How many Edge Pro Blanks do you have/need?

Ok, I'm back to the congress stones (flex or moldmaster, haven't decided yet) as I think I'd wear out the 3M lapping film (regular or diamond) if trying to do heavy duty metal removal. But I do think I'll try the lapping film for the polishing stages. Just need to decide if going with diamond or not.
 
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CrimsonTideShooter said:
How much are those congress stones going to set you back for the whole set? I only want to know because if it is a good bit I may have a suggestion for you..
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Like $21.30 for all of them combined, 1" x 1/8" x 6" for the SIC Moldmasters.

120, 150, 240, 320, 400 and 600 if they got all of them.

I use the 320, 400 and 600 grits, that would be so that would be like $11.55 total for those 3 stones.

AND THEY LAST FOR A VERY LONG TIME.......

They cut very fast being SIC and it doesn't matter what steel it is either, I use the 320 for reprofiling and finish with the 400 usually.
 
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Alright...I thought long and hard about this....here we go:

From Congress Tools:

Qty Order # Description Unit of Unit Extended
Measure Price Price
MM3201146 STONE, MOLDMASTER-320 1X1/4X6 EA $4.45 $4.45
MM1201146 STONE, MOLDMASTER-120 1X1/4X6 EA $3.70 $3.70
FL4001146 STONE, FLEX-400 1X1/4X6 EA $6.45 $6.45
FL6001146 STONE, FLEX-600 1X1/4X6 EA $6.75 $6.75
Subtotal: $21.35

From Edge Pro:


1 Silicon Carbide (I have my own glass) $5.00 $5.00
2 1000 Grit Unmounted stone $8.00 $16.00
5 Stone Blank $5.00 $25.00
3 Glass Blank $12.00 $36.00
11*item(s) in cart
Subtotal:
$82.00


From http://www.bestsharpeningstones.com (there are other retailers, gotta see if lower price out there, I'll cut these sheets up to 16 x 1in by 5.5in PSA strips):

3M Lapping Film, 3 micron single sheet Update $6.95 $6.95
3M Lapping Film, 1 micron single sheet Update $6.95 $6.95
3M Lapping Film, .3 micron single sheet Update $6.95 $6.95
Subtotal $20.85

I should never need to purchase another congress stone again, haha.
 
Ankerson,

Have you noticed dishing with the Congress stones yet? Thats primarly the only reason why I went to the diamond tapes from 3M. They are perfectly flat every single time and I don't need to adjust the EP due to the difference in stone thickness.
 
I was worried about the diamond tape or the regular 3m Lapping films not lasting long enough in the lower grits to grind off metal when reprofiling. Have you reprofiled with the 3m Diamond tapes? How many tapes (not sheets) did it take?
 
capid1 said:
Ankerson,

Have you noticed dishing with the Congress stones yet? Thats primarly the only reason why I went to the diamond tapes from 3M. They are perfectly flat every single time and I don't need to adjust the EP due to the difference in stone thickness.
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I haven't noticed any wear at all yet on the 400 and 600 and very little on the 320 and I have used them a lot, they still look almost like new really.

I bought 2 of each of the 320,400 and 600, still using the 1st ones, they just don't wear out.
 
I have reprofiled 6 knives ranging from 3-4in blades in S30V-60rc, S90V-61rc, M4-63rc and K390-64rc and they were all done on one STRIP of the 74, 45, 30 and 20micron diamond tape and they are still going strong. I think they get a bad rap as people may put alot of pressure on them and that rips the diamond out of the polyester backing. YMMV
 
Hrmmm...I won't use mine nearly as much as Ankerson. Perhaps I only need the 1/8th inch ones.

Edit: Ugh, guess the diamond films might work fine then. Do you have any pictures of your work with those films by chance?
 
Ankerson said:
I haven't noticed any wear at all yet on the 400 and 600 and very little on the 320 and I have used them a lot, they still look almost like new really.

I bought 2 of each of the 320,400 and 600, still using the 1st ones, they just don't wear out.
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Thanks for the info!
 
capid1 said:
I have reprofiled 6 knives ranging from 3-4in blades in S30V-60rc, S90V-61rc, M4-63rc and K390-64rc and they were all done on one STRIP of the 74, 45, 30 and 20micron diamond tape and they are still going strong. I think they get a bad rap as people may put alot of pressure on them and that rips the diamond out of the polyester backing. YMMV
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I guess I have used them like 50 times so far on steels ranging from VG-10 to K294, mostly the 320 and 400 grits.

I would say the difference would be at least 10 to 1 EP to Congress Moldmaster maybe more from what I have seen.
 
Hrmm, the 1/8in stones seem to last fine and they would hypothetically allow a lower angle when sharpening than the 1/4in stuff.
 
Bster13 said:
Hrmm, the 1/8in stones seem to last fine and they would hypothetically allow a lower angle when sharpening than the 1/4in stuff.
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I got the 1/8" stones because they match the EP stock thickness so if I needed to go up to a high polish using the 1000 and 1200 grit EP stones then the tapes.

But then I rarely go above the 400 grit Congress stone usually.
 
Ankerson said:
I got the 1/8" stones because they match the EP stock thickness so if I needed to go up to a high polish using the 1000 and 1200 grit EP stones then the tapes.
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Understood. I have a 5/16th drill stop collar coming so that should work for different thickness stones, but even though the congress stones are cheap...if your 1/8in stones are going strong, I can't see myself wearing the 18in ones out anytime soon. What do you use to level them?
 
Bster13 said:
Understood. I have a 5/16th drill stop collar coming so that should work for different thickness stones, but even though the congress stones are cheap...if your 1/8in stones are going strong, I can't see myself wearing the 18in ones out anytime soon. What do you use to level them?
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Haven't had to flatten them yet. :D

But I have SIC from EP if I ever need to.
 
Bster13 said:
Hrmmm...I won't use mine nearly as much as Ankerson. Perhaps I only need the 1/8th inch ones.

Edit: Ugh, guess the diamond films might work fine then. Do you have any pictures of your work with those films by chance?
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I can upload some when i get home tonight
 
Ankerson said:
I guess I have used them like 50 times so far on steels ranging from VG-10 to K294, mostly the 320 and 400 grits.

I would say the difference would be at least 10 to 1 EP to Congress Moldmaster maybe more from what I have seen.
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I may have to give them a try as I always like different solutions. The stock stones on the EP dished slowly but I noticed when I did flatten them they flatten on an angle. Most likely due to uneven pressure though
 
Congress Moldmasters with Phil Wilson Bow River in K294 @ 64 HRC.

DSC_34591.JPG


Top to bottom, 320, 400 and 600

DSC_34581.JPG
 
Here is a pic of the K390 at 64rc using a 74,45, 30, 20 and 9micron sheet. Not the best picture of the edge but it will give you an idea of the outcome


DSC_0402.jpg
 
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