KR> DA dual action sander

[Larry H.]

This is a little more explanation for those who have never used a DA. A DA has 
a round pad that holds your sanding paper or buffing pad for polishing that 
spins in a circle for sanding or polishing. Along with the spinning in a 
circle, the shaft that carries the round pad is being moved side ways 
eccentrically, kinda like a left right and or up and down sanding motion along 
with the circular sanding motion of the round disk, there by the two way. An 
easy way to think of it is like using a hand held metal grinder which of course 
has a grinding disk that spins in a circle. When grinding a large flat surface 
typically one will move the grinder left and right and up and down to keep from 
grinding down into the metal surface. With a DA the left and right are 
automatic, but you do still have to move it from place to place to keep from 
buffing all of your paint off in one spot or grinding through your fiberglass 
in one spot.
I have a Boshe sander that will just spin in a circle or can be switched to the 
dual motion at the same time. This tool has a switch to change from one to both 
operations. I have used mine mostly to buff my boat with wax. You do get extra 
vibration in your hands with the eccentric movement of the shaft that carries 
the spinning disk.
Hope I didn't confuse anyone, but it is almost 2 am here. Guess maybe it is 
time to grind to a halt!
Larry Howell





DA is short for "dual action" sander.  It is body shop  lingo to describe 
the air powered sander that has been around a long time. 
Kevin Golden
Harrisonville, MO




In a message dated 12/6/2009 8:42:50 P.M. Central Standard Time,  
le62...@yahoo.com writes:

A DA  sander is an air sander.  It is usually with a six inch pad for six 
inch  wet or dry sandpaper.  When you sand the clear coat you want to use it  
wet.  This keeps the paper from clogging.  I use the DA sander on  flat 
surfaces only when sanding clearcoats.  It is easy to sand through  the clear 
coat on sharp edges so I do the sharp edges and turns by hand  with a foam 
sanding block.  A DA sander is a round sander which is  adjustable to 
different speeds.  It makes sanding and finishing a much  easier job.

--- On Sun, 12/6/09, j...@aol.com   wrote:


From: j...@aol.com 
Subject: Re:  KR> Paint :Imron
To: kr...@mylist.net
List-Post: krnet@list.krnet.org
Date: Sunday, December 6, 2009,  4:43 PM




In a message dated 12/4/2009 5:23:45 P.M. Central  Standard Time,  
le62...@yahoo.com writes:

We do  some  antiques and street cars and we will put as high as four
or five  coats  of clear and DA sand them with 1500 grit, 2000 grit and 
then  
3000 grit and  buff several times to get the desired finish.  Ultra fine 
sanding takes  out all the orange peel and any contamiants  that settle in 
the 
clear top  coat.



What does "DA  sand" mean, and do people use powered orbital  sanders for 
finishing  without worrying about glass separation from the foam or  wood?  

Jay W. Hughes
N128JH
American by Birth - A Texan by the Grace  of  God


In God we  trust!
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KR> 3300 Jabiru to cool correctly

[Dene Collett]

I have tried all kinds of lips of various sizes at the exit to no avail. I 
also have an in flight adjustible flap that hinges down to open and close 
the exit which forms a hige "lip" when in the full open position. It also 
has sides as we thought the air being displaced by the flap was spilling 
round the sides of the flan satisfying the low pressure at the mouth of the 
exit.. no luck. The air inlets were sized the same size as the four 
seater Jabiru aircraft which uses the same motor. What was not taken into 
considderation was the fact that the motorglider flies at a much lower 
airspeed than the Jabiru. My next experiment is to enlarge the inlets and 
see what difference that makes.
Regards
Dene Collett
Avlec Projects cc
Port Elizabeth
South Africa
- Original Message - 
From: 
To: 
Sent: Saturday, December 05, 2009 11:48 PM
Subject: Re: KR> 3300 Jabiru to cool correctly


The Jabiru directions recommend the lip on the  lower opening plus the
outlet opening be three times the size of the inlet. 

KR> Paint :Imron

[Lee Van Dyke]

Porter Cable has a great DA sander that is Electric.  Dry paper is the best. 
400 to 800 grit for getting the old clear coat ready for the new clear. 
They work alot better when they are turned on and not in the box.  lol 
happy sanding.

Lee Van Dyke
Mesa AZ
flying Snakebite 

KR> Paint :Imron

[tinya...@aol.com]

DA is short for "dual action" sander.  It is body shop  lingo to describe 
the air powered sander that has been around a long time.   I have never heard 
of using one with wet or dry paper, but I guess you  could.  I would think 
it would sling filthy water in your face, all over  the shop, and inside 
your project.  Watching out for the sharp edges  is very good advice.  Sanders 
eat through these areas very quickly.   Sort of like when you cover a fabric 
wing and you avoid sanding on the ribs much  to keep from eating through 
the fabric.  Power sanding tools can  do a lot of damage in a hurry if not 
watching what your doing.  Be  careful.

Kevin Golden
Harrisonville, MO




In a message dated 12/6/2009 8:42:50 P.M. Central Standard Time,  
le62...@yahoo.com writes:

A DA  sander is an air sander.  It is usually with a six inch pad for six 
inch  wet or dry sandpaper.  When you sand the clear coat you want to use it  
wet.  This keeps the paper from clogging.  I use the DA sander on  flat 
surfaces only when sanding clearcoats.  It is easy to sand through  the clear 
coat on sharp edges so I do the sharp edges and turns by hand  with a foam 
sanding block.  A DA sander is a round sander which is  adjustable to 
different speeds.  It makes sanding and finishing a much  easier job.

--- On Sun, 12/6/09, j...@aol.com   wrote:


From: j...@aol.com 
Subject: Re:  KR> Paint :Imron
To: kr...@mylist.net
List-Post: krnet@list.krnet.org
Date: Sunday, December 6, 2009,  4:43 PM




In a message dated 12/4/2009 5:23:45 P.M. Central  Standard Time,  
le62...@yahoo.com writes:

We do  some  antiques and street cars and we will put as high as four
or five  coats  of clear and DA sand them with 1500 grit, 2000 grit and 
then  
3000 grit and  buff several times to get the desired finish.   Ultra fine 
sanding takes  out all the orange peel and any contamiants  that settle in 
the 
clear top  coat.



What does "DA  sand" mean, and do people use powered orbital  sanders for 
finishing  without worrying about glass separation from the foam or  wood?  

Jay W. Hughes
N128JH
American by Birth - A Texan by the Grace  of  God


In God we   trust!
___
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to UNsubscribe from KRnet,  send a message to krnet-le...@mylist.net
please see other KRnet info at  http://www.krnet.org/info.html




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KR> Paint :Imron

[Lee Parker]

A DA sander is an air sander.  It is usually with a six inch pad for six inch 
wet or dry sandpaper.  When you sand the clear coat you want to use it wet.  
This keeps the paper from clogging.  I use the DA sander on flat surfaces only 
when sanding clearcoats.  It is easy to sand through the clear coat on sharp 
edges so I do the sharp edges and turns by hand with a foam sanding block.  A 
DA sander is a round sander which is adjustable to different speeds.  It makes 
sanding and finishing a much easier job.

--- On Sun, 12/6/09, j...@aol.com  wrote:


From: j...@aol.com 
Subject: Re: KR> Paint :Imron
To: kr...@mylist.net
List-Post: krnet@list.krnet.org
Date: Sunday, December 6, 2009, 4:43 PM




In a message dated 12/4/2009 5:23:45 P.M. Central Standard Time,  
le62...@yahoo.com writes:

We do  some antiques and street cars and we will put as high as four
or five coats  of clear and DA sand them with 1500 grit, 2000 grit and then 
3000 grit and  buff several times to get the desired finish.  Ultra fine 
sanding takes  out all the orange peel and any contamiants that settle in the 
clear top  coat.



What does "DA sand" mean, and do people use powered orbital  sanders for 
finishing without worrying about glass separation from the foam or  wood? 

Jay W. Hughes
N128JH
American by Birth - A Texan by the Grace of  God


In God we  trust!
___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> New subject - This is not KR! - Proper communication???

[Tim]

Just don't end up with your' project hanging on a .Wall;-)

Tim

- Original Message - 
From: "JC Marais" 
To: "'Tim'" 
Sent: Sunday, December 06, 2009 4:57 AM
Subject: RE: KR> New subject - This is not KR! - Proper communication???


> Hi Tim,
> 
> Thanks for this link.
> 
> Wow, a lot of info - I will spend a lot of time here - THANKS>
> 
> Regards.
> 
> JC
> 
> JC Marais
> Centurion
> South Africa
> 082-401-5259

KR> Paint :Imron

[j...@aol.com]

In a message dated 12/4/2009 5:23:45 P.M. Central Standard Time,  
le62...@yahoo.com writes:

We do  some antiques and street cars and we will put as high as four
or five coats  of clear and DA sand them with 1500 grit, 2000 grit and then 
3000 grit and  buff several times to get the desired finish.  Ultra fine 
sanding takes  out all the orange peel and any contamiants that settle in the 
clear top  coat.



What does "DA sand" mean, and do people use powered orbital  sanders for 
finishing without worrying about glass separation from the foam or  wood? 

Jay W. Hughes
N128JH
American by Birth - A Texan by the Grace of  God


In God we  trust!

KR> This is not KR! - Proper communication???

[Larry Flesner]

At 05:16 AM 12/6/2009, you wrote:
>What IS KR-related, is my search for a plan for an engine mount for a Soob
>EA81 TO BE ATTACHED TO A KR2.
>JC Marais
>+++


IT CERTAINLY IS..

Larry Flesner

KR> New subject - This is not KR!

[Larry Flesner]

At 08:08 PM 12/5/2009, you wrote:
>I am sure there must be a Jab forum where this could be discussed, unless
>you are putting it on a KR and educating us all how to keep it cool on a KR.
>Daniel R. Heath
++

The science and physics of cooling an air cooled engine pretty much 
cross all makes and models from VW to Corvair to Lycombing to 
Continental.  I really don't see the subject as being "out of bounds" 
for the KR net as there will be those that are considering using a 
Jabaru engine in a KR and their fixes for cooling could be useful to 
anyone running an air cooled engine.  Just my thoughts...

Besides, the net has been rather boring lately..

Larry Flesner

KR> New subject - This is not KR! - Proper communication???

[Tim]

Although not on a KR and sporting a Thrust Prop ;-)  This site has 
interesting Soob Engine Mount/Mounting info> 
http://www.howardboyle.com/engine_&_mount.htm

CL-Tim


- Original Message - 
From: "JC Marais" 

KR> New subject - This is not KR! - Proper communication???

[JC Marais]

Hi guys,

Here are a few hundred people on this forum. Is it too much asked to write
in a proper way and use punctuation? I'm not talking about people who's
knowledge of the language (English / American) is low because it's their 3rd
of 4th language, but WHAT does this mean: "and you do not have the power i
have a kr2s i know  what motor gives the most grunt"

What IS KR-related, is my search for a plan for an engine mount for a Soob
EA81 TO BE ATTACHED TO A KR2.

Regards.

JC

JC Marais
South Africa

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of randsbrierley
Sent: 06 December 2009 10:07
To: KRnet
Subject: Re: KR> New subject - This is not KR!

and you do not have the power i have a kr2s i know  what motor gives the
most grunt
- Original Message -
From: "Mark Langford" 
To: "KRnet" 
Sent: Sunday, December 06, 2009 12:49 PM
Subject: Re: KR> New subject - This is not KR!

KR> New subject - This is not KR!

[randsbrierley]

and you do not have the power i have a kr2s i know  what motor gives the 
most grunt
- Original Message - 
From: "Mark Langford" 
To: "KRnet" 
Sent: Sunday, December 06, 2009 12:49 PM
Subject: Re: KR> New subject - This is not KR!


>I am sure there must be a Jab forum where this could be discussed, unless
> you are putting it on a KR and educating us all how to keep it cool on a
> KR.

There are several KRs with Jabirus installed, and many of them have or had
cooling issues, although KRs are fast enough that cooling isn't usually as
large an issue as on a slower plane.  Apparently those considering using a
Jabiru should be aware that special attention should be paid to cooling
issues.  At the risk of sounding like I'm pushing the Corvair, Corvairs have
no such issues, and VW's don't seem to have a problem with cooling either.

Mark Langford
N56ML "at" hiwaay.net
website at http://www.N56ML.com
 


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