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Phillip Patton
PostPosted: Mon May 02, 2011 5:28 pm 
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Now, what brand and grits of abrasive do I need/are the best? I'll be using this primarily for finishing. So, I'll probably be using it wet or dry.

Thanks in advance,
Phillip

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Don Williams
PostPosted: Mon May 02, 2011 5:31 pm 
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meddlingfool
PostPosted: Mon May 02, 2011 6:30 pm 
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I use 3m 30 mic 366l MDF PDA te
ID # 60-0001-2168-5
and 15mic
ID# 60-0001-2172-7
And I sand dry only.
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Phillip Patton
PostPosted: Tue May 03, 2011 10:09 am 
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meddlingfool wrote:
I use 3m 30 mic 366l MDF PDA te
ID # 60-0001-2168-5
and 15mic
ID# 60-0001-2172-7
And I sand dry only.



And you go straight to buffing after that? Sounds great. bliss

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The bitterness of poor quality lingers long after the sweetness of low price has faded.

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meddlingfool
PostPosted: Tue May 03, 2011 11:29 am 
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Yep, straight to buffing. But frankly I would like to be able to get one step finer. They do make a 9 mic as well, but I found that it clumped quickly and left deeper scratches than what you're trying to sand out. So it takes a bit of muscle/patience at the wheels, but the results are nice.
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Phillip Patton
PostPosted: Tue May 03, 2011 12:02 pm 
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meddlingfool wrote:
Yep, straight to buffing. But frankly I would like to be able to get one step finer. They do make a 9 mic as well, but I found that it clumped quickly and left deeper scratches than what you're trying to sand out. So it takes a bit of muscle/patience at the wheels, but the results are nice.



I see that LMI carries some:

http://www.lmii.com/CartTwo/thirdproduc ... +Abrasives

Is that what you use? I don't know if it's self adhesive, or hook and loop. It looks like the pad on the Dynabrade is hook faced.

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meddlingfool
PostPosted: Tue May 03, 2011 12:14 pm 
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No, what I have is 5" discs with I think 8 holes for vacuum. I'm not sure if it comes in hook and loop. I know you can get a pad for the sander easily enough.
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Pegasusguitars
PostPosted: Tue May 03, 2011 12:36 pm 
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Meddling Fool- What kind of finish are you sanding? Have you used that method on nitro? Phillip- Think about using the Dynabrade for all your sanding. I have 4 in the shop and they are the very, very best sanders for all your sanding. Extremely fast and powerful. I know you'll like it if you try it. I use PSA Mirka Gold paper. The pads on your sander just screw on and you can get any kind pads, hook & loop, PSA, PSA with holes, etc., very cheaply. Happy sanding.-Bob

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meddlingfool
PostPosted: Tue May 03, 2011 1:01 pm 
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Everything but nitro. Slow dry laquer, UV poly, ktm 9 (rotten stuff!), ktm SV (awesome stuff!)...seems to work well for everything so I don't see why nitro would be a problem. But I say that with no nitro experience.
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Phillip Patton
PostPosted: Tue May 03, 2011 1:51 pm 
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Pegasusguitars wrote:
Meddling Fool- What kind of finish are you sanding? Have you used that method on nitro? Phillip- Think about using the Dynabrade for all your sanding. I have 4 in the shop and they are the very, very best sanders for all your sanding. Extremely fast and powerful. I know you'll like it if you try it. I use PSA Mirka Gold paper. The pads on your sander just screw on and you can get any kind pads, hook & loop, PSA, PSA with holes, etc., very cheaply. Happy sanding.-Bob



Thanks for pitching in! I'll definitely be trying it on wood too. I'm hoping this will revolutionize my finish. Sometimes I get these deep scratches that don't show up until I've buffed. [headinwall] I think they are from finish loading up on the paper.

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The bitterness of poor quality lingers long after the sweetness of low price has faded.

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meddlingfool
PostPosted: Tue May 03, 2011 2:00 pm 
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Probably. I have a piece of soft carpet on the bench. I sand a bit, sand the carpet to clean the disc, repeat. I use 6-8 discs if each grit per guitar. Not cheap, but better ryan having deep scratches.
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Phillip Patton
PostPosted: Wed May 04, 2011 10:53 am 
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Anyone else want to share their favorite ROS abrasives? I'm especially looking for hook and loop.

Thanks,

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http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

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Darrin D Oilar
PostPosted: Wed May 04, 2011 6:55 pm 
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At a cabinet shop I worked at we used Uneeda abrasives. They cut forever compared to the one with the dog on them they used before (dont remember what brand that was) . We used the red PSA backed ones.

http://www.sandpaper.com/products/discs ... orking.asp

Darrin
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meddlingfool
PostPosted: Wed May 04, 2011 7:19 pm 
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That's interesting, some of their stuff goes up to 3000 grit.
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Orion Thomas
PostPosted: Wed May 04, 2011 9:03 pm 
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How many cfm is your compressor? I used those for years when I did cabinet work and they hog air. I've wanted to get one for my personal use but been afraid my compressor wouldn't keep up.

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Phillip Patton
PostPosted: Wed May 04, 2011 9:52 pm 
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Orion Thomas wrote:
How many cfm is your compressor? I used those for years when I did cabinet work and they hog air. I've wanted to get one for my personal use but been afraid my compressor wouldn't keep up.



I think mine's around 20 cfm. It's an old Champion 80 gallon, four cylinder, two stage 5 HP compressor. Should keep up. 8-)

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turmite
PostPosted: Wed May 04, 2011 9:55 pm 
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Phillip Patton wrote:
Anyone else want to share their favorite ROS abrasives? I'm especially looking for hook and loop.

Thanks,



Phillip I just went to your site.....hmmmmm! That is gorgeous work!

Now what is ROS abrasives?

I have used one Dynabrade 3.5" 12,000 rpm with the small orbit since 1991! It has sanded well over 1500 rifle stocks, tons of misc items and it is still going! I don't know how fine the grit can be had, but the very best dry sanding abrasive I have ever used is Premier Red by Carborundum (sp)! With the high speed and small orbit, 400 grit is like 1200.


Mike

edited to add: Link for Premier Red plus Dynabrade http://www.abrasivesupply.com/3_1_2_PSA ... _s/116.htm
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Phillip Patton
PostPosted: Wed May 11, 2011 3:38 pm 
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Well, my dynabrade finally got here. I'm stoked. I went out and bought a regulator, oiler, and filter/dryer. I already have a dryer installed, but I figure another can't hurt.

The sander came with the PSA pad, so until I buy a hook and loop, I guess I'll be using psa discs...



turmite wrote:

Phillip I just went to your site.....hmmmmm! That is gorgeous work!

Now what is ROS abrasives?

I have used one Dynabrade 3.5" 12,000 rpm with the small orbit since 1991! It has sanded well over 1500 rifle stocks, tons of misc items and it is still going! I don't know how fine the grit can be had, but the very best dry sanding abrasive I have ever used is Premier Red by Carborundum (sp)! With the high speed and small orbit, 400 grit is like 1200.


Mike

edited to add: Link for Premier Red plus Dynabrade http://www.abrasivesupply.com/3_1_2_PSA ... _s/116.htm


Thanks for the compliment!

ROS = Random orbital sander. Thanks for sharing your experiences. I'm sure I'll be happy with mine. :) I'm sure there will be a learning curve though. I'll practice on a cheap guitar. ;)

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http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com
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Phillip Patton
PostPosted: Thu May 12, 2011 1:04 pm 
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I got the air system all put together, and have the sides of my current project sanded:

Image

Image

Image

Image

Image

Image




So far, I love the new sander!

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com
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