I think I would grow a beard and suddenly have breathing difficulty if I heard that project was coming.Tyvek suit, respirator, cover entire machine, plenty of ventilation, very carefully clean up. Double bag waste. Not sure how you dispose of waste. I did it in the navy yard, had a environment hygienist with me the entire time with air monitoring, was a big deal. I was the only qualified person out of 400 machinists because I was respirator certified.![]()
Whoa, are you nuts? Beryllium is way more reactive than even magnesium and makes aluminum look damned near inert. ANY oxygen in the casting environment will create beryllium oxide, which will turn into dust and smoke and well, kill you, slowly. But even if you can purge all the oxygen, any nitrogen present will create beryllium nitride at casting temperatures with the same end results....casting ... pure Beryllium. Any suggestions...?
I haven't seen us come together on something so consistently.All this negativity.
I can't believe it.
Where is the DIY spirit?
Pussies.and a bandana for lung protection.
( My FIL witnessed this happening ~75 years ago )
Someone will be posting about the nanny state anytime now.....I haven't seen us come together on something so consistently.
You might be less at risk if you got a job unloading boxcars of loose asbestos fiber with a shovel while wearing regular work clothes and a bandana for lung protection.
( My FIL witnessed this happening ~75 years ago )
Clearly he's building a rocket ship.![]()
I'm assuming you're familiar with the book "Ignition!"The highly dangerous things I won't mess with, in order:
1. Beryllium
2. Asbestos
3. Great White Sharks
4. PVC air lines
5. Badgers
6. Pissed off wife
and so on.
And I mess with explosives almost daily at work....
You might be less at risk if you got a job unloading boxcars of loose asbestos fiber with a shovel while wearing regular work clothes and a bandana for lung protection.
( My FIL witnessed this happening ~75 years ago )
The only place I can think of where people mess with machining beryllium metal is to make the neutron reflectors in nuclear weapons. Hard to imagine what other use would be worth the risk.Interesting blog. Makes one wonder what’s being experimented in lots of dark labs around the world.
I think it was Ross who made two beryllium bikes for racing, they were stolen and I don't know if they were ever recovered. This was in the early 1990's.I have seen and handled a beryllium bicycle, and yeah, that was crazy light (it made a titanium frame feel heavy - this was before the days of carbon fiber in the industry).
That was 30 years ago. I didn't mind it took a whole day to do less than 30 minutes work. I thought it was great, I had multiple air monitors and the hygienist had them too. Beryllium copper is easy to machine and I don't recall any dust.I think I would grow a beard and suddenly have breathing difficulty if I heard that project was coming.
Beryllium copper is a different animal than pure BerylliumThat was 30 years ago. I didn't mind it took a whole day to do less than 30 minutes work. I thought it was great, I had multiple air monitors and the hygienist had them too. Beryllium copper is easy to machine and I don't recall any dust.
When we were in our vocational school back in the late 70’s they had the brilliant idea to have us demolish the old welding booths and then build new ones. We busted out the old asbestos walls and then later cut ones for the new booths using a skill saw while wearing the most flimsy particle masks money can buy. I wonder how many of us have died so far?I've seen this - twice - once when I was a little kid, my granddad used to blow our brake drums of all that nasty chalky dust, assigned that crappy job to me at about age 5, and when I started hacking up a lung waaaaaay back then, he tied a damp bandana around my face and said "this will help". Mind you, he died of Meso when he was 70, and I (at 61) have lung issues... The second time was working some ROP "youth employer" scam in high school restoring houses (at least I learned lath and plaster - cool skill I still use!), and one rather cute (and probably dead) stud duck of all of 18 was cutting sheets of asbestos to put behind kitchen backsplashes and gas fired heater rebuilds - ... with a sidewinder saw... dust effing EVERYWHERE and his "respiratory protection" was (diggit) a wet bandana around his mouth and nose...
Did I mention I knew parents of friends when I was a kid who smoked KENT cigs with their patented Micronite filters, which were ******* pure asbestos, and are all now dead as doornails from that... Should have smoked them using pure beryllium cig holders....
At least I know if I get caught in a fire, my lungs won't burn from all the damned asbestos dust over the years..... there ARE times asbestos is a great thing, but by God you gotta be careful with it!!
The highly dangerous things I won't mess with, in order:
1. Beryllium
2. Asbestos
3. Great White Sharks
4. PVC air lines
5. Badgers
6. Pissed off wife
and so on.
And I mess with explosives almost daily at work....
Magneseum doesn't even compareClearly those are not in order of most danger.
What about Magnesium?
Alloys are different than pure. Pure is wildly dangerous. Low content alloys are only 2-3%Plenty of engines used beryllium alloys in their valve seats - I've never once seen precautions taken when cutting the seats.
Beryllium has incredible material properties as an alloying element in metals. Crazy high stiffness to weight
And it's used in the James Webb mirrors, and the oxide was used a lot for high voltage insulators where high thermal conductivity was needed (I have some high power MOSFETs with BeO insulators), but that use is being phased out. BeO is sometimes found in magnetrons (in microwave ovens) for the same properties.Plenty of engines used beryllium alloys in their valve seats - I've never once seen precautions taken when cutting the seats.
Beryllium has incredible material properties as an alloying element in metals. Crazy high stiffness to weight
Alloys are different than pure. Pure is wildly dangerous. Low content alloys are only 2-3%
And it's used in the James Webb mirrors, and the oxide was used a lot for high voltage insulators where high thermal conductivity was needed (I have some high power MOSFETs with BeO insulators), but that use is being phased out. BeO is sometimes found in magnetrons (in microwave ovens) for the same properties.

My father worked in the engine room of a destroyer when he was in the Navy, all his buddies that worked with himYou might be less at risk if you got a job unloading boxcars of loose asbestos fiber with a shovel while wearing regular work clothes and a bandana for lung protection.
( My FIL witnessed this happening ~75 years ago )