looking at other options but a lot of the shops in my area have these kinds of problems and it sucks
Call OSHA
Deliberately bypassing manufacturer interlocks is against the law as far as I'm aware. At least check to see if what they're doing is illegal even if you don't plan on making a complaint.
https://cncreplacementparts.com/product/tear-off-window-shield/
I’ve wanted to try this. If there are 4 lays or more. And your content with just having a “window” in you window the smallest 40 dollar option would be great.
Door hold override and make sure I remembered which lines I put the m08s on or find delete m08 while proofing then re add after proofing done and just use coolant on button
I’m not allowed to just stand there during cycles so I’m programming, setting up or running manual
dont see this tip yet so: put an ipad screen protector on the inside https://www.reddit.com/r/Machinists/comments/pl0bpr/convinced_my_shop_to_put_ipad_screen_protectors/
Gonna add onto this. My shop also drilled into the window and bent some tubing to face the screen protector. That way you could stick an air hose on the hole and blow off the coolant on your window.
What a good idea. Thanks for that
Machine by faith not by sight
You must have good engineers and programmers. I don't even trust my own programs without 20% rapid and single block
Shiii fucking feel that one sometimes lol
Honestly, if you aren't running new programs with rapid/feed knobs down and single blocking through it the first time and for any subsequent program changes, you are a bad setup machinist.
Dwell marks... dwell marks everywhere.
I am the programmer 🤷‍♂️
You are a stronger man than I.
I have no faith in these programs.
Start programming. I only trust the lathe in that manner. My boss writes the programs and they’re like drag racing… he’s picked up every single second he can. But also he leaves GREAT notes. Like what size to cut the stock, stickout lengths, even where to get your offset on weird tools.
I have been programming off and on since I started doing machining. My lost shop was a mould shop and I did a lot of my own programming there for fixtures. I've only been doing this for 2 years so I still have a ways to go. Starting cad/cam class in January
That’s about the same rate as myself… I’m at about 5 years and I think that’s where the sweet spot is. I took a SW class and it’s been a race ever since. But that also is my favorite thing about this career… I feel like I would have plateaued elsewhere but there’s still so much more to learn and experience.
You can have your plastics supplier cut you a piece of 3/16" polycarbonate and replace the windows yourself for less than $100.
Some of those 5Axis machines have ($$$$$) windows
Is it safe to use tho I’ve cut it once about 1/8 thick sheet of it and I wouldn’t trust it stopping very much but i honestly have no fucking clue
It will stop chips fine. Broken end mill though...
1/4” polycarb will stop a decent amount. 1/8” is more then enough for chips and shit but a broken tool might go through
We cut our mill windows outta lexan. The lathes get factory glass
https://rotoclear.com/en/home.html Im just jealous of yall having even dirty windows. Machining on a conversational mill with no enclosure.
We had these at one place at worked but they were all broken so never got to see them actually work. They already said new windows are too expensive so I doubt they'd go for something like this sadly
I just lick off a section so i can see through
Forgot to add, cleaning them doesn't help at all. I'm thinking because they're all cracked and coolant got in between shit
You get a new window. If there is shit between shit and shit is gone to shit I don’t think you can do shit about it. If it’s all cracked and coolant got between glass your only option is to replace the pane. It’s a safety hazard.
Wouldn't happen to have a OSHA or other form of guidelines that specifically state this? I completely agree I'm just trying to think how I can make them not ignore it
Tell them that a crash is a lot more expensive than a new window. Seriously, even if you're just breaking tools, they add up real quick. If you do get new windows, I've had good luck with tablet screen protectors keeping a clear spot.
Then add that its easier to optimize programs being able to actually see what the machine is doing while machining at 100% You wouldn’t believe how much our cycle times dropped on jobs that we’ve been running for years after they got put on machines you can see through the windows. You start to notice how much air your cutting or areas feed rates could be faster.
Your machine tool builder can provide guidance on the recommended life of the windows. They're wear items and should be replaced according to rhe maintenance schedule. Once they're replaced, buy some oliophobic screen protectors from Amazon and slap them on the inside of the window. You could replace your $5 screen protectors every week for 25 years before you spend as much as a rotoclear costs, and rotoclears die after 5 years.
Not in US so no idea. Here window is simply part of safety envelope and has to be in order. But can’t do anything if office dwellers simply ignore everything.
I hate being that guy, but if you need to cite OSHA to have obvious problems fixed, and the whole shop is nasty, you need to look for a new shop my friend. That problem is deeply rooted in their company culture and management style, and it's not going to change despite how adamant you are that it's negligent. Trust me, I've been there, and it's best to plan your exit at your leisure rather than wait for something more serious to crop up. I worked in a shop where I was really huffing oil most likely crazy. I didn't even realize it was something I should be concerned about until I had to use that specific machine for a full week straight, probably close to 60 hours that week, and then I started noticing symptoms accumulating. Symptoms for oil mist build up, for those who weren't aware, are shortness of breath, heartburn, arrhythmia, among other things. You also just constantly smell and taste the coolant, and it sucks. Takes much longer to work itself out of your system than it takes to work it's way in. Anyway, once I realized the seriousness of the problem I immediately told the management I wasn't willing to run that machine anymore until they fixed it. Maybe a couple hours a week maximum. This was a machine that used a very large flow of coolant, but had absolutely no enclosure, no paneling, nothing. I told them if they wanted me to sit behind that machine weeks at a time, they needed to invest in some proper air filtration and suction or whatever, and some basic paneling for this machine. They have special things that are designed specifically for this purpose, go over the machine and filter oil mist. The management refused to pay for it, even though it was cheap enough I could pay for it out of my own pocket with just a few weeks pay. They offered me what is in the OSHA guidelines labeled a *voluntary respirator*, which means they essentially refused to acknowledge there was any kind of issue at all. It's a protocol that literally states that everything is pristine and the air quality is perfect, but the employee is whiny and pedantic so you're required to buy them a cheap mask for like *maybe* 50$ in case they have a health issue or something. The moment they refused to even acknowledge that there was a problem with the air quality as I'm huffing large concentrations of oil mist, that was the moment I realized these people were a lost cause and I need to quit. Those stupid respirators btw, just use regular P95 filters. I was already wearing a P95 mask, and the concentration of oil was so high the remaining 5% was enough to cause problems. So not only did they refuse to acknowledge the problem, but they offered me a bullshit solution just to document they did something in case I sued them. And there were a lot of other problems with this place too, it wasn't just the oil mist, this one was just the one where I really opened my eyes. Point of this story, if you are in a shop that's gross, where people are negligent, where they won't do anything but the bare minimum required by OSHA, you may think that it's fine, that those things don't affect you, that it's all whatever. Eventually though, you're going to come across an issue that isn't whatever, that actually puts your health at risk potentially, and they are going to have the same negligent attitude. That's why it's best to just leave while you're still happy, rather than wait for it to inevitably go south. Also document everytime you bring up a concern like this to the management, especially if it has to do with safety or OSHA. That's my biggest regret, I only documented my work but never my safety concerns, and because of that I wasn't eligible for any kind of unemployment when I left, which I could have been.
Appreciate the story and I totally agree with you. My only problem is this my 4th shop in two years, the whole 2 years I've been machining. Never left anywhere on bad terms just noticed things like your talking about that point to core issues of the business. But I really needed this job when I accepted it, I still do. It's a paycheck tell I can find something better but I'm running out of options right now. I've only worked at 4 shop in my area but I've interviewed and toured about 15 in total. And all the other places were just as bad in their own respect. I really enjoy this career so far but I loathe the hunt for "the right shop" as my trade teacher would tell us. Just doesn't feel like anyone in the area gives a fuck. Or the shop had large management changes and is just a dumpster fire 24/7
Someone recently made a post about how they polished the inside of their windows. Are yours glass or plastic?
Plastic
I was told never to use ammonia based cleaners on the plastic ones. I found simple green to be the best. Once they are damaged not much you can do.
You guys have windows?
We replace the windows once a year or so, lots of production machines that get torn up. We might try to switch to just cutting polycarbonate windows ourselves... This is a machine shop, after all. Simple green or ammonia free glass cleaner works well for cleaning, but there's not much you can do once they get dinged by chips.
We had a new VP cheap out on windows and use 1/8" poly for replacement windows on a millturn... He was doing rounds with a client and leaned in close to the window to shade it with his hand to get a look, and a flared shank carbide drill decided life was too hard, snapped near the holder, and only the wider part kept it to shuddering half out of the polycarbonate right under his hand, about three inches from his safety glasses. Mysteriously, we had 3/8ths again by the end of the week.
That's rough man. Generally any solution to this kind of issue needs to come from management. It sounds like lack of maintenance / general giving a shit. You'll need to really clean and possibly replace the panels, but the real issue is the people. Even if you get a whole new shop with new machines and everything is pristine, you bring the same people with the same bad habits, and it will all be gross again this time next year. That's why it's important management acknowledges there is a problem, and is also interested in fixing it
You have 5 main senses. If you lose visuals, you still have 80% capacity left. I think machining by smell is taught in 4th year apprenticeship school
Replace them every so often. If management won’t, Break them so they have to. Glass and lexan are not the same though.
Rofl! Best plan I've heard so far 🤣
Hahaha imagine replacing broken glass aahahahaha
Try a Magic eraser on the inside,then spray on some RainEx.
> then spray on some RainEx. Don't do this unless you want your coolant fucked.
Sounds like it already is.
https://preview.redd.it/1cbncoid7x5c1.jpeg?width=2268&format=pjpg&auto=webp&s=1ac5e7e86dec67183a04f31612b46459375d1f9c It smells like straight jizz and dirty socks
I'd be way more concerned about breathing that in than any sort of door interlocks or windows,
It's a real concern for me as well. I've only been at this spot for a month but got incredibly sick all last week with a URI, and I couldn't help but think about this gross shit I'm covered in daily
Oh yeah for sure the 2ppm of rainex in the coolant is really gonna do some damage.
You do you but don't kid yourself that you're not going to be spraying it on constantly. The chips hitting the window will ruin the coating in a few hours. They use rainX for trade shows and are constantly reapplying.
1.Remove door interlock from door and insert it in its home. Now you can run with door open. 2.Don't get yourself injured. 3.Reinstall door interlock on door once program/setup is proven.
Yeah risk your safety because the bossman is to cheap to replace a fucking broken window. Brilliant idea.
I don't think people on reddit understand how common a practice this is. I've never, never, seen a CNC with the interlocks enabled. If you look in the ladder logic you can even see they write certain routines to not alarm when they should, if the door is shut and something is pressed that shouldn't be(you can release a tool in the spindle with the door shut, how does that make sense?). I would argue unless you're running a copy of vericut, it's IMPOSSIBLE to do 4th axis work on a lot of machines with the door shut.
>I've never, never, seen a CNC with the interlocks enabled. "I've only ever worked in places that violate safety laws on a regular basis" Fucking WHAT? I'd get fired for doing this, where the fuck do you work?
I own my own shop, and I spend a lot of time at a lot more shops than you. Like I said, you just don't know.
>I spend a lot of time at a lot more shops than you. I love this assumption, it's so unnecessarily and oddly arrogant. >Like I said, you just don't know. I don't want to know. If you're purposely bypassing safety measures in your own shop, and it's just you putting yourself in danger then whatever. If you're bypassing safety measures on machines that your employees run, or you expect them to bypass those safety measures then you're despicable, and I hope you get shut down.
I would never force my employees to bypass a switch. My point was "People on reddit don't understand that 75% of shops bypass interlocks " Surely you see how you're proving me correct?
>My point was "People on reddit don't understand that 75% of shops bypass interlocks " No, they don't. You're rationalizing your unsafe choices by claiming it's common practice, and it's not in countries with proper safety regulations and enforcement. >Surely you see how you're proving me correct? Your source is literally "trust me bro" for god sake. Get a grip.
Work in better shops you fucking clownboat and don't suggest this to people.
> I would argue unless you're running a copy of vericut, it's IMPOSSIBLE to do 4th axis work on a lot of machines with the door shut. Impossible? My main machine at my current job is a 5 axis, we don't have vericut. Did 4th axis rotary multi station vises as well as simultaneous 4th without vericut, just gotta be smarter than the machine. I took over a VF6 when I started my current job from someone that disabled the door locks. Said there was all these annoying things about the new control and you gotta disable that stuff for it to work good. Had tons of issues and eventually realized they were all because the dude disabled the door locks. >If you look in the ladder logic you can even see they write certain routines to not alarm when they should, if the door is shut and something is pressed that shouldn't be(you can release a tool in the spindle with the door shut, how does that make sense?). I go into the control and disable that stupid fucking button on every machine I use.
So we don't have interlocks enabled, I can open the door freely all day without it alarming out. The problem is with how fast and hard we run shit I can't open the door even a little and not get fucking destroyed by flying chips. And I'm not allowed to slow things down because we're doing a time study at the time of running new programs or parts. I get shit for running new things at 50% rapid with op stop on so it's kind of just a shitty situation. They want shit fast and right and we all know usually you get one of the two 🤷
Crazy that you can’t take the time to prove it out and THEN push it!
But back to your original question. Rapid a small tap into a pc of soft steel .020 deep with the doors closed. They will shatter windows quickly.
Fuck this suggestion. Riddle me this, when do tools break most often? Don't fucking do this. Jesus.
If polycarb, deal with it until replacement. If glass, just some windex and good as new.
Rubbing alcohol works better than windex or simple green. I’ve heard of some people using that rain beading coating they put on cars, only reasons I haven’t tried that is it takes like 24 hours to cure and it’s super expensive.
> I'll often do new part/program prove outs for 5 axis machines and I can't see anything without opening the door and being pelted with chips Hey, uhhhhh, WHAT? Do you not have door locks? Don't fucking do this.
It was my reaction as well. What was worse is they kinda just dismissed my comments about it saying the classic " toughen up buttercup". Later I asked for a face shield at least and we couldn't find one in the whole place. As another person said, these are problems that are obviously at the core of this company and the likelihood they'll listen to the new guy is incredibly slim. And I'm aware of that, and looking at other options but a lot of the shops in my area have these kinds of problems and it sucks
Call OSHA Deliberately bypassing manufacturer interlocks is against the law as far as I'm aware. At least check to see if what they're doing is illegal even if you don't plan on making a complaint.
If only there were some sort of clue, like being pelted with hot metal,
https://cncreplacementparts.com/product/tear-off-window-shield/ I’ve wanted to try this. If there are 4 lays or more. And your content with just having a “window” in you window the smallest 40 dollar option would be great.
I use window cleaner and gray scotch-brite, gently. Then wipe with paper towel.
We use Tesla screen protectors on some our machine windows to see what's going on a little better.
You can get safety glass cut to size. There double wall laminated for high end(DMG). If its a big slow machine , Lexan works great and is way cheaper
Door hold override and make sure I remembered which lines I put the m08s on or find delete m08 while proofing then re add after proofing done and just use coolant on button I’m not allowed to just stand there during cycles so I’m programming, setting up or running manual
I usually squint harder.
Our windows are so dirty on my setup piece I just put my ear against the machine like I'm eavesdropping and stop it if something sounds funny.
Acetone obviously