I'd hate to have you set up my machines because you clearly have no idea what you are talking about. Machines need to be levelled and aligned regularly. Any 1st year apprentice knows this.
NEA uses Haas.
Bought NEA-15 upper, Doesn't fit.........
- Thread starter bsand
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NEA uses Haas.
Do the suppressors that you design/buikd for NEA have better QC then their rifles?
Do the floors in your shop move a lot? When our machines get installed, they get leveled, but they don't seem to really move after that. I've checked one or two out of curiosity before but..........
Could you define 'aligned' in the context of a CNC machine? Like realigning a lathe when it's turret crashes? Or checking a Vertical mill for square?
I'm long past 1st year apprentice and would love to know what I should have been doing all these years
I would say it's virtually impossible that his suppressors have worse QC than NEA
.....You should read the entire thread....
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People here will buy anything if it's cheap then they'll complain that it isn't as good as the aluminum receiver that costs three times as much or that it broke.
FTR my buddy and I bought Z marked NEA billet upper/lower sets in early 2014 from SFRC.. He runs his Spikes factory upper on it no prob.. It is pretty snug though
My set is still awaiting a custom build.. and we will see if it all works
My set is still awaiting a custom build.. and we will see if it all works
Are you joking? Levelled? you mean like with a carpenters level ? I have been setting up CNC's mills and lathes (vertical and horizontal) for the last 4 years, I make parts to tenths and have never "levelled" a machine. This includes gas turbine blades for siemens, and impellers for gas turbines, drive shafts for ROV's and parts for a medical robot called Amadeus. Five of the pulleys I made for that job all fit side by side on a dime at once. when the machine is installed by the millwrights it gets leveled but not after that. How hard are you crashing these machines that you are knocking the table out of alignment?. I run an indicator from the spindle to the fixture when it gets installed and then at set up. I have never had to do more than tap the fixture till it runs 0-0. Haas machines are cheap Sh!t machining centers by the way.
My lower is in spec. The keyhole cerro forge upper I got fits super tight that i had to use a 1" brass hammer to completely seat the pin. Other than that it fits great!
He's smarter than us. I think it's time we check out.
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No, levelled and squared with a precision machinist level. You know, the hand scraped ones? You've "setup" machines, you should know what a precision level is.
Depending on your floor, concrete will move with the seasons, settle or heave. Crashes aren't the only reason to check machine tools for level and square. Ask your millwrights, they probably do a periodical inspection with the maintenance cycle. Or at least they should.
It sounds to me like your "4 years of setting up machines" is actually setting up fixtures on machines that are already set. Big difference.
Finally, Haas is what it is. They are capable machines as long as you don't try to run them like a Mazak or similar.
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Gunnerlove
CGN Ultra frequent flyer
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Whenever we get FSRs out they confirm level, because how can you have an accurate, parallel machine with a twist in it. Hell a rusted floor shim can skew and rack a machine and if a 20 ton block of synthetic granite can twist with the floor anything can.
I never ceased to amaze me how much I could move a 5 ton casting with just light wrench pressure on a half inch push bolt.
Travis Bickle
CGN Ultra frequent flyer
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I always am skeptical about people trashing brands on the interwebs like NEAS always was. So I always took it with a grain of salt.
Then I had my first hands on experience with their "quality".
My friend came over with his NEA rifle to put a new Free float style NEA hand gaurd onto his NEA upper. The ones with the clearance channel for the barrel nut sprockets in it to just twist it off and on.
I got everything lined up (I have put on many an AR15 barrel with zero issues ever) started torquieing the NEA barrel nut to proper spec and a couple of the teeth on the NEA nut literally popped right off! I hadn't even gotten to the 30lb minumum!
The metal inside looked like cheap chinese pot metal. Full of air pockets etc.
When we finally got what was left of the nut on properly, the NEA handgaurd was contacting the sprockets (what was left of them lol) on the nut. Once we sorted that out, it still wouldn't rotate properly to where it had to go or lock in place. A slight amunt of pressure to get it to seat ended up popping off the "rotate stop" nub on the handgaurd just like the barrel nut sprockets. Again cheap "pot metal" style metal inside.
Unbelievable.....
Then I had my first hands on experience with their "quality".
My friend came over with his NEA rifle to put a new Free float style NEA hand gaurd onto his NEA upper. The ones with the clearance channel for the barrel nut sprockets in it to just twist it off and on.
I got everything lined up (I have put on many an AR15 barrel with zero issues ever) started torquieing the NEA barrel nut to proper spec and a couple of the teeth on the NEA nut literally popped right off! I hadn't even gotten to the 30lb minumum!
The metal inside looked like cheap chinese pot metal. Full of air pockets etc.
When we finally got what was left of the nut on properly, the NEA handgaurd was contacting the sprockets (what was left of them lol) on the nut. Once we sorted that out, it still wouldn't rotate properly to where it had to go or lock in place. A slight amunt of pressure to get it to seat ended up popping off the "rotate stop" nub on the handgaurd just like the barrel nut sprockets. Again cheap "pot metal" style metal inside.
Unbelievable.....
The handguard that came with the upper looked good quality but I've never seen another quad rail up-close. But yeah the way it attaches is stupid but I guess its the only way to have it not loose (like previous generation)
I don't install machines, that is what millwrights are for. I have never crashed a machine in rapid, why would you run the rapid at 100% until you have proved the setup?. at 100% it probably would hit pretty hard, never seen it though.
This is why I sent my upper back to NEA to have them do it. They initially sent me the new rail/nut, after they told me the new rail would fit the old nut.
Ah, no. It goes on, but is not solid. It will not tighten down enough on the old nut. So off it went to have them do it, and they did.
The new rail is much better than the old one, I will say that.
However, the only lower it will fit is, my dear readers, NEA.
Ah, no. It goes on, but is not solid. It will not tighten down enough on the old nut. So off it went to have them do it, and they did.
The new rail is much better than the old one, I will say that.
However, the only lower it will fit is, my dear readers, NEA.
My guess is that what you are talking about is not the same as what I am talking about. I don't install machines. I load programs, modify them, load all the tools measure the tools, set the work offsets, set the wear offsets and geometry offsets, load fixtures, cut the jaws, then run the program in single block with the offsets backed off then measure the part and move the offsets in to cut the part to size. when i have the time I take all the "air cutting" out and play with the rates and depths of cut until the metal chips well. When I am really lucky i get to make fixtures and parts on the manuals and program (I prefer cutting to programming).
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