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some Trend Diamond plate question

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Forum topic by RonaldChevalier posted 10-21-2021 01:01 PM 558 views 0 times favorited 17 replies Add to Favorites Watch
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RonaldChevalier

5 posts in 40 days


10-21-2021 01:01 PM

Topic tags/keywords: trend diamond sharpening

Hey all, just wondering how many of you have used or use Trend Diamond plates. My first experience with it wasn’t all that great… I guess I was applying too much pressure, and after two chisel intialization it was worn bare on both long edges and dished in the middle. I really don’t think i was pressing all that hard to be honest… The second stone, I checked from the start and it already had a dish to begin with. Standing a straight edge across the width of the plate and i could see a sliver of light between the two of them when viewing them from the side. To anyone with current past experience with these plates, would you say this is normal? Do these wear out if you aren’t gentle with them, and is it within the normal tolerance to have a slight dish to them? Thanks in advance.


17 replies so far

View Ocelot's profile

Ocelot

3561 posts in 3920 days


#1 posted 10-21-2021 03:45 PM

I’m not familiar with Trend, but I had a $120 DMT that was not flat.

I currently use thin diamond plates that I can place on any flat surface and which will flex a little to conform to the underlying surface. They are probably 1/16th inch thick.

-- I intended to be a woodworker, but turned into a tool and lumber collector.

View DevinT's profile

DevinT

2095 posts in 249 days


#2 posted 10-21-2021 04:35 PM

I have and use Trend diamond plates.

The amount of pressure you want is firm enough to hold a grape but not enough to squish the grape.

The first plate I received was not flat.
The second plate I received was not flat.
The third plate I received was FLAT.

I never used the first two. Sent them back immediately after seeing they were not flat. I purchased through Amazon and they were more than happy to take the defective plates back. I didn’t even have to mail them—just took them to the nearest Whole Foods and dropped it off, open box and everything.

While I can be miffed over the fact that the first two stones were not flat, the thing works so dang well that I have forgiven this.

If you can see light between the plate and straight edge, RETURN IT and get a replacement that is flat.

I have been using mine for about a year now and it does not dish with use. Get a flat one.

I would like to say that this is not the norm, but I am actually seeing a lot of reviews that the first one is not flat. My case where I had to get a third one is rather rare. I’ve only known one other person besides myself that had two non-flat stones arrive in a row.

-- Devin, SF, CA

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RonaldChevalier

5 posts in 40 days


#3 posted 10-21-2021 06:01 PM

Thanks Devin, maybe i’ll order another one and see if it’s flat, and return it if it isn’t.
Ocelot, is the thin diamond plate you are currently using also DMT?

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Ocelot

3561 posts in 3920 days


#4 posted 10-21-2021 09:26 PM

No. Thin plates are generic chinese from ebay. About $8 each grit. 3×6 inch approximately.

-- I intended to be a woodworker, but turned into a tool and lumber collector.

View Rich's profile (online now)

Rich

7559 posts in 1872 days


#5 posted 10-22-2021 04:50 AM

It sure sounds like your plate is a bad one. I’m not sure of the wisdom of buying and returning multiple times when there are better options out there.

I’ve never used diamond plates other than the DMT brand with full diamond coverage. Right now, I’m using Pride brand water stones in 240, 400, 1000 and 8000 grits, and have a DMT DiaFlat 4” x 10” 160 grit plate that I use to flatten them. The lapping plate is good since regular flattening stones require flattening themselves periodically. The DiaFlat is flat to +/- 0.0005” and stays that way.

Since it sounds like you’re just getting into this, take a look at water stones. They cut more efficiently than diamond and the combination stones allow you to get away with buying just two, a 240/1000 and a 3000/8000, although a four or five stone set of individual grits is nicer if your budget allows it.

Finally, the 0.3 micron 3M lapping film does a good job of finishing things off.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View OnhillWW's profile

OnhillWW

319 posts in 2514 days


#6 posted 10-22-2021 01:53 PM

Atoma plates have proved to me to be the best diamond plates out there, and of course pricy.

https://www.amazon.com/Atoma-Diamond-Sharpener-Medium-400/dp/B0031KNR2O

I offer the link to show the product, they can be purchased from many other sources. These are light years ahead of Trend plates and better than DMTs. I still have DMTs that I use but if you want the best look at Atoma. I purchased a plate with 600 grit and added to the reverse side a lower grit replacement card ( these are thin and come with an adhesive on the backside. They are less expensive than purchasing the plate so you get a double sided plate for less than the cost of 2 plates. I lay my plate on a silicone trivet when in use to keep them in place and this protects the grit on the backside as well. Also unfortunately as with many high quality/price products you need to watch for counterfeits , purchase from a Japan based seller (for Atoma products) helps to avoid this.

-- Cheap is expensive! - my Dad

View HokieKen's profile

HokieKen

19822 posts in 2421 days


#7 posted 10-22-2021 03:05 PM

I have DMT plates but any quality ones you buy should be flat and returned if they aren’t. Dishing should never be an issue with diamond plates in normal use. It’s a piece of steel with abrasive bonded to the face. It doesn’t wear like oil and water stones do. And if it was “worn bare” in less than a decade or so, there was something severely wrong with it. Like a major manufacturing screw up. You should not have to be “gentle” with diamond plates at all.

I say all of this assuming you’re talking about a plate that’s 1/4”+/- thick. If it’s something thin like the ones Ocelot is talking about, they’re a little different animal.

Edit to add: When you say your plate was “worn bare” are you sure it wasn’t just clogged? What grade were you using and were you using any kind of lubricating fluid?

-- I collect hobbies. There is no sense in limiting yourself (Don W) - - - - - - - - Kenny in SW VA

View DevinT's profile

DevinT

2095 posts in 249 days


#8 posted 10-22-2021 03:17 PM

Trend plates come with a rubber eraser that can’t unclog it, by the way.

I made the dumb-arse mistake of using the 1000 grit side to flatten my Shapton — supposed to use the 300 grit side for that — but 5 minutes of rubbing with the rubber eraser and all was good as gravy again.

-- Devin, SF, CA

View RonaldChevalier's profile

RonaldChevalier

5 posts in 40 days


#9 posted 10-22-2021 08:46 PM

I was considering giving trend a third shot but decided to pass for now.

@HokieKen – yes it is the 1/4 thick 300/1000 plate and it’s worn on the 1000 side. I guess i ended up polishing it with the back of my chisel because its nice and shiny, hehe.

@OnhillWW – I’m gonna try the Atoma 1200 for what I use the trend 1000 side for. Actually, based on what I’ve read so far, I might use it to flatten the shaptons as well and put the trend away all together.

View Ken Masco's profile

Ken Masco

899 posts in 4132 days


#10 posted 10-22-2021 09:13 PM

I just got one based on a Stumpy Nubs recommendation. I love it. It’s an aggressive addition to my Shapton kit. I highly recommend it

-- Ken

View Axis39's profile

Axis39

565 posts in 879 days


#11 posted 10-22-2021 10:18 PM

I picked up a 300/1k stone about a year and half ago, maybe? Use it all the time. It’s dead flat… And still works like it did the day I bought it.

I cannot imagine polishing the diamonds off? Is it really worn off? Or clogged?

I literally have set up and sharpened all of my chisels (probably twenty+) and all of my plane irons (10+). This has included flattening backs, setting primary bevels, etc. I’ve used window cleaner as a lubricant and honestly, couldn’t be happier with it.

-- John F. SoCal transplant, chewer uppper of good wood

View RonaldChevalier's profile

RonaldChevalier

5 posts in 40 days


#12 posted 10-22-2021 10:37 PM

yes it is really polished. here are a couple of pics.

the white hotspots are the shop light reflection:

and here is the dish:

View DevinT's profile

DevinT

2095 posts in 249 days


#13 posted 10-22-2021 10:53 PM

That looks clogged to me. Have you tried taking a rubber eraser to it?

+1 to Axis, I also use window cleaner, and I have also sharpened a dozen plus blades in a single sitting without a problem. I occasionally have to unclog it. The rubber erase that came with the thing is not a chachki, but is actually useful.

Is the dish length-wise or width-wise? Maybe you can work perpendicular to the dishing to negate it.

-- Devin, SF, CA

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RonaldChevalier

5 posts in 40 days


#14 posted 10-23-2021 12:07 AM

The dark patchy stuff were clogs yes. here it is cleaned up with the eraser, the sides are worn off. A video would show it immediately once as start rotating it, you would see how polished it is.

and here is lengthwise, there is actually a hump in the middle:

just a bad batch i guess.

View DevinT's profile

DevinT

2095 posts in 249 days


#15 posted 10-23-2021 12:17 AM

I hope nothing happened to your LN plane getting that close to the diamond plate to show the hump

-- Devin, SF, CA

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