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3D Heli Depot . JR-Spektrum . Gyro Hobbies

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Century Hawk - Falcon - Raven - Predator > Hawk IV: Bolt sizes?
 
 
ncostes
Veteran
Location: US

I'd like to stock bolts that I can use on my hawk iv.
Is it possible to just buy one length in the various diameters required, and just cut them to length as needed?
If so, what is better, cutting them with a bolt cutter or a dremel?
05-31-2002 Over year old.
 
 
rob_jones
Key Veteran
Location: Oglethorpe, GA

If you do cut bolts, use a dremel with an emory cutoff wheel. Thread a nut on first (below where you will cut). That way if you scrog the threads, the bolt will clean them when you unthread it. Otherwise, you may not be able to get a nut on it if the dremel leaves a burr or something.

BTW, Century uses 3MM bolts for just about everything.

-----
Team MRC Hirobo
I reject your reality and substitute my own.
05-31-2002 Over year old.
 
 
ncostes
Veteran
Location: US

bim
thanks for the info. will try this tonight.
06-01-2002 Over year old.
 
 
ncostes
Veteran
Location: US

Worked like a charm. Bought a bunch of 3x30 shouldered bolts and cut them to various sizes tonight as per instructions.
06-02-2002 Over year old.
 
 
vapor
Heliman
Location: wi

Bolts

For a cleaner cut: Chuck up the head of the bolt in a small electric drill
or drill press. Cut with dremel tool while the bolt is turning in the drill and face off the bolt at the same time.
06-02-2002 Over year old.
HOMEPAGE  
 
 
whrlybrd
Senior Heliman
Location: Little Rock, AR

Microfasteners is a great source for bolts and have reasonable prices.
06-02-2002 Over year old.
 
 
ncostes
Veteran
Location: US

Great, thanks for the info, will check them out.

re: chucking... sounds like it would definitely be better but I'm unskilled enough with the fixed target and the dremel I can see things getting ugly real quick with a rotating target
06-02-2002 Over year old.
 
 
ncostes
Veteran
Location: US

Oh yeah - microfasteners - just checked them out - cool.

What does it mean when they have 3 dimensions...

M2.5 x .45 x 3mm

And what is better to use - alloy or stainless steel?

What are the great planes screws made of?

Is it ok to use stronger/stiffer fastners or do they cause wear in what they're attached to?
06-02-2002 Over year old.
 
 
Brian Bennett
Key Veteran
Location: Dugway/Tooele UT, USA

1st number is diameter

2nd number pitch of the threads Units? mm/turn or turns/mm for metric I believe. Its a fairly standard value which increases with diameter

3rd number is length

I have used microfasteners several times. A very good source.

I prefer stainless - strong. The GP nuts a bolts I have bought were all allow ( blend of metals) and definitely easier to break, but lighter. I did a semi qualitative test of this on the 2mm dia allow and stainless from Microfasteners. because many have reported the alloy screws in the ECO 8 tail to fail at 3D rotor speeds.

--Gi
06-03-2002 Over year old.
HOMEPAGE  
 
 
z11355
rrMaster
Location: 10000 is enough time wasted.

The pitch is in mm/revolution.

For the record, the screws come in a variety of strength
'classes' w/ the strongest being '12.9'. Stainless steel screws
are significantly *less* strong that that.
06-03-2002 Over year old.
HOMEPAGE  
 
 
Brian Bennett
Key Veteran
Location: Dugway/Tooele UT, USA

Good to know!

Do know if the threads of the strongest screws are cut or cold pressed? Just Curious.

--Gi
06-03-2002 Over year old.
HOMEPAGE  
 
 
scotter
Senior Heliman
Location: Elkton, MD

alloy or stainless?

I would highly urge you NOT to use stainless. Stainless is not as strong (although it is pretty!), and will gall very easily.
06-03-2002 Over year old.
 
 
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Century Hawk - Falcon - Raven - Predator > Hawk IV: Bolt sizes?
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