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deburring tool

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zenith-list(at)steensland
Guest

Posted: Fri Mar 28, 2008 11:42 am Post subject: deburring tool

http://ezburr.com/



I emailed them about using their tools for deburring the 10,000-ish 

holes we'll drill in the skin for a 601. They seemed confident it would 

do the job. Now, being the skeptic that I am, I thought I would pass 

this along to see what other non-sales people think. The sales guy 

mentioned that I should order "Positive rake blades".



I might just buy one and try it on some scrap before I fully get to 

gettin'.



-- 

Lee Steensland

601XL/Corvair (7637L reserved) Kit/Scratch builder 0.0% complete!

pavel569

Joined: 21 Dec 2007
Posts: 77

Posted: Fri Mar 28, 2008 12:07 pm Post subject: Re: deburring tool

Lee,

I think it will be very hard to keep the deburring tool from making a small chamfer. In .016" Alu sheet it can lead to enlarging the diameter of the hole and possible to the rivet to get lose. I know, it is very hard to deburr so many holes but IMHO the simple file pass over the sheet (when possible) is just the safest way to clean the hole from chips.

_________________
Pavel
CA
Zodiac 601XL
Stratus Subaru EA-81
Tail, flaps, ailerons, wings, fuselage, canopy done ...
"do not archive"

MHerder

Joined: 11 Feb 2008
Posts: 143
Location: Fort Worth TX

Posted: Fri Mar 28, 2008 12:11 pm Post subject: Re: deburring tool

Another list member told me about this item from McMaster Carr.  It is cheap and works great.  Even for "blind debrurring"  I only use it when I cant get to certain spots, but its advantage is that it handles both #20, and #30 holes.  The rest of the time I use my offset deburring tool with the three flutes like they sell at avery.



Go to thier website and search item #7815A21



Small Hole Deburring Tools 

 

 

    Debur the front and back edges of a hole with just one tool. Pivoting, triangular-shaped blades give these tools added versatility. They have an all-steel body with an aluminum push-button that reverses the blades. Blades are high-speed steel and cut clockwise and counterclockwise.  

Hole Dia.  O'all  Deburring Tools  Repl. Blades  

Range  Lg.  Each  Each  

 

0.118"-0.2165" 3 3/8" 7815A21 $15.80 

 7815A41 $7.66 

 

0.197"-0.3937" 4 3/4" 7815A22 15.80 

 7815A42 8.28 

 

0.3937"-0.866" 6 3/4" 7815A23 18.81 

 7815A43 10.34

_________________
Zodiac 601 HD
Jabiru 3300
Wood Sensinich 64x47
Finally Flying

planecrazydld(at)yahoo.co
Guest

Posted: Fri Mar 28, 2008 12:26 pm Post subject: deburring tool

These are the Cadillacs of deburring tools. They deburr evenly with absolutely minimal loss of gage. They are also expensive.



Lee Steensland <zenith-list(at)steensland.net> wrote:[quote] --> Zenith-List message posted by: Lee Steensland 



http://ezburr.com/



I emailed them about using their tools for deburring the 10,000-ish 

holes we'll drill in the skin for a 601. They seemed confident it would 

do the job. Now, being the skeptic that I am, I thought I would pass 

this along to see what other non-sales people think. The sales guy 

mentioned that I should order "Positive rake blades".



I might just buy one and try it on some scrap before I fully get to 

gettin'.



-- 

Lee Steensland

601XL/Corvair (7637L reserved) Kit/Scratch builder 0.0%       Be a better friend, newshound, and   [quote][b]

n85ae

Joined: 14 Mar 2007
Posts: 403

Posted: Fri Mar 28, 2008 12:30 pm Post subject: Re: deburring tool

I took an old file, broke it in half and then using the grinder ground all

corners round. I Attached a handle to it, and a couple fast passes along 

a row of drilled holes and they are all deburred at once. The key is NO

sharp edges, as you don't want scratches. It does produce scuffs

between the holes. But these go away when you paint prep it anyway.



On sheet you only need take off what sticks up. Using pretty much any 

machinist deburring tool is pretty much a guarantee that you removed

metal and formed a small countersunk edge. Which you don't really 

want.



Tediously deburring hole by hole is a big waste of time in my opinion.

You can do an entire wing skin in a couple minutes with a modified

file, with in my opinion less damage from over beveling edges. 



Jeff

planecrazydld(at)yahoo.co
Guest

Posted: Fri Mar 28, 2008 3:33 pm Post subject: deburring tool

yeah - much faster. and all the possible residual scratches/gouges are running parallel to the fastener pattern. Maybe you can do it correctly every time but some out there will not - and having that scratch pattern is fatal every time - just the time is variable.



I also agree that the tendency to remove metal is very real. sharp, lubricated bits and step drilled holes will result in minimal thickness burrs (thickness of the burr - not the height of the burr from the face of the sheet) that will come off with virtually no countersinking.



n85ae <n85ae(at)yahoo.com> wrote:[quote] --> Zenith-List message posted by: "n85ae" 



I took an old file, broke it in half and then using the grinder ground all

corners round. I Attached a handle to it, and a couple fast passes along 

a row of drilled holes and they are all ">Blockbuster Total Access for one month at no cost.  [quote][b]

psm(at)att.net
Guest

Posted: Fri Mar 28, 2008 6:57 pm Post subject: deburring tool

Hi Lee,



This tool looks like a good idea for a Zodiac builder.  I would try 

one except I am almost done with deburring holes.  After 3 years 

working on the same plane, I don't have much basic assembly left to do.



I took a quick look at the web site, and wound up with more questions 

than answers.  I did like the little video demo.  My questions:

1.  What do these little gems cost?

2.  Do you need a different tool for each hole size?

3.  How important is the speed and feed used on these tools?



I did most of my deburring with a single edge countersink tool 

mounted on a lithium ion battery powered screwdriver.  It works well 

and only needs resharpening once a year or so.  The tool is high 

speed steel and cutting aluminum is easy for it.  The tool bit only 

costs a few bucks from a place like MSC and total cost with a chuck 

and power screwdriver is less than $50.



Good luck,



Paul

XL fuselage





At 12:38 PM 3/28/2008, you wrote:

 	  Quote: 	
		  http://ezburr.com/



I emailed them about using their tools for deburring the 10,000-ish 

holes we'll drill in the skin for a 601. They seemed confident it 

would do the job. Now, being the skeptic that I am, I thought I 

would pass this along to see what other non-sales people think. The 

sales guy mentioned that I should order "Positive rake blades".



I might just buy one and try it on some scrap before I fully get to gettin'.



--

Lee Steensland

601XL/Corvair (7637L reserved) Kit/Scratch builder 0.0% complete!

n85ae

Joined: 14 Mar 2007
Posts: 403

Posted: Sat Mar 29, 2008 6:35 am Post subject: Re: deburring tool

If you take the file, and modify it by grinding all the corners off of it

a chimpanzee could deburr without scratching panels. Which is pretty

much why I do it this way. 



Jeff



 	  Quote: 	
		  yeah - much faster. and all the possible residual scratches/gouges are running parallel to the fastener pattern. Maybe you can do it correctly every time but some out there will not - and having that scratch pattern is fatal every time - just the time is variable.

zenith-list(at)steensland
Guest

Posted: Sat Mar 29, 2008 10:52 am Post subject: deburring tool

Thanks everyone, it appears to be a "cute gadget" however for what we 

are doing probably a file is a "better gadget" than what they are pushing.

n85ae wrote:

 	  Quote: 	
		   



 If you take the file, and modify it by grinding all the corners off of it

 a chimpanzee could deburr without scratching panels. Which is pretty

 much why I do it this way. 



 Jeff

   

> yeah - much faster. and all the possible residual scratches/gouges are running parallel to the fastener pattern. Maybe you can do it correctly every time but some out there will not - and having that scratch pattern is fatal every time - just the time is variable. 

>     



 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=173414#173414



   


	




-- 

Lee Steensland

601XL/Corvair (7637L reserved) Kit/Scratch builder 0.0% complete!

dfmoeller

Joined: 19 Jun 2006
Posts: 60
Location: Austin, TX

Posted: Sat Mar 29, 2008 11:22 am Post subject: Re: deburring tool

I agree wholeheartedly that a file mounted to a small block of wood makes the best deburring tool around for flat pieces of aluminum, BUT that leaves the question of how to handle burrs in areas where a file is really not accessible, e.g., the flanges on ribs.



From my own experience, I've taken to drilling those holes a little undersized and using a double edged tool to "ream" the hole a little bit.  Sure it leaves a slight chamfer on the inside edge (the bad one to leave a chamfer on!), but not much of one; and I have a strict rule that I follow in that I always check the final hole with a home made go/no-go gauge (a tapered pin punch with the max hole diameter marked with an extra fine sharpie).  If I can fit it in the available space, I also like the offset screwdriver/rosette style, but you've really got to hit it lightly.



I was also thinking about trying out a small ball shaped stone (considerably larger than the hole diameter though) in a Dremel tool - anyone tried it?



Doug

paulrod36(at)msn.com
Guest

Posted: Mon Mar 31, 2008 11:22 am Post subject: deburring tool

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]-->  Actually, the key to using a vixon (vixen?) file is to hone the teeth edges  against a smooth surface before using, so that there are flats at the bottom of  the teeth, it should look like this side view: \_\-\_\-\_\-\_\. Consider the  lines all connected, and you get the idea.  It can be done with valve  grinding compound on a sheet of glass. The one I bought from Airparts doesn't  leave longitudinal scratches.

  

 Paul Rodriguez

 [quote]   ---

davids601xl(at)yahoo.com
Guest

Posted: Fri Apr 04, 2008 5:45 am Post subject: deburring tool

Lee I would never use these on sheet myself. Too slow

and I would like to see exactly how much material they

remove from a home in .016 material.  The vixen file I

like the best for speed AND not removing material past

flush. Just my 2 cents mind you. 

 Now, being the skeptic that I am, I

 	  Quote: 	
		   thought I would pass 

 this along to see what other non-sales people think.

 The sales guy 

 mentioned that I should order "Positive rake

 blades".

 

 I might just buy one and try it on some scrap before

 I fully get to 

 gettin'.


	




David Barth

601 XL Plansbuilder  15% done?

Working on Wings

www.ch601.org

You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost.  

http://tc.deals.yahoo.com/tc/blockbuster/text5.com

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