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driving a flycutter -preferable a dual fly-cutter

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Max Johansson

Joined: 09 Jan 2006
Posts: 25
Location: Helsinki, Finland

Posted: Thu Apr 13, 2006 4:16 am Post subject: driving a flycutter -preferable a dual fly-cutter

Also do not even start to use a flycutter unless it is a twin cutter,

the difference in control from a single knife to a double knife is dramatic. 

"one who just have cut altogether 45 holes for just 9 panel instruments" 



 	  Quote: 	
		   

 <smineart(at)mahaska.org>

 

 For cutting circular holes with my flycutter, I had good 

 results chucking it into a bit brace (an antique I scrounged 

 from my Father-in-law's farm); it gives good control if not 

 too much force is applied.

 Steve Mineart, 601/vair,


	


do not archive

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_________________
Max

Max Johansson, Helsinki, Finland
Building a CH701SP-912S
on CZAW amphibian floats

Jari Kaija

Joined: 23 Feb 2006
Posts: 69

Posted: Thu Apr 13, 2006 6:28 am Post subject: driving a flycutter -preferable a dual fly-cutter

 	  Quote: 	
		   "one who just have cut altogether 45 holes for just 9 

 panel instruments" 


	


    Max! What the heck you are doing with your tools?



Okay, I use single knife version only for holes below 35mm.

Every other holes are done with two knifes hole cutter.

All holes maded without any mistakes. Oh, yes. never use 

mains powered tools with these cutters either. Those toys 

has too much power to ruin everything!

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frank.hinde(at)hp.com
Guest

Posted: Thu Apr 13, 2006 6:49 am Post subject: driving a flycutter -preferable a dual fly-cutter

I have personally used a single blade flycutter in a handheld battery

drill to cut a new 2.5" hole in the finished flying airplane, with the

panel painted upholstery and all...Worked very well if a little nerve

wracking! 



Frank

HDS 395 hours



Do not archive

 	  Quote: 	
		   "one who just have cut altogether 45 holes for just 9 panel 

 instruments"


	


    Max! What the heck you are doing with your tools?



Okay, I use single knife version only for holes below 35mm.

Every other holes are done with two knifes hole cutter.

All holes maded without any mistakes. Oh, yes. never use mains powered

tools with these cutters either. Those toys has too much power to ruin

everything!

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frank.hinde(at)hp.com
Guest

Posted: Thu Apr 13, 2006 7:11 am Post subject: driving a flycutter -preferable a dual fly-cutter

Oh yeah...and all my round holes were made with the single blade

flycutter on the drill press...This for both the 601 and the RV with its

63thou thick panel...Works great.



Frank



Do not archive 



--

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Jari Kaija

Joined: 23 Feb 2006
Posts: 69

Posted: Thu Apr 13, 2006 8:44 am Post subject: driving a flycutter -preferable a dual fly-cutter

 	  Quote: 	
		   flycutter on the drill press...


	


"Drill press". The magic word! I haven't that kind of

machine, since my workshop is a way too small for it.

Handheld battery (accu) powered works fine too. 

Normally their rpm is slow enough with reasonable power

and most of them has adjustable friction lock, what helps 

a lott, when knife stopped suddenly.

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barcusc(at)comcast.net
Guest

Posted: Thu Apr 13, 2006 9:37 am Post subject: driving a flycutter -preferable a dual fly-cutter

Cutting & Shaping

In a previous post, some said there are several ways to do it, I certainly 

agree. What worked best for me is a unibit for the corners and a Dremel with 

a cut off wheel for straight cuts, works great and is very easy to control. 

I have also used the Dremel drum type sanding wheels to smooth and finish 

the transition from straight to the radius. I consider the Dremel  to be one 

of the most versital tools I have. I also use the fly cutter for large round 

holes at very low RPM, in some cases I drill the hole under power and turn 

the fly cutter by hand to finish the hole, it is really easy to do.



Clyde Barcus

601XL, Corvair Powered



---

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steveadams

Joined: 10 Jan 2006
Posts: 191

Posted: Fri Apr 14, 2006 4:34 am Post subject: Re: driving a flycutter -preferable a dual fly-cutter

I used a single knife fly cutter in a battery drill for all of my panel holes. Most good drills have an adjustable "clutch" normally used for driving screws. set this fairly low so if the cutter catches, it stops spinning. Drill slowly with a wood block under the panel and you won't get any wobble. I was worried because of all the horror stories I had heard, but it seemed safe and easy to me without a drill press, even on smaller pieces.

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