VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #31  
Old 12-07-2019, 09:25 AM
JonJay's Avatar
JonJay JonJay is offline
 
Join Date: Jan 2007
Location: Battleground
Posts: 4,348
Default

Scotchbrite won?t take out the punch/shear marks. One pass with a file will. Not sure it is necessary but I am from the school that all ?mill marks? are to be removed. (The Italian?s where from a different school. You can see every drop and path from the mill of the spar caps, but no airframes where ever lost).

?Break? the burred edge with whatever method you choose. You just want the burr gone (finger test).

The bigger issue I see is over de-burred holes. Again, you just want to break the edge, not chamfer the hole.

I have seen a lot of RV?s that didn?t appear to have any edge work done at all. Sharp edges everywhere, but I have yet to see any cracks as a result. I usually see ?other? build issues in those airframes.
Edge treatment is one of the first things I look at. It shows an attention to detail, and one would hope the builder followed suit elsewhere.
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.

RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
Reply With Quote
  #32  
Old 12-07-2019, 01:43 PM
brad walton brad walton is offline
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 524
Default

+1 for 90* die grinder and with 3M roloc surface conditioning discs. I use blue for most applications and maroon to remove more material. It really does a nice job .
Reply With Quote
  #33  
Old 12-07-2019, 02:27 PM
rv9builder rv9builder is offline
 
Join Date: Jan 2005
Location: Irvine, CA
Posts: 869
Default

+2 for 3M Roloc surface conditioning discs. Although I also have 1", 2" and 6" ScotchBrite wheels, I usually start with a file and finish with a blue Roloc disc.
__________________
Mark
RV-12iS Fuselage
RV-9A Project: Sold

VAF donation made for 2020
Reply With Quote
  #34  
Old 12-07-2019, 02:36 PM
fl-mike's Avatar
fl-mike fl-mike is online now
 
Join Date: Jul 2005
Posts: 1,334
Default

Quote:
Originally Posted by JonJay View Post

I have seen a lot of RV?s that didn?t appear to have any edge work done at all. Sharp edges everywhere, but I have yet to see any cracks as a result. I usually see ?other? build issues in those airframes.
Edge treatment is one of the first things I look at. It shows an attention to detail, and one would hope the builder followed suit elsewhere.
Sharp skin edges also promote micro-cracks in the paint along the edge, which leads to corrosion starting on the skin edges. If you're going to over do it, over do it on rounding the edges of the skins. Paint does not like a sharp edge. I have seen some beautifully painted planes that have corrosion starting along all the skin edges. A real shame.
__________________
Mike W
Venice, FL
RV-6A. Mattituck TMX O-360, FP, GRT Sport EFIS, L3 Lynx NGT-9000
N164WM
N184WM reserved (RV-8)....finishing kit in progress. Titan IOX-370
Reply With Quote
  #35  
Old 12-07-2019, 08:04 PM
cmadams52 cmadams52 is offline
 
Join Date: Aug 2018
Location: Barksdale AFB
Posts: 24
Default 3M Wheels

https://www.youtube.com/watch?v=vXRbQRAS46A

He says it all
__________________
Collin M. Adams
____________________________________________
N711XA - Reserved
KDTN
PPL-SEL-IR
CPL - In progress
Vertical Stab - In progress
Rudder - In progress
Dues Paid - 2020
https://eaabuilderslog.org?s=cmadams
Reply With Quote
  #36  
Old 12-09-2019, 01:50 PM
Bigspoon17 Bigspoon17 is offline
 
Join Date: Feb 2019
Location: Pensacola, FL
Posts: 26
Default

Where do you guys get your files? Cleaveland used to sell a file set but they no longer do.
Reply With Quote
  #37  
Old 12-09-2019, 04:56 PM
E. D. Eliot E. D. Eliot is offline
 
Join Date: Dec 2005
Location: San Pedro
Posts: 1,013
Default Need breathing protection in my opinion

I used the deburring wheel mounted to a Harbor Freight buffer/grinder. Very happy with the combo. HF buffer/grinder got very hot but thru one build, it still performs as new. Of course, you will want to have fine files, curved ones small and 1/2" size, flat ones, 1/2" and 1' or so. FINE grind. I also used a couple of small rat tail files. Be patient - pay attention to detail - this job is kinda like watching grass grow but very necessary.

I highly recommend that anyone doing deburring operations use some sort of mouth and nose (breathing) protection. After using the rotary deburring wheel for a couple of hours the first day, I began to cough. I imagine that I breathed in a few grams of aluminum filings that first day. Your face mask doesn't need to be expensive - I bought a box of 12 'dust masks' from Home Depot - works well.
__________________
Building finally
Reply With Quote
  #38  
Old 12-09-2019, 10:26 PM
N546RV's Avatar
N546RV N546RV is offline
 
Join Date: Aug 2010
Location: Brookshire, TX
Posts: 1,017
Default

Quote:
Originally Posted by Bigspoon17 View Post
Where do you guys get your files? Cleaveland used to sell a file set but they no longer do.
I got my vixen file from Avery or some other aircraft tool supply (I forget which, this was 7+ years ago), but the rest of what I have just came from wherever. I have a set of hand files from Harbor Freight, and a set of small and smaller needle files that I believe I got off Amazon. They've all served me well.
__________________
Philip
-8 fuselage in progress (remember when I thought the wing kit had a lot of parts? HAHAHAHAHA)
http://rv.squawk1200.net
https://www.meetup.com/Houston-Area-RV-Enthusiasts/
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 04:40 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.