cnc machined work of art. pics

[jekbrown]

only a f'n engineer who has never cut or machined anything in his life would design something so complicated like this. ofcourse they think "you just push some buttons in a computer a hit start on a cnc machine and is done, whats so hard about that?"

or you could take it another way... as a compliment. They simply assume that you have the mad skillz to machine pretty much anything, which allows them to design stuff however they want.

j

 

[JeffHK5]

I've worked in the toolmaking/machining field for a bunch of years and if I had a dollar for every time an engineer said..." It didn't look like that when I drew it" I'd be a rich man!

We have two MoriSeki 6 Axis mills that machine similar parts to what are pictured, pics don't show how truly complex that part is!

I believe they refer to them as "fuel dispersion manifolds" , might just be what we call it?

I love your pics rdn2blazer, just don't get caught put'n them on the net ,
my employer made the entire R&D dept. sign confidentiality agreements!!

Jeff

 

[garlicbreath]

only a f'n engineer who has never cut or machined anything in his life would design something so complicated like this. ofcourse they think "you just push some buttons in a computer a hit start on a cnc machine and is done, whats so hard about that?"

I know I have worked with alot of them and that is the general concencess from an engineer about machining. "Disney Imagineers" engineers are some of the worst. I have seen and worked on parts where a surface or diameter that touches air meaning no mating part, its just the exterior of a pump body that could be plus/minus .03 or more has a plus/minus .0003 tenths .

a good cnc machine that has not been crashed will hold incredable tollerences. I did a bunch of parts for Disney that the parts were so big that the design of the part would allow the part to flex just from its own weight once it was machined. the concintricity of 4 bores that were supposed to be in line was so tight it could not be held to the .0002 tenths concintricity they required. the part moved in the machining process from the stress in the material and the removal of so much material that it was imposable to hold. only after we tried five parts and were able to hold .0005 to .001 at best did we call the engineers at Disney and say theres no way we can hold that tollerance. then they said no problem we will do a engineering order change and let it out to .002 will that work for you. they told us the mating part was way smaller then our bores so it did not matter if it ran out .002 at all.

these parts started out as 350 pound blocks of steel and weighed about 78 lbs after machining and EDM work. they took four setups to machine and about 17 hours of machine time per part not including EDM time. sorry rant off.

Nothing quite like 5 thou on a sheet metal screw hole!!!

Engineers are a funny bunch. We are always bickering with them at work.