Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Question - Countersinking Wing Spar

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV7-List
View previous topic :: View next topic  
Author Message
sshook(at)cox.net
Guest





PostPosted: Sat Mar 11, 2006 7:17 am    Post subject: Question - Countersinking Wing Spar Reply with quote

I have come to the point where its time to CS the main spar and the #30 Countersink that is recommended by the plans seems to run out of blade before it makes the CS hole deep enough for the #8 screw.  My test piece that I am using is dimpled correctly.  I have the 3-blade CS set from Cleaveland.
PS) I already have made myself a pilot out of a scrap 1/8 aluminum stock.  That part works great
Any help would be appreciated.
Scott
N696JS – Wings


- The Matronics RV7-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:

http://www.matronics.com/Navigator?RV7-List
Back to top
dan(at)rvproject.com
Guest





PostPosted: Sat Mar 11, 2006 7:50 am    Post subject: Question - Countersinking Wing Spar Reply with quote

Oh, also, get yourself a c-sink cutter with a larger diameter.  Sorry, I misread your question at first.  A larger diam cutter will fix the problem.
 
)_( Dan
 
[quote] ---


- The Matronics RV7-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:

http://www.matronics.com/Navigator?RV7-List
Back to top
dan(at)rvproject.com
Guest





PostPosted: Sat Mar 11, 2006 7:50 am    Post subject: Question - Countersinking Wing Spar Reply with quote

Follow the instructions.  Rivet the nutplates first they will serve to center the pilot.
 
When I built mine I didn't trust that.  I could have.  I wasted all sorts of time using a backup strip with a pilot centering hole.  Worked fine but took too long.  Could have done it in less than half the time -- by (a) following the plans, and (b) using a ball bearing microstop cage rather than the cheap bushing version that came with my Avery kit (I upgraded to a ball bearing cage from Avery eventually).
 
)_( Dan
RV-7 N714D (833 hours)
http://www.rvproject.com
[quote] ---


- The Matronics RV7-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:

http://www.matronics.com/Navigator?RV7-List
Back to top
sshook(at)cox.net
Guest





PostPosted: Sat Mar 11, 2006 9:21 am    Post subject: Question - Countersinking Wing Spar Reply with quote

I have a 3/8 #40 pilot, 3/8 #30 pilot, a 7/16 #27 pilot and a 7/16 #19 pilot.  I moved up to the 7/16 #27 pilot but did not try it with the nutplate installed.  I just enlarged my homemade “tool” a bit to accommodate the pilot.
Scott
N696JS – Wings

From: owner-rv7-list-server(at)matronics.com [mailto:owner-rv7-list-server(at)matronics.com] On Behalf Of Dan Checkoway
Sent: Saturday, March 11, 2006 8:50 AM
To: rv7-list(at)matronics.com
Subject: Re: Question - Countersinking Wing Spar

 
Oh, also, get yourself a c-sink cutter with a larger diameter.  Sorry, I misread your question at first.  A larger diam cutter will fix the problem.

 

)_( Dan

 
[quote]
---


- The Matronics RV7-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:

http://www.matronics.com/Navigator?RV7-List
Back to top
sshook(at)cox.net
Guest





PostPosted: Sun Mar 12, 2006 4:06 pm    Post subject: Question - Countersinking Wing Spar Reply with quote

Thanks for the follow-up Dan.  Worked perfect!!  I rechecked my test dimple and the skin was slightly off.  I was able to complete both spars’ countersinks yesterday.
 
 


From: owner-rv7-list-server(at)matronics.com [mailto:owner-rv7-list-server(at)matronics.com] On Behalf Of Dan Checkoway
Sent: Saturday, March 11, 2006 8:49 AM
To: rv7-list(at)matronics.com
Subject: Re: Question - Countersinking Wing Spar

 
Follow the instructions.  Rivet the nutplates first they will serve to center the pilot.

 

When I built mine I didn't trust that.  I could have.  I wasted all sorts of time using a backup strip with a pilot centering hole.  Worked fine but took too long.  Could have done it in less than half the time -- by (a) following the plans, and (b) using a ball bearing microstop cage rather than the cheap bushing version that came with my Avery kit (I upgraded to a ball bearing cage from Avery eventually).

 

)_( Dan

RV-7 N714D (833 hours)

http://www.rvproject.com
[quote]
---


- The Matronics RV7-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:

http://www.matronics.com/Navigator?RV7-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV7-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
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
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group