Updated How to dress Edge Pro Matrix Diamond stones.
Vložit
- čas přidán 22. 05. 2019
- It's time to update this video so here it is. This is what I have found works best to dress the Matrix stones. I can not overstate that dressing these stones is critical to how well they work. They either don't work very well with an improper dress or work really well with a good dress. Once you learn how to use these stones and dress them you can fine tune to your likes by modifying how you dress them, and how often.
For more information about my resin bond diamond stones vist www.cgsw.us - Zábava
Thanks for the video. I've just bought my set of these
Thank you for making these as tones please never changed anything
I am always trying to improve them but so far it's only improvements in the manufacturing process that are making it into production.
Appreciate the demo. I have some old DMT diamond stones. Could you use an older diamond stone to polish a matrix diamond stone.
I really doubt it since what you are trying to do is remove the resin from around the diamonds and the loose abrasive rolling around between the plate and stone just works differently. It would probably wear the points off the diamonds in both stones as well, something the softer loose abrasives don't.
Dry Bars keepers friend powder, Ajax, (no water) scrub your stone over a piece of flat marble or thick glass. Or put some dry barkeepers friend powder ( no water ) over a 3M green pad and scrub the stone straight over.
Thank you David. I just got my full set of these stones. Anxious to try them out in my next sharpening session. Do these stones require any special treatment right out of the package before first use? Also, assuming regular alcohol cleaning routine, is there a reliable indicator that it’s time to dress the stones as in this video? How does one know it’s time to dress the stone? Kenny
The stones should be ready to go from EP as they dress them. In time you will learn when they need to be dressed, about every 40? knives for the 4k and about never for the 250 and 80, in between for the rest. At first, you need to learn the range of these stones from freshly dressed to needing to be dressed so don't be shy about using too much pressure to find out how much to use, it varies by grit and steel hardness. They don't like soft steel so the softer the steel the lighter the pressure for all grits. They also need to be dressed a few times from new to really reach their potential so don't be shy about dressing them a few times. I can't overstate how important dressing is to them, it radically changes how aggressive they are. A freshly dressed stone is too aggressive, it needs to sharpen a knife or two to settle down. Some like this but I think it would be better to just drop down a grit if you want more aggressive, and the stones will last a lot longer this way anyway. Neither EP nor I clean them with alcohol, the dark marks from the steel is only cosmetic and doesn't change the way they work, as long as you keep them wet when sharpening and give them a quick scrub with your thumb after use.
The dressing advice I give is for edge trailing strokes with the finer stones. If you use edge leading it is more prone to microchipping the apex and I think the steel chip will embed in the resin. This will then cause stray deeper scratches in your bevel. At this point, you need to do a 10-15 second maintenance dress to clean up the stone. I have noticed this with the 2300 and 4k, not sure I have seen this with the lower grit stones. You will need to dress your stones a lot less with edge trailing strokes as well as get your knives sharper with them, lots of reasons to use only edge trailing strokes once you reach the apex, which I think applies to most if not all diamond stones.
This is precisely what I wanted to know. Thank you
Very educational video and I'll be watching it again.
What is that annoying noise in the background?
The noise is the sound the stones make rolling over the abrasive, with the sand for the 80 grit stones being particularly loud.
Hello David !
I use the old all line of your insane and fabulous Matrix set, 80 , 250 , 650, 1100 , 2300 and 4000 and I really enjoy use them for about 2 years now .. and whaoww 🥰
Yesterday i receive a present for my Bday , the new line of your MATRIX stone ..
80, 250, 450, 950, 1700 and 4000.
I will keep the new 80 , 250 and 4000 for back up but can I use the full line like 80,250,450,650, 950, 1100 , 1700, 2300,4000 ??
The micron are different isn' it ?
Like.. 160 microns, 80m,40m,35m,20m,17m,10m,8m, and 5 microns ??
I know I am super lucky woth this present and if at the first thought I thought about send them back to get refund.. in fact I am so happy and just have the full line Set of it !
After watched all your vids for year I have really super Nice result on all my knives .. only 10 to 15 pass per side on each stone .. on K390, Magnacut, V4E , Elmax , M390,..
Continues please to make such nice job with your Stones..
Congratulations on your birthday present! Honestly there is no need to use all of the stones, either lineup has enough overlap between grits that you don't need to make the steps any smaller. The difference between the old and new grit progression is minimal. The only reason we changed it was the new progression is just a tiny bit better, but if you don't have both sets in front of you to use you won't know the difference. Still, when we do have both sets to use everyone has gravitated to the new ones. We all like our stones to cut faster and the new grits are all coarser than the ones they replaced, not by much, but it is noticeable.
You did get the micron sizes for the different grits right.
Thanks a lot for this answer !!👍
Last questions please , I know you have already mentionned it but Could you tell me want should be the perfect sand or oxidium for dressing the 80 grit please ??
Maybe put a link ..
I was abble to find the egde pro aluminium 240grit for the 650 to 4000 diamond stone but not yet the one for the 80 and 250 diamond stone.
I live in Switzerland and it is not so easy to find the same sand that the one you use in this vid !
It will help a lot 😉
Have a blessed day !
@@labuse7490 You want around 24 grit abrasive to dress the 80 grit/ 160 micron stone, say 16 to 36 grit. What the abrasive is made of isn't too important, it just needs to be the right size. I started using "pool sand" for swimming pool filters and kind of prefer it to the aluminum oxide I now use and sell on my website.
The 250 grit/ 80 micron stone needs 60 grit abrasive which also works fine for the 450 grit/ 40 micron stones. Fresh 240 grit abrasive works for the 450s too.
Brown aluminum oxide or black silicon carbide are the best abrasives since they are the least friable and will hold up the best. The most important part is the size of the abrasive when dressing, not what it is made of. The first abrasive I used was sand and it worked fine on the stones it was the right size for.
Here is a page on my website where I show best practices for using and maintaining the stones I make. cgsw.us/?page_id=434
What about garnet sand for waterjet for Dimond Matrix stone dressing. Harder than the aluminium oxide, would that work for the 80 grit??
I haven't tried but I would think it would work if you can get it in the right size, preferably no finer than 24 grit for the 80. 36 grit barely works but not once it starts to break down.
I'm wondering if the process would be the same for cbn stones? I have a set of hapstone premium cbn and they just don't cut as well as others I've seen so I was told I needed to lap them, I ordered the full kit from hapstone with all the different sic powders, can I do the same?
I think so but it depends on the resin and any modifiers if used. I haven't seen one in person so I can't say for sure. The old Venevs didn't dress well but the current ones do, and I don't know how the Hapstone stones compare. While you can't harm them by dressing you can make them cut much finer/slower by dressing them wrong. I would say dress one of your coarser stones for no more than 10-15 seconds and take a few passes on a knife to see if it made a difference. Repeat a few times until you feel it is cutting well and doesn't improve with more dressing. Dressing with coarser grits may make the stones more aggressive and dressing with too fine a grit may make the stone cut finer/slower so don't be shy about playing with different grits, but stay away from anything finer than 300 grit ANSI.
I have been using loose Silicon carbide powder on mine just because that's what I have on hand. Do I need to buy aluminum oxide powder, or is it okay to keep using the silicon carbide?. I purchased my stones slightly used from a friend who wasn't a fan of them, but after I lapped/dressed them, I really enjoy them!
It really doesn't matter as long as they are close to the same grits. I use Alox because it costs about half that of Sic. Brown Alox and black Sic are the least friable of each type so for dressing stones, any stones, they will last the longest.
@Columbia Gorge Stoneworks okay cool, that was my assumption, but i really enjoy these stones, so the last thing i want is to damage them. Thank you for the response!
@@nathenwallis5664 I'd tell you aluminum oxide is better bet than sic for this job. You could even use an even milder abrasive as all you go for is wearing the resin down a bit. aluminum oxide is quite low cost, but I use a mild stripping abrasive to lap my resin bound diamond stones. It's considerably less abrasive than aluminum oxide but it still does the job for keeping the resin in check. I think it prolongs the life of the stone while allowing for a high degree of maintenance on it so it's always cutting the way I want.
Will a glass stone work to dress the 80, in lieu of using sand? Thank you for the videos.
I don't know what a glass stone is?
Columbia Gorge Stoneworks Hi, thanks for the reply. I mean the Shapton stones.
@@bob87776 Ok. The more I learn the more I think dressing with loose abrasive and a flat plate is best, to the point that it is really the only way to do it. The 80 is the black sheep of the bunch and it really needs coarse abrasive. The finest that will work is 36 grit, which is a little finer than I like. If 60 grit is used the 80 grit stone will never reach its true potential aggressiveness. I am not sure where dressing the Matrix stones with a wet stone starts, maybe the 650 but I am not sure.
Are you applying any pressure to the stone? I always figured you just use the stones own weight so that it remains as flat as possible.
You have to apply some pressure with any of them, the coarser the stone the more pressure I use. You also have to make sure you are dressing them evenly. I use an old pair of calipers to measure all four corners every few dressings as they will become uneven over time if I don't.
Can I use a thick glass as a base plate?
Yes, glass works fine. Until it gets scratched up the abrasive will skid some so keep this in mind.
Do you use a kakbritva clamp on your sharpener? I bought one, but find the knifes won't stay still in it. Gritomatic couldn't care less, now they've made the sale.
I don't use clamps but do use very strong magnets to hold the blade to the table. I like holding the knife this way as the table is a stable reference and it is simpler to make for a one off sharpener. The best answer to your question I can give is to ask it at BladeForums on the maintenace tinkering embelishment page www.bladeforums.com/forums/maintenance-tinkering-embellishment.794/ There are many there that have first hand knowledge of your issue and will be happy to help.
Thank you for this informative video. I have one question: is the any difference between dressing on the Alox and the SiC? If i use e.g. f320 SiC powder will it ruin the bond on my 2300 and 4000 or it is just the matter of preference?
It is just a matter of preference. It doesn't matter what the abrasive is made of only what grit and how well it is graded. You are only abrading the resin so it doesn't take much.
I’m about to buy these stones , do they need to be dressed when brand new ???
EP dresses them so they are good to go when new. But, you do need to be able to dress the finer stones to maintain them, and the coarser ones if you find out how much pressure is too much. How you use them, take care of them, and dress them changes the way they cut quite a bit.
@@CGSW Thanks for the info , I have dressed my Venev stones before , I just wanted to know if it was necessary out of the box
hello, can you tell me if it can be used with petroleum jelly or olive oil?
To dress or when sharpening?
@@CGSW both for sharpening and for lifting dirt
@@user-uy9fw7wc3x I don't think those oils will work for dressing, they are too thick and the abrasive may not roll around as freely. For sharpening they kind of work but don't wash the swarf away at all. You want to wash the swarf away since it acts like loose abrasive and will prematurely wear the stones, which is only a problem on the coarsest stones. Water works best and it's only drawback is it dries too fast.
@@CGSW Thank you
Can I Buy a set from you directly?
Sorry but I can only sell them to Edge Pro.
Too messy, I'll stick with course hone.