Red CNC gearbox
#1
Posted 22 July 2008 - 04:10 AM
hope this hasn't been posted yet, but here is a red cnced reinforced gearbox, is this the haynes copy?
http://www.youtube.com/user/Spartan452
http://www.airsoftforum.com/board/Spartan452-m29946.html
http://airsoft-barracks.com/forums/index.php?showuser=1175
#2
Posted 22 July 2008 - 04:17 AM
=p
NSW said:
.ɹǝʍod ɟo ǝsnqɐ uɐ sı sıuǝd ɔıʇuɐbıb ɐ buıʌɐɥ ɹoɟ uɹɐʍ uʍo ʎɯ buıɔnpǝɹ ʇɐɥʇ ǝsıɹoǝɥʇ p1noɔ ǝuo
:sʎɐs 1ɐɥsɹɐɯ_ʞpɯ
#3
Posted 22 July 2008 - 04:51 AM
Well either way I'm kinda bored with the gray mechboxes. Even the JG black ones I think are awesome, even if they are only painted.
#4
Posted 22 July 2008 - 05:31 AM
#5
Posted 22 July 2008 - 06:44 AM
Not bad, not bad at all. It's nice to see that they've gone for the "normal" V2 design, rather than the psuedo-reinforced rubbish - too much material in all the wrong places...
And, from what I remember from looking at pics of the haynes, this aint a clone of that. Hell, I'd be rather impressed if the chineese manufacturers knew that existed. This simply looks like they've got a normal V2, given it one or two little tweaks, and CNC'd it.
Still, it's likely to be better than an normal cast gearbox, and at that price,. and including those big bearings, who can argue? Yummy.
Also, can someone that knows they're Aluminium alloys tell us how good 7075 is meant to be? I've heard it around a lot before, btu I've got a seive-like mind for metals
EDIT: Meh, after a quick google, it seems to be a pretty good alloy. To Quote Wiki:
"7075 is an aluminium alloy, with zinc as the alloying element. It is strong, with good fatigue strength and average machinability, but is not weldable and has less resistance to corrosion than many other alloys. It's relatively high cost limit it's use to applications where cheaper alloys are not suitable."
So at the very least, if it is indeed 7075, then it'll be of relatively decent quality! At the VERY least, it doesn't look like it's just a CNC'd lump of pot metal
Edited by MDK_Marshal, 22 July 2008 - 06:47 AM.
{Engineering and Demolitions} {Weaponsmith} {Navigation 'Expert'} {Minigun Wanabe} {Dedicated} {Suppression Fire Specialist} {Pyromaniac} {Customizer} {Hippie} {Discard after use - 5 times} {Drill Sergeant} {Rock with your Glock} {I mean business} {Silicon mouth}
#7
Posted 22 July 2008 - 10:12 AM
Has anyone actually bought one yet or do we know if it has been cast and then machine finished?
GuzziHero said:
OP Morning After 6.5, You don't know man, You weren't there!

Lees Precision Engineering
#8
Posted 22 July 2008 - 02:27 PM
This one
http://www.arniesairsoft.co.uk/forums/inde...p;#entry1831101
Edited by Crimson, 22 July 2008 - 02:28 PM.
WANTED:
MSA Sordins any spec with mic
I have monies !
For sale:
Multicam SAPI for crye precision chassis look
VFC KAC PDW, WE CQBR
Guides/Videos:
MOSFET GUIDE
#9
Posted 22 July 2008 - 02:41 PM
I'll get my coat....
R.I.P Pvt Conrad Lewis 3rd Battalion The Parachute Regiment - A hero and a friend.
And when he gets to Heaven, to St Peter he shall tell: "One more soldier reporting sir. I've served my time in hell."
Silent_Assassin, on Nov 4 2009, 09:47 PM, said:
Josh
#10
Posted 22 July 2008 - 04:35 PM
Not bad, not bad at all. It's nice to see that they've gone for the "normal" V2 design, rather than the psuedo-reinforced rubbish - too much material in all the wrong places...
And, from what I remember from looking at pics of the haynes, this aint a clone of that. Hell, I'd be rather impressed if the chineese manufacturers knew that existed. This simply looks like they've got a normal V2, given it one or two little tweaks, and CNC'd it.
Still, it's likely to be better than an normal cast gearbox, and at that price,. and including those big bearings, who can argue? Yummy.
Also, can someone that knows they're Aluminium alloys tell us how good 7075 is meant to be? I've heard it around a lot before, btu I've got a seive-like mind for metals
EDIT: Meh, after a quick google, it seems to be a pretty good alloy. To Quote Wiki:
"7075 is an aluminium alloy, with zinc as the alloying element. It is strong, with good fatigue strength and average machinability, but is not weldable and has less resistance to corrosion than many other alloys. It's relatively high cost limit it's use to applications where cheaper alloys are not suitable."
So at the very least, if it is indeed 7075, then it'll be of relatively decent quality! At the VERY least, it doesn't look like it's just a CNC'd lump of pot metal
Just copying from the appendix of a book on my desk:
7075-T6 (UNS A97075)
Tensile Strength: 83 ksi
Yield Strength: 73 ksi
Elongation %: 11
Hardness, HV (Vickers): 150
Mod of Elast. : 10.4 x 10^6 psi
I can add the physical properties if anyone cares.
Edited by bnoji, 22 July 2008 - 04:36 PM.
#11
Posted 22 July 2008 - 07:22 PM
George Orwell
#12
Posted 23 July 2008 - 12:18 AM
#13
Posted 23 July 2008 - 12:37 AM
Which is pretty meaningless. Aircraft grade aluminum is nothing but a marketing buzzword now.
#14
Posted 23 July 2008 - 03:45 AM
Strong >>>>> weak
T6,T4 is tempering(T) mean the Heat treatment make the strong.
p.s: US Mil-spec is the 7075-T6 and AL6061-T6 with hard coating for recevier and tactical handguard
Edited by lee1hy, 23 July 2008 - 04:00 AM.
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users






















