Replies

1. 
   forestgirl | Jul 24, 2009 08:44am | #1

   I always assume that if the article originated in the states and the grit is not preceded by a "P" then it's a CAMI grit, by default.

   forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-) 
   
1. 
   esc | Jul 24, 2009 04:14pm | #2

   Thanks for replying. It is actually not that simple in this case. Because Fine woodworking is american, but to my ear the wood worker had a british accent (I might be wrong though). And actually it happened to me to observe that americans are moving to the P system and more than one time I investigated and found out the speaker meant P system. Is it possible that the P600 leaves scratches smaller than CAMI 1000? And that's why they don't care too much?

1. 
   forestgirl | Jul 24, 2009 05:24pm | #3

   Point taken, esc.   I think we care, for sure!  It's probably just an oversight, albeit an unfortunate one.  I'll see if I can find the video.  In the meantime, here's an article that talks about CAMI v FEPA and gives specific info on some of the papers here in the States.forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-) 

1. 
   SteveSchoene | Jul 24, 2009 05:53pm | #4

   That's a great article. 

2. 
   esc | Jul 24, 2009 06:22pm | #5

   Yes, good article. I already printed a copy. Unfortuantely does not answer my question though. Thanks.

1. 
   forestgirl | Jul 24, 2009 10:09pm | #6

   Glad you found the article useful.  Your original question was "Why, given this difference in grading system, people don't specify what system they are talking about?"  I doubt anyone can answer that question in a literal sense.   All we can do is try to do better.  I will do my part by suggesting to Gina that they try and specify the grading type of sandpaper mentioned when they do videos and articles.  Much better use of time and energy than trying to answer the unanswerable.....forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-) 

2. 
   esc | Jul 25, 2009 08:55am | #7

   I don't know who Gina is, maybe some editor? Anyway, I am glad my post was useful in someway. It looks like I am the only one to have this problem about confusing the two grade system. Thanks Enrico

2. 
   WillGeorge | Jul 26, 2009 03:40am | #8

   Sorry..

   My only comment is that we speak different languages but us nice folks get along anyway.. Even if we do not understand what the other said or did not say to us...

   See: http://www.taunton.com/finewoodworking/fwnpdf/011176117.pdf

   EDIT: A quote I saw someplace..

   I think the reason that you have not gotten any replies is that no one is willing to "admit" that they use it.

   
   

   ---

   Edited 7/25/2009 8:51 pm by WillGeorge

1. 
   esc | Jul 26, 2009 11:16am | #9

   ...and actually I did not understand your message.

   "I think the reason that you have not gotten any replies is that no one is willing to "admit" that they use it."

    

   What does it mean? Use what, the P system?

    

1. 
   Mackwood | Jul 30, 2009 08:41am | #14

   Admit they use sand paper.  That was a tongue in cheek referral to the fact that there is a LOT of discussion here about smoother planes and scrapers but not too often do people mention the SP words.

   I can certainly understand your difficulty with the video!!

   Regards,

   Mack"Close enough for government work=measured with a micrometer, marked with chalk and cut with an axe"

2. 
   forestgirl | Jul 27, 2009 08:23am | #10

   Will, that's the same article I linked him to in an earlier post.  And it didn't do him much good the first time around. <grin>forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-) 

3. 
   elizk | Jul 27, 2009 11:27pm | #11

   Hi,
   In the article that accompanies the video, it states that all wet-and-dry sandpaper is CAMI grade. Hope that helps.

4. 
   WillGeorge | Jul 29, 2009 07:41pm | #12

   And we speak in different languages.. ?????

   God made life hard for us!

1. 
   HWG | Jul 30, 2009 12:15am | #13

   When in doubt, err on the side of using the finer grade of paper.Woody

1. 
   esc | Jul 30, 2009 05:34pm | #15

   That's what I did so far, but it's not a good idea. Too fine sandpaper it's a mistake. Sure, it's better too fine than too coarse, but you should always use the best way to do things. I have come to this conclusion: up to about 240 grit, CAMI and FEPA are quite the same, so nobody should worry. For sanding finish one should go no finer than 600 grit CAMI because it's less homogenous than FEPA and have coarse grit contamination. As for FEPA, you can start from any grit ranging from P500 up to P1000. It's just a matter of time. The last time I did this I tried starting with P500 grit paper. But that's because I watched a video from an american finisher who specified P500 and not just 500. What bothers me is the fact that sometimes, like in the video I am referring too, people don't specify. They just say 600. Sure, you are american, but you are speaking to people from all over the world.  It's like saying: "make this piece 2.345 long" What? inches or mm? It's not the same thing. So you can take it for granted because in USA people are mainly using inches, but if you speak to people all over the world, you should specify what system are you talking about. I think so.