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Countersinking Fiberglass

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kearney

Joined: 20 Sep 2008
Posts: 563

Posted: Sun Mar 01, 2009 8:05 pm Post subject: Countersinking Fiberglass

Hi



After a bit of a force break from building, I managed to put a few hours in

today. I have a Tony Sustare center console that I am fitting and am

wondering about countersinking holes in fibreglass.



The center console fits over the tunnel cover which is held in place with

flush head screws. I am wondering as to the best way to counter sink the

screws. My Cherokee has countersunk washers to hold some of the fibreglass

tail cone etc in place. Should I be using something similar on the

fibreglass console?



Inquiring minds need to know...



Les Kearney

#40643 - lots of assembly required

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Dave(at)AirCraftersLLC.co
Guest

Posted: Sun Mar 01, 2009 9:27 pm Post subject: Countersinking Fiberglass

Les,



You will want to stay with flush scews there.  It's a tight fit as-is and

protruding screws will just make it worse.



If the glass is thick enough you can countersink it.  Metal countersink

cutters get dull really fast on fiberglass, but these work great:



http://www.averytools.com/c-104-permagrit-countersinks.aspx



If the material is too thin to countersink without enlarging the hole, then

countersunk washers will help.  Countersink far enough that the head of the

screw is flush, then use the washer to essentially enlarge the head of the

screw. That'll help spread out the load and keep the fiberglass in good

shape for a long time.



Dave Saylor

AirCrafters LLC

140 Aviation Way

Watsonville, CA 

831-722-9141

831-750-0284 CL

www.AirCraftersLLC.com

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drfred(at)suddenlinkmail.
Guest

Posted: Mon Mar 02, 2009 6:05 am Post subject: Countersinking Fiberglass

Les. 



I have the same console.  I used round head screws to keep with similar 

screws on the panel.  "theme" thing I guess.  Anyway,  I don't think it 

would be a problem to hold the front part of the console on with just 

countersunk flush screws.  However, you need to think about the center 

console.  As much as I try and help some people into the airplane in the 

correct manner, a lot of weight sometimes gets put on the center arm 

rest.  People with poor mobility sometimes just cant do what is needed 

to get in and out of the plane.  It puts a lot of stress on that center 

arm rest.  So counter sinking and putting the counter sunk washers might 

be a good idea on the  center arm rest.  Just depends on the look that 

you want along the bottom edge.



Fred Williams

Les Kearney wrote:

 	  Quote: 	
		   



 Hi



 After a bit of a force break from building, I managed to put a few hours in

 today. I have a Tony Sustare center console that I am fitting and am

 wondering about countersinking holes in fibreglass.



 The center console fits over the tunnel cover which is held in place with

 flush head screws. I am wondering as to the best way to counter sink the

 screws. My Cherokee has countersunk washers to hold some of the fibreglass

 tail cone etc in place. Should I be using something similar on the

 fibreglass console?



 Inquiring minds need to know...



 Les Kearney

 #40643 - lots of assembly required

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Bldgrv10450(at)comcast.ne
Guest

Posted: Mon Mar 02, 2009 10:02 am Post subject: Countersinking Fiberglass

Fred,



How well does your overhead vent set-up work?



Paul Grimstad

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