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Cutting out trim tab?

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a.s.elliott(at)cox.net
Guest

Posted: Wed Jan 24, 2007 8:05 pm Post subject: Cutting out trim tab?

Gang:

  

 I'm at the point where I need to cut out the elevator trim tab from a built  elevator.  I have all the lines carefully marked and would like to hear  some technique suggestions for making these cuts.

  

 My own idea is to split or cut out the trailing edge between the end lines  (with a band saw?), cut the end lines with shears, drill out the aft two  middle-rib rivets, and finally cut the top and bottom spanwise lines by scoring  with the laminate knife and breaking out the sections.

  

 Other ideas?

  

 Andy Elliott, Mesa, AZ

N601GE (reserved)

601XL/TD/QB, Corvair,  building...

   [quote][b]

zodierocket(at)hsfx.ca
Guest

Posted: Wed Jan 24, 2007 8:25 pm Post subject: Cutting out trim tab?

http://www.ch601.org/tools.htm  

   

http://www.ch601.org/tools/olfa.htm  

   

Use the Olfa pad wan !!!!!   

     

Mark Townsend  Alma, Ontario  

Zodiac 601XL C-GOXL, CH701 just started  

www.ch601.org / www.ch701.com/ www.Osprey2.com  

  

--

p.mulwitz(at)worldnet.att
Guest

Posted: Wed Jan 24, 2007 8:44 pm Post subject: Cutting out trim tab?

Hi Andy,



Its been a while since I did that one, but here is what I think I would do now.



First, stop drill the inside corners with something like a 1/4" 

drill.  Then I would use a fairly large step drill - perhaps 3/4" or 

7/8" to make a starting point for the shears.  I would drill this in 

the waste material perhaps 1" from the final cut line.  Then it is a 

matter  of cutting with the shears.  The first cuts would leave about 

1/4" to the final cut line, and then I would work my way closer to 

the final line until I was there.  Perhaps the last few thousandths 

in some areas would be done with a file rather than the 

shears.  Clean up the edges with a smooth file and it is done.



Paul

XL fuselage



At 07:53 PM 1/24/2007, you wrote:

 	  Quote: 	
		  Gang:



I'm at the point where I need to cut out the elevator trim tab from 

a built elevator.  I have all the lines carefully marked and would 

like to hear some technique suggestions for making these cuts.



My own idea is to split or cut out the trailing edge between the end 

lines (with a band saw?), cut the end lines with shears, drill out 

the aft two middle-rib rivets, and finally cut the top and bottom 

spanwise lines by scoring with the laminate knife and breaking out 

the sections.



Other ideas?



Andy Elliott, Mesa, AZ

N601GE (reserved)

601XL/TD/QB, Corvair, building...


	


-

barcusc(at)comcast.net
Guest

Posted: Thu Jan 25, 2007 2:06 am Post subject: Cutting out trim tab?

I drilled the corners and cut it with a dremel tool  using the small cut-off wheel, it took less than 15 minutes.

  

 Clyde

 601 XL

 [quote]   ---

ccwacker(at)HOTMAIL.COM
Guest

Posted: Thu Jan 25, 2007 6:03 am Post subject: Cutting out trim tab?

I did it Paul's way and had excellent results. Using a file to home into the 

final size yeilded a perfect fit.

Chuck Wacker

N601XL Quick Build

 	  Quote: 	
		  From: Paul Mulwitz <p.mulwitz(at)worldnet.att.net>

Reply-To: zenith-list(at)matronics.com

To: zenith-list(at)matronics.com

Subject: Re: Cutting out trim tab?

Date: Wed, 24 Jan 2007 20:43:33 -0800

<p.mulwitz(at)worldnet.att.net>

Hi Andy,

Its been a while since I did that one, but here is what I think I would do 

now.

First, stop drill the inside corners with something like a 1/4" drill.  

Then I would use a fairly large step drill - perhaps 3/4" or 7/8" to make a 

starting point for the shears.  I would drill this in the waste material 

perhaps 1" from the final cut line.  Then it is a matter  of cutting with 

the shears.  The first cuts would leave about 1/4" to the final cut line, 

and then I would work my way closer to the final line until I was there.  

Perhaps the last few thousandths in some areas would be done with a file 

rather than the shears.  Clean up the edges with a smooth file and it is 

done.

Paul

XL fuselage

At 07:53 PM 1/24/2007, you wrote:

>Gang:

>

>I'm at the point where I need to cut out the elevator trim tab from a 

>built elevator.  I have all the lines carefully marked and would like to 

>hear some technique suggestions for making these cuts.

>

>My own idea is to split or cut out the trailing edge between the end lines 

>(with a band saw?), cut the end lines with shears, drill out the aft two 

>middle-rib rivets, and finally cut the top and bottom spanwise lines by 

>scoring with the laminate knife and breaking out the sections.

>

>Other ideas?

>

>Andy Elliott, Mesa, AZ

>N601GE (reserved)

>601XL/TD/QB, Corvair, building...

-

_________________________________________________________________

something more.

dbortol

Joined: 02 Sep 2006
Posts: 46

Posted: Thu Jan 25, 2007 6:28 am Post subject: Cutting out trim tab?

I did mine the same way just a few weeks ago. It worked very well. I

used a small router with a straight bit to cut away the trailing edge

and seperate the top and bottom 'skins'.



Dino Bortolin



On 1/24/07, Dr. Andrew Elliott <a.s.elliott(at)cox.net> wrote:

 	  Quote: 	
		   Gang:



 I'm at the point where I need to cut out the elevator trim tab from a built

 elevator.  I have all the lines carefully marked and would like to hear some

 technique suggestions for making these cuts.



 My own idea is to split or cut out the trailing edge between the end lines

 (with a band saw?), cut the end lines with shears, drill out the aft two

 middle-rib rivets, and finally cut the top and bottom spanwise lines by

 scoring with the laminate knife and breaking out the sections.



 Other ideas?



 Andy Elliott, Mesa, AZ

 N601GE (reserved)

 601XL/TD/QB, Corvair, building...

waj(at)quik.com
Guest

Posted: Thu Jan 25, 2007 6:33 am Post subject: Cutting out trim tab?

I also had good results doing it as Paul  described .

Wade Jones    South Texas

601XL plans building

Cont. 0200

---

Jaybannist(at)cs.com
Guest

Posted: Thu Jan 25, 2007 6:50 am Post subject: Cutting out trim tab?

Andy,



I used a combination approach.  I drilled the relief holes at the corners, made the cuts perpendicular to the trailing edge with a Dremel cut-off wheel, and the long cuts with shears as described by Paul M.



Jay in Dallas

Do not archive



 	  Quote: 	
		  >>At 07:53 PM 1/24/2007, you wrote:

>>>Gang:

>>>

>>>I'm at the point where I need to cut out the elevator trim tab from a 

>>>built elevator.  I have all the lines carefully marked and would like to 

>>>hear some technique suggestions for making these cuts.

>>>

>>>My own idea is to split or cut out the trailing edge between the end 

>>>lines (with a band saw?), cut the end lines with shears, drill out the 

>>>aft two middle-rib rivets, and finally cut the top and bottom spanwise 

>>>lines by scoring with the laminate knife and breaking out the sections.

>>>

>>>Other ideas?

>>>

>>>Andy Elliott, Mesa, AZ

>>>N601GE (reserved)

>>>601XL/TD/QB, Corvair, building...

>>

>>-

>>

>>

>>

>>

>>

>

> _________________________________________________________________

> something more.

>

>

dredmoody(at)cox.net
Guest

Posted: Thu Jan 25, 2007 8:42 am Post subject: Cutting out trim tab?

I did like Paul except that I drilled a #20 hole at each corner rather than a 1/4" hole. Then I also use a good new hacksaw to cut about 3/8" inside the cut line at the trailing edge on both sides. That makes it much easier to cut around the trailing edge with the snips.  Like Paul described, I used a large step drill inside the waste area to get started with the shears..... first cut about 1/4" inside the line, then a final cut to "save the line". Final finish with file and emory cloth.



Ed Moody II

Ron Lendon

Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI

Posted: Thu Jan 25, 2007 7:16 pm Post subject: Re: Cutting out trim tab?

Here's a link to how I did mine:



http://tinyurl.com/24fnu6



or 



http://www.mykitlog.com/users/display_log.php?user=rlendon&project=113&category=1280&log=14761&row=9

_________________
Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
https://sites.google.com/site/corvairenginedata/

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