Toohr #3 knife sharpener

Bdtry said:
Try item 33016335854 for the raw aluminum. Normal discount seems to be 30% or so, new user discount I got was 50%.
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Did you pay the 100cad with shipping? I get the 70usd price, but an extra 70usd are added for shipping (I tried US and my home country in Europe, both with shipping at same value as the sharpener). At that point, the one from the other shop with free shipping is more affordable.

777 Edge said:
No, the original Toohr clamps work well on most basic kitchen knives that I've tried. It's only for many EDC pocket knives and small blades where another set of clamps would work best.
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Is this because the original clamps are too thick and the screws are a bit long? A have quite a few pocket knives that I want to sharpen with this and was wondering if thinning down the clamps (as someone suggested) would correct the problem.
 
Fists said:
Is this because the original clamps are too thick and the screws are a bit long? A have quite a few pocket knives that I want to sharpen with this and was wondering if thinning down the clamps (as someone suggested) would correct the problem.
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Yes, for both reasons you mentioned, and also because of the clamping angle when closed + opening size of the clamps, and the flex angle when tightening the clamps.

You'll have more success with some EDC knives when you use one Toohr clamp on the flat ricasso area and the other about an inch or so back from the tip. Don't try both clamps on the primary grind section of many EDC blades or it won't clamp properly.

If you buy the Hapstone R2 lite clamps and the Hapstone to TSProf Gearconnect adapter from Gritomatic (all-out just over 30 bucks or so), then you'll have a system that can clamp many blades securely. Just note that you will also need a set of M5 thumb screws (ask Gritomatic to supply you with a set). The original Toohr thumb screws are M6, and the Hapstone clamps are M5. The Gearconnect adapters should come with a set of M5 screws, but they might be too short.

Having the choice between the original set of Toohr clamps, or a R2 lite clamp set will give you a very nice system.
 
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Fists said:
Did you pay the 100cad with shipping? I get the 70usd price, but an extra 70usd are added for shipping (I tried US and my home country in Europe, both with shipping at same value as the sharpener). At that point, the one from the other shop with free shipping is more affordable.
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No, it was 100 for the sharpener and 100 for shipping. I am in Canada so it is quite expensive. The other shop is supposed to have better packaging but they only had the red sharpener for double the cost of the silver one and another 100 shipping on top of that. If you can get free shipping from them then go for it. I also got a 50% new user discount so that brought the price down.
 
777 Edge said:
Yes, for both reasons you mentioned, and also because of the clamping angle when closed + opening size of the clamps, and the flex angle when tightening the clamps.

You'll have more success with some EDC knives when you use one Toohr clamp on the flat ricasso area and the other about an inch or so back from the tip. Don't try both clamps on the primary grind section of many EDC blades or it won't clamp properly.

If you buy the Hapstone R2 lite clamps and the Hapstone to TSProf Gearconnect adapter from Gritomatic (all-out just over 30 bucks or so), then you'll have a system that can clamp many blades securely. Just note that you will also need a set of M5 thumb screws (ask Gritomatic to supply you with a set). The original Toohr thumb screws are M6, and the Hapstone clamps are M5. The Gearconnect adapters should come with a set of M5 screws, but they might be too short.

Having the choice between the original set of Toohr clamps, or a R2 lite clamp set will give you a very nice system.
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What’s the lowest degree you can go with a chef kitchen knife? Thanks
 
Lovetolearnabouteverythin said:
What’s the lowest degree you can go with a chef kitchen knife? Thanks
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That would depend on the width of the blade. As an example (pics below), here I test clamped a 45mm wide santoku type chef's knife for your reference in the Toohr clamps. The clamps are clamped about 10mm in from the spine, so this means the edge on this blade is about 35mm beyond the tips of the clamps.

With this blade width, you can see in my pics I can easily set the angle down to as low as 7.5 degrees with the clamp screws being the limit in this specific case. (Not that I want to sharpen a knife like this at 7.5 degrees, this is just for your reference).

Angle shown on my "Axicube One"

IMG_20221022_193511.jpg

Here you can see the clearance of the stone viewed from the side:

IMG_20221022_193526.jpg

Ruler held over the blade for reference:

IMG_20221022_193559.jpg
 
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777 Edge said:
That would depend on the width of the blade. As an example (pics below), here I test clamped a 45mm wide santoku type chef's knife for your reference in the Toohr clamps. The clamps are clamped about 10mm in from the spine, so this means the edge on this blade is about 35mm beyond the tips of the clamps.

With this blade width, you can see in my pics I can easily set the angle down to as low as 7.5 degrees with the clamp screws being the limit in this specific case. (Not that I want to sharpen a knife like this at 7.5 degrees, this is just for your reference).

Angle shown on my "Axicube One"

View attachment 1965562

Here you can see the clearance of the stone viewed from the side:

View attachment 1965561

Ruler held over the blade for reference:

View attachment 1965563
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Wow thanks! I was wondering, how safe is this because some people were concern about the knife facing you instead of away. Especially when you go to rotate the knife.
 
Lovetolearnabouteverythin said:
Wow thanks! I was wondering, how safe is this because some people were concern about the knife facing you instead of away. Especially when you go to rotate the knife.
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Well, in my opinion it's about as dangerous or safe as anything you do with a sharp knife or any tool for that matter - it depends on the user. :)

The knife facing you with the Toohr system is the same method of sharpening with most of the popular systems, including Wicked Edge, Edge Pro, KME, TSProf, Hapstone, Ruixin, KakBritva, Kazak, Work Sharp Precision adjust, Jende Jigs, Lansky and countless other systems.
 
777 Edge said:
Well, in my opinion it's about as dangerous or safe as anything you do with a sharp knife or any tool for that matter - it depends on the user. :)

The knife facing you with the Toohr system is the same method of sharpening with most of the popular systems, including Wicked Edge, Edge Pro, KME, TSProf, Hapstone, Ruixin, KakBritva, Kazak, Work Sharp Precision adjust, Jende Jigs, Lansky and countless other systems.
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I understand lol. I just have to wear leather jacket and gloves when handling it for extra precaution! :cool:
 
777 Edge said:
Yes, for both reasons you mentioned, and also because of the clamping angle when closed + opening size of the clamps, and the flex angle when tightening the clamps.

You'll have more success with some EDC knives when you use one Toohr clamp on the flat ricasso area and the other about an inch or so back from the tip. Don't try both clamps on the primary grind section of many EDC blades or it won't clamp properly.

If you buy the Hapstone R2 lite clamps and the Hapstone to TSProf Gearconnect adapter from Gritomatic (all-out just over 30 bucks or so), then you'll have a system that can clamp many blades securely. Just note that you will also need a set of M5 thumb screws (ask Gritomatic to supply you with a set). The original Toohr thumb screws are M6, and the Hapstone clamps are M5. The Gearconnect adapters should come with a set of M5 screws, but they might be too short.

Having the choice between the original set of Toohr clamps, or a R2 lite clamp set will give you a very nice system.
Click to expand...
Thank you for the clarification and the suggestion. Looking at the Gritomatic store, just the clamps are 33usd and come with the thumbscrews (are those too short because of the extra adapter?).
Is the adapter an open design? I have a 3D printer and could print it myself.

Another thing that I cant seem to find is if the size of the stone clamp can be changed a lot. I bought a few 4" double sided Venev stones and don't know if they will fit or if I'll need to shim it somehow.

I also found what seems to be the same system but without the slider. The product number is 1005004858840001, if anyone is interested.
 
777 Edge said:
Here are some pics of what I've designed for the Toohr#3 thus far:

Extension block (bottom) and magnetic platform (top)

View attachment 1959438


Parking hook adapter for a TSProf parking hook. This works much better than the Toohr one.

View attachment 1959439


Spacer tubes for 4 and 6 inch stones so there is no need to use a bunch of springs. 6 inch stone spacer shown in pic.

View attachment 1959437


I also swapped out the M6 thumb screws for much nicer and bigger ones. The original ones are too small.

View attachment 1959436
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Cool!, where do you get these parts? I want to get the m6 screws, parking hook and spacer tube
 
Fists said:
Looking at the Gritomatic store, just the clamps are 33usd and come with the thumbscrews (are those too short because of the extra adapter?).
Is the adapter an open design? I have a 3D printer and could print it myself.

Another thing that I cant seem to find is if the size of the stone clamp can be changed a lot. I bought a few 4" double sided Venev stones and don't know if they will fit or if I'll need to shim it somehow.
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The thumb screws provided with the R2 Lite clamps are for a Hapstone bar, which is thinner than the Toohr bar so they are definitely too short (I tried mine). The TSProf Bar to Hapstone R2 clamps adapters that Gritomatic sells (www.gritomatic.com/collections/gearconnect-adapters-for-tsprof-k03-profile/products/gc-r2-k03) are supplied with M5 screws for the Hapstone Clamps, but they may or may not be too short...not sure because they are provided specifically for a TSProf bar, which is also thinner than the Toohr bar. The adapters are not open source, but they are very cheap and in stock at Gritomatic.

The stone Holder can be used with any of the common stones, including all 4 inch (or shorter) and 6 inch (or a bit longer) stones. You will just need to install a few more springs, or a spacer like in the third pic in this post of mine - (www.bladeforums.com/threads/toohr-3-knife-sharpener.1886171/post-21519628)

If you want to make yourself a spacer to enable the Toohr stone holder to work with 4 inch stones, simply make and print yourself a tube - 75mm long, 8.5mm inner diameter and 13mm outer diameter. This is what I made for myself and this is what I use for my 4 inch stones on my Toohr stone holder. This makes all my 4 inch Venev dual sided, Venev single sided, KME and CGSW stones (and others) work perfectly.

For 6 inch stones, the spacer should be 22mm long.
 
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Lovetolearnabouteverythin said:
Cool!, where do you get these parts? I want to get the m6 screws, parking hook and spacer tube
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I designed these parts for Gritomatic, so when they start selling Toohr sharpeners in future, they will have these parts available. Perhaps if you ask them nicely and place another order, then they can sell you these parts. Contact them via this link:

www.gritomatic.com/pages/contact-us
 
777 Edge said:
I designed these parts for Gritomatic, so when they start selling Toohr sharpeners in future, they will have these parts available. Perhaps if you ask them nicely and place another order, then they can sell you these parts. Contact them via this link:

www.gritomatic.com/pages/contact-us
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Wow! Thanks. What springs should I get? I am sorry, I am not familiar with workshop tools and stuff like that. lol
 
Lovetolearnabouteverythin said:
Wow! Thanks. What springs should I get? I am sorry, I am not familiar with workshop tools and stuff like that. lol
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For common 6 inch stones, you can use the long and one of the short springs together (between the handle and the stone holder). The Toohr kit comes with 2 short and 1 long spring.

The short ones are actually meant for use together with the stopper collars to set your stroke length when sharpening, but you can get by not using one of the short springs as a stopper.

For 4 inch stones, you will need a tube, 75mm long, 8.5mm inner diameter; OR a long spring with an internal diameter of about 9mm, and probably about 90mm long to pair up with the long Toohr spring. But a tube works much better in my opinion.

Go to your local hardware store and find a piece of aluminum/steel/brass tubing with 8.5mm(or a bit more) internal diameter, then have them cut you 2 pieces. 1 piece 75mm long, and another 22mm long. Even a rigid plastic tube will work fine. The long piece will be for 4 inch stones and the short piece for 6 inch stones. Pair them up with the long spring alone on the Toohr stone holder rod, just in front of the handle.
 
777 Edge said:
For common 6 inch stones, you can use the long and one of the short springs together (between the handle and the stone holder). The Toohr kit comes with 2 short and 1 long spring.

The short ones are actually meant for use together with the stopper collars to set your stroke length when sharpening, but you can get by not using one of the short springs as a stopper.

For 4 inch stones, you will need a tube, 75mm long, 8.5mm inner diameter; OR a long spring with an internal diameter of about 9mm, and probably about 90mm long to pair up with the long Toohr spring. But a tube works much better in my opinion.

Go to your local hardware store and find a piece of aluminum/steel/brass tubing with 8.5mm(or a bit more) internal diameter, then have them cut you 2 pieces. 1 piece 75mm long, and another 22mm long. Even a rigid plastic tube will work fine. The long piece will be for 4 inch stones and the short piece for 6 inch stones. Pair them up with the long spring alone on the Toohr stone holder rod, just in front of the handle.
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Thanks man!
 
777 Edge said:
Here are some pics of what I've designed for the Toohr#3 thus far:

Extension block (bottom) and magnetic platform (top)

View attachment 1959438


Parking hook adapter for a TSProf parking hook. This works much better than the Toohr one.

View attachment 1959439


Spacer tubes for 4 and 6 inch stones so there is no need to use a bunch of springs. 6 inch stone spacer shown in pic.

View attachment 1959437


I also swapped out the M6 thumb screws for much nicer and bigger ones. The original ones are too small.

View attachment 1959436
Click to expand...
I just notice the bottom extension block, what is for?
 
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