|
|
| View previous topic :: View next topic |
| Author |
Message |
matelot
Extreme 3D
Joined: 09 Jan 2012
Posts: 106
Location: France
|
 Posted: Sun Feb 12, 2012 12:28 am
Post subject: M2 grub screws |
 |
|
Just got the T-34 fitted with two new motors and receiver - managed to bash it, and both grub screws holding the B shaft sheared. Strewth, they're small.
Anybody tried these:
2MM X 6MM STAINLESS STEEL POZI PAN M2 SCREWS A2 20 PACK
from tbwfasteners on eBay? Cheap.
The four screws holding the rotor head to the shaft are about 5mm long, and would seem to do the job when tested, so 6mm ought to be OK. Or does anybody know what the precise length should be?
Cheers
_________________
Never squat with your spurs on. |
|
| Back to top |
|
 |
solentlife
Extreme 3D
Joined: 30 Dec 2010
Posts: 872
Location: Latvia / UK
|
Posted: Mon Feb 13, 2012 2:25 pm
Post subject: |
|
|
In a lot of cases - to keep the screw within the radius of the item, second to not cause inbaance of weight.
Where possible I change to Black metal machine screws with a larger head. But these cannot be used in critical length / weight areas such as shaft collets etc.
Many of the stock grub screws supplied are soft and when tightening care has to be taken ... I have loads of them where the hex driver slips in the slot.
_________________
If you don't crash - you ain't flying !
Fast learning to be 450 Heli Repair specialist !
Have : 2ch Bumblebee,
Co-Ax Syma S006 Alloy Shark
2x Clone 450 SE V2
+ fixed wing stuff ...
Returning to RC after 20 odd yrs away .. Ex Display flyer. |
|
| Back to top |
|
|
matelot
Extreme 3D
Joined: 09 Jan 2012
Posts: 106
Location: France
|
Posted: Tue Feb 14, 2012 11:48 pm
Post subject: |
|
|
The fun will be judicious grinding to length. Oil stone?
_________________
Never squat with your spurs on. |
|
| Back to top |
|
|
tombo242
Extreme 3D
Joined: 04 Nov 2008
Posts: 3633
Location: Santo Estêvão, East Algarve, Portugal. 76, but still feels 18.
|
Posted: Wed Feb 15, 2012 5:28 am
Post subject: |
|
|
Make sure that you have a nut on the shaft before you cut/grind it to length. As you wind the nut off it will clear any burrs on the cut thread giving a better start to the screw.
Tom.
_________________
Keep Smiling  |
|
| Back to top |
|
|
matelot
Extreme 3D
Joined: 09 Jan 2012
Posts: 106
Location: France
|
Posted: Wed Feb 15, 2012 7:37 pm
Post subject: |
|
|
My usual practice. Now to hunt for a 2mm nut... 
_________________
Never squat with your spurs on. |
|
| Back to top |
|
|
tombo242
Extreme 3D
Joined: 04 Nov 2008
Posts: 3633
Location: Santo Estêvão, East Algarve, Portugal. 76, but still feels 18.
|
|
| Back to top |
|
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
|
SmartFeed
Album
