Really important topic that I feel goes undernoticed by people. Can you do more on these relating to air quality and chemical exposures (coolants, solvents etc) so that way the more people learn the more informed decisions they can make!
Lots of operators love to blow off parts for 30+ seconds with the air gun full blast. The best is when guys wear headphones thinking they are protecting their hearing while also listening to music and have the music cranked to 100db for 8 hours
My teacher spends *at least* half his day blowing air at parts to knock chips away from the tools. I'm the only one in the shop who wears hearing protection and consequently the only one who can hear once everything is quiet and my earplugs are out.
I just started weating 3m peltor tactical 500's, they are big over the ear style muffs with microphones and speakers in them. They play back the sounds of the shop at a safe level, it can hear voices more clearly with them like they are a hearing aid.
Such great information in a really practical format. I will need to listen to this multiple times. Thanks Haas (and Mark & crew) for producing valuable videos like this.
My boss pays for custom made hearing protection for every production employee. They are 200€ a pair and made from 3d printed acrylic (they take an imprint of your ear canal and scan/print that so that you can change a sound filter for varying degrees of protection while) They are way better because they are way easier to use and with the right filter you can still understand your coworkers and don't have to pull out your earplug to hear what he has to say with your oily fingers.
I've done yesterday morning my yearly physical and have also had my ears tested: so far i can still hear every frequency range from the test. By the by, been working in a workshop since 1999, i'm 41 years old and currently work 10 hrs daily next to a mill (Mikron) or lathe (CMT). I ALWAYS have with me, whenever i go out ANYWHERE, a pair of triple flange earplugs (in my honest opinion and experience, these are the best also because they have a small stick in its axis so you touch that instead of the flange itself, extremely useful as it doesnt dirty the flanges that go inside your ears) When i attend some Zumba public events i always use these earplugs as the music is stupidly loud. When i've attended the Zumba Basic Steps 1 Instructor course with the earplugs on i could see the pains on the other (pretty hot female) instructors, especially those directly under the loud speakers. Makes me wonder what's the point of looking seemingly fit yet with hearing problems...
I agree, the 'sticks' (rigid core) really helps to aim and push the earplug in the correct amount. Unless you roll the foam ones exactly, they don't go in well, not to mention getting them dirty with your grimy hands.
Someone here in the factory just asked about Earbuds, and if they helped. The short answer is no, they can make things worse! Check out this article online: www.pinnacol.com/news/do-earbuds-reduce-workplace-noise - Mark, Haas Tip-of-the-day
Thanks for this video, this is a very important information that I didn't know, then I have a question: What about breathing the refrigerant mist or the metal fumes, and more when opening the doors of the machine at the end of machining? Is there any harm to health?
So I'm screwed then? I've been blowing loud air guns and hearing loud machining noises all day for 4 years i never use protection...havent noticed any damage but maybe I should start using them
Jak & Skills MVP - I know, right? Me too. The machinist I sit next to is near deaf in one ear, so he said he didn’t need hearing protection (ears already bad), but that is exactly when you really need to protect what you have left. We can be around air guns, just not too long. Doing the math, with the whole Time Weighted Averages TWA, is kind of wonky. There is a calculator online that I like: www.noisemeters.com/apps/occ/help/twa-calculator.asp - Mark, Haas Tip-of-the-day
As a machinist and shop owner.....this topic has been quite a struggle. It is quite a challenge to get any of my people to properly use ear plugs. I have tried and tried to explain why and how to use them - but still see them just barely inside the ear. Not sure how to deal with people that just don't listen or care. This is personal protection, how can I 'tell' someone to care about their hearing? I can't.
Factory400 Maybe they cant hear you. Just joking. I have made it compulsary for everyone to wear ear protection once they are within the boundary of our machine shop.
I hate ear plugs they are painful and wasteful, I use the 3M Peltor with gel ear pads, expensive but man they keep noise levels down, somewhat comfortable, only issue is ears get sweaty when it's hot, I already have tinnitus so to not make it worse I always use them, if you a fan or AC shop then that protection should be mandatory or fire them. Not cheap but effective.
What about those ear muffs with built-in headphones? If the music is low enough to hear the (100db) machine does that mean that the SPL at the ear is 100 minus rating of earmuffs, i.e. about 75db? What about if music is actually louder to the ear than the machine? Does that mean that protection of ear muffs is practically cancelled out?
I like to be able to hear what my tool is doing. Wearing ear protection and standing in front of my machine, while not being able to hear anything makes me nervous.
There is a bit of information here I feel needs annotation. Doubling the distance. drops the sound level by 6 Db approximately... in an open environment where the sound diffuses, in a closed environment. reverberation can keep the sound pressures higher. so that's not always a good approach to think you're far enough, when the sounds reverberating inside of a smaller building or production cell. so really. just get some good hearing protection.
Also technically, the "sound pressure" changes he described are the sound energy, not pressure. The energy is proportional to the square of the pressure. So 10 db is a 10-fold change in sound energy, while 20 db is a 10-fold change in sound pressure. But it is still true that prolonged noise will damage hearing, and "prolonged" could mean several hours in a day, or a period of years where hearing gradually deteriorates. I tried to wear sealed audio headphones to listen to the radio without raising the sound level in my soft-top Jeep, but it turns out the audio jack in my radio is an input to play sounds from a cell phone, not a headphone output jack, so that didn't work! Just regular noise reduction headphones help a lot, if I crank up the radio volume above the wind noise they reduce everything so I hear the radio at a reasonable volume. Or leave the radio off and reducing wind noise is very helpful.
dcraig4 - The Roll Model is a 3M product. Here is a link to the page on the 3M website: www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-E-A-R-Roll-Model-319-1003-1-EA-Case/?N=5002385+3294755217&rt=rud. Haas Automation
Dcraig4 - I bought mine at www.earplugstore.com/3m-ear-319-1003.html. If the Roll Model is backordered, you can always make your own out of acrylic! The depth of the holes is .48” (12mm), the diameters are Good:.26” (6.5mm), Better: .24” (6.0mm), Best: .22” (5.5mm), and Amazing!: .20” (5.0mm). Follow the link in the Description for a printable version of the Roll Model - Mark, Haas Tip-of-the-day
Jens - It depends on the cut being taken. Most machining operations are well under our 85 dBA average threshold value. Being next to more than one machine might increase the overall dB rating by a few dB as well, more sound pressure. And remember, that air-gun can cause unsafe dBA levels, typically higher than any of your machines. Grab a Sound Level App for your phone and see how things look in your shop. - Mark, Haas Tip-of-the-day
@@haasautomation Thank you Mark, and thanks for the great videos. We are about to invest in a TMx-P series machine for prototype/small production work for a few hours per week. Our production workshop has common thin walls with office based businesses, so we are more concerned with them throwing knives at us.
I always look forward to the "tip of the daY' videos, but the background music in this video is very distracting and lends nothing to the great information.
Really important topic that I feel goes undernoticed by people. Can you do more on these relating to air quality and chemical exposures (coolants, solvents etc) so that way the more people learn the more informed decisions they can make!
Calvin Witt Strongly second this.
I second this request on air quality/ chemical exposures! Great video
This is something that everyone over looks and just try’s to toughen up about including myself. Thank you for the huge eye opener!
Lots of operators love to blow off parts for 30+ seconds with the air gun full blast. The best is when guys wear headphones thinking they are protecting their hearing while also listening to music and have the music cranked to 100db for 8 hours
My teacher spends *at least* half his day blowing air at parts to knock chips away from the tools. I'm the only one in the shop who wears hearing protection and consequently the only one who can hear once everything is quiet and my earplugs are out.
I just started weating 3m peltor tactical 500's, they are big over the ear style muffs with microphones and speakers in them. They play back the sounds of the shop at a safe level, it can hear voices more clearly with them like they are a hearing aid.
What an important piece of hearing Information !
Keep posting such videos and just lovin this Haas Tip Of The Day Series .
Such great information in a really practical format. I will need to listen to this multiple times. Thanks Haas (and Mark & crew) for producing valuable videos like this.
This channel has great videos for learning English and knowledge. Thank you.
My boss pays for custom made hearing protection for every production employee. They are 200€ a pair and made from 3d printed acrylic (they take an imprint of your ear canal and scan/print that so that you can change a sound filter for varying degrees of protection while) They are way better because they are way easier to use and with the right filter you can still understand your coworkers and don't have to pull out your earplug to hear what he has to say with your oily fingers.
Noël Bressan Same at me! And they are really comfortable, are yours also from Neuroth Gmbh?
Mine are from Cotral, they look pretty much the same except mine are solid blue instead of clear.
The video is very good, it would be great to include subtitles as other videos
I've done yesterday morning my yearly physical and have also had my ears tested: so far i can still hear every frequency range from the test. By the by, been working in a workshop since 1999, i'm 41 years old and currently work 10 hrs daily next to a mill (Mikron) or lathe (CMT).
I ALWAYS have with me, whenever i go out ANYWHERE, a pair of triple flange earplugs (in my honest opinion and experience, these are the best also because they have a small stick in its axis so you touch that instead of the flange itself, extremely useful as it doesnt dirty the flanges that go inside your ears) When i attend some Zumba public events i always use these earplugs as the music is stupidly loud. When i've attended the Zumba Basic Steps 1 Instructor course with the earplugs on i could see the pains on the other (pretty hot female) instructors, especially those directly under the loud speakers. Makes me wonder what's the point of looking seemingly fit yet with hearing problems...
I agree, the 'sticks' (rigid core) really helps to aim and push the earplug in the correct amount. Unless you roll the foam ones exactly, they don't go in well, not to mention getting them dirty with your grimy hands.
This tip is extremely important and I hope people will listen to it. (Pun intended)
Someone here in the factory just asked about Earbuds, and if they helped. The short answer is no, they can make things worse! Check out this article online: www.pinnacol.com/news/do-earbuds-reduce-workplace-noise - Mark, Haas Tip-of-the-day
The irony is, I'm having difficulty hearing this video because it's loud here.
Mark, great video, thanks. But, what's the name of the buffing compound you used for your dome? I need it for... scientific reasons.
Pieter Ouborg - Why do people keep asking me this? Folks should know that I’ve signed Non-Disclosures. :) - Mark, Haas Tip-of-the-day
Very important tip and very educational.
Great job! With the Ultimate Warrior photo....
Thanks for this video, this is a very important information that I didn't know, then I have a question: What about breathing the refrigerant mist or the metal fumes, and more when opening the doors of the machine at the end of machining? Is there any harm to health?
I’m really curious about this. In the shop I use synthetic coolant and usually the mist makes me cough like crazy.
*the loud decimals i get from my wife will be the death of my hearing*
Very important tip. And very very true
I got msa active protection with gel cups. Amazingly good fit and works. Tho the active part is useless in workshop environment.
So I'm screwed then? I've been blowing loud air guns and hearing loud machining noises all day for 4 years i never use protection...havent noticed any damage but maybe I should start using them
Jak & Skills MVP - I know, right? Me too. The machinist I sit next to is near deaf in one ear, so he said he didn’t need hearing protection (ears already bad), but that is exactly when you really need to protect what you have left. We can be around air guns, just not too long. Doing the math, with the whole Time Weighted Averages TWA, is kind of wonky. There is a calculator online that I like: www.noisemeters.com/apps/occ/help/twa-calculator.asp - Mark, Haas Tip-of-the-day
thanks! your right definitely protect what we have left!
As a machinist and shop owner.....this topic has been quite a struggle. It is quite a challenge to get any of my people to properly use ear plugs. I have tried and tried to explain why and how to use them - but still see them just barely inside the ear.
Not sure how to deal with people that just don't listen or care. This is personal protection, how can I 'tell' someone to care about their hearing? I can't.
Factory400 Maybe they cant hear you. Just joking. I have made it compulsary for everyone to wear ear protection once they are within the boundary of our machine shop.
I hate ear plugs they are painful and wasteful, I use the 3M Peltor with gel ear pads, expensive but man they keep noise levels down, somewhat comfortable, only issue is ears get sweaty when it's hot, I already have tinnitus so to not make it worse I always use them, if you a fan or AC shop then that protection should be mandatory or fire them. Not cheap but effective.
I like these videos and this was the best ever.
What about those ear muffs with built-in headphones? If the music is low enough to hear the (100db) machine does that mean that the SPL at the ear is 100 minus rating of earmuffs, i.e. about 75db? What about if music is actually louder to the ear than the machine? Does that mean that protection of ear muffs is practically cancelled out?
I like to be able to hear what my tool is doing. Wearing ear protection and standing in front of my machine, while not being able to hear anything makes me nervous.
They make ear plugs with different size pin holes for selectable volume reduction.
Well done Mark, but I couldn’t hear about half of what You said. “How about some closed Captions”
There is a bit of information here I feel needs annotation. Doubling the distance. drops the sound level by 6 Db approximately... in an open environment where the sound diffuses, in a closed environment. reverberation can keep the sound pressures higher. so that's not always a good approach to think you're far enough, when the sounds reverberating inside of a smaller building or production cell. so really. just get some good hearing protection.
Also technically, the "sound pressure" changes he described are the sound energy, not pressure. The energy is proportional to the square of the pressure. So 10 db is a 10-fold change in sound energy, while 20 db is a 10-fold change in sound pressure. But it is still true that prolonged noise will damage hearing, and "prolonged" could mean several hours in a day, or a period of years where hearing gradually deteriorates.
I tried to wear sealed audio headphones to listen to the radio without raising the sound level in my soft-top Jeep, but it turns out the audio jack in my radio is an input to play sounds from a cell phone, not a headphone output jack, so that didn't work! Just regular noise reduction headphones help a lot, if I crank up the radio volume above the wind noise they reduce everything so I hear the radio at a reasonable volume. Or leave the radio off and reducing wind noise is very helpful.
Hey man. I would love to meet you in person. Thank you very much.
Any idea where you can actually get the Roll Model?
dcraig4 - The Roll Model is a 3M product. Here is a link to the page on the 3M website: www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-E-A-R-Roll-Model-319-1003-1-EA-Case/?N=5002385+3294755217&rt=rud. Haas Automation
Dcraig4 - I bought mine at www.earplugstore.com/3m-ear-319-1003.html. If the Roll Model is backordered, you can always make your own out of acrylic! The depth of the holes is .48” (12mm), the diameters are Good:.26” (6.5mm), Better: .24” (6.0mm), Best: .22” (5.5mm), and Amazing!: .20” (5.0mm). Follow the link in the Description for a printable version of the Roll Model - Mark, Haas Tip-of-the-day
1:18 Holy shit balls. How much coffee did your video editor have?
How loud is a Haas machining centre in general while milling if the doors are closed?
Are we talking 70DB, 80DB, 90DB.......
Jens - It depends on the cut being taken. Most machining operations are well under our 85 dBA average threshold value. Being next to more than one machine might increase the overall dB rating by a few dB as well, more sound pressure. And remember, that air-gun can cause unsafe dBA levels, typically higher than any of your machines. Grab a Sound Level App for your phone and see how things look in your shop. - Mark, Haas Tip-of-the-day
@@haasautomation Thank you Mark, and thanks for the great videos. We are about to invest in a TMx-P series machine for prototype/small production work for a few hours per week.
Our production workshop has common thin walls with office based businesses, so we are more concerned with them throwing knives at us.
I like using radio headphones. But I listen to my music way too loud so it kinda defeats the purpose
tip: pull the ear upward while inserting the plug with the other hand... lot easier to insert
Daniel Machado - Brazil.
When you notice that your hearing is getting worse, it's already too late.
Can anyone else hear the back ground music?
G 81 G82
I get ear infections from plugs lol
I always look forward to the "tip of the daY' videos, but the background music in this video is very distracting and lends nothing to the great information.