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#11
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by RichColvin - October 25, 2025, 04:50:23 PMI've been thinking about this quite a bit since Yukon Jake posted the question 3 days ago.
The rotary knife jig I designed (https://sharpeninghandbook.info/Jigs-RotaryKnife.html) was a modification of the SVD-18x jig, providing a handle to make it easier to rotate the blade for a consistent sharpening process. It works; however I can no longer get the parts to make it as a stand-alone product. It could possibly be re-designed so that it could be 3D printed with a few off-the-shelf parts, and that is what I've been mulling.
In contrast, the Tormek RBS-140 Round Blade Sharpening Attachment (https://tormek.com/en/products/culinary/culinary-accessories/rbs-140-round-blade-sharpening-attachment) uses a different approach (the video on the linked site shows it well). I really like that approach; however it is noted on that page that this attachment only works on the T-2. I don't know if anyone has tried it on the other Tormek grinders (e.g., the T-4 or T-8). It looks like two of the parts are from the SVD-186-R, so I suspect it would work on the T-4 at least.
I think something with the same approach as the RBS-140 could also be designed for 3D printing. But I wonder if it would be safe enough for heavy use.
Thoughts from the community?
The rotary knife jig I designed (https://sharpeninghandbook.info/Jigs-RotaryKnife.html) was a modification of the SVD-18x jig, providing a handle to make it easier to rotate the blade for a consistent sharpening process. It works; however I can no longer get the parts to make it as a stand-alone product. It could possibly be re-designed so that it could be 3D printed with a few off-the-shelf parts, and that is what I've been mulling.
In contrast, the Tormek RBS-140 Round Blade Sharpening Attachment (https://tormek.com/en/products/culinary/culinary-accessories/rbs-140-round-blade-sharpening-attachment) uses a different approach (the video on the linked site shows it well). I really like that approach; however it is noted on that page that this attachment only works on the T-2. I don't know if anyone has tried it on the other Tormek grinders (e.g., the T-4 or T-8). It looks like two of the parts are from the SVD-186-R, so I suspect it would work on the T-4 at least.
I think something with the same approach as the RBS-140 could also be designed for 3D printing. But I wonder if it would be safe enough for heavy use.
Thoughts from the community?
#12
General Tormek Questions / Re: Closing down sale Canada
Last post by GeoBoy - October 24, 2025, 05:42:48 PMThey are not shipping to the USA.
#13
General Tormek Questions / Closing down sale Canada
Last post by John Hancock Sr - October 24, 2025, 01:23:53 AMSaw this on FB. These guys have a 25% closing down sale on and they have a bunch 'o Tormek stuff
https://canadianpreparedness.com/collections/sharpening?fbclid=IwRlRTSANnl7NleHRuA2FlbQIxMQABHugBxRsukMmknH2f8nL0GIm_Flogt5_FaHBTtDl7rXeJekvmA0By-uiIfCV8_aem_AKMEUwIUh3aoYGJFW2IPpw
https://canadianpreparedness.com/collections/sharpening?fbclid=IwRlRTSANnl7NleHRuA2FlbQIxMQABHugBxRsukMmknH2f8nL0GIm_Flogt5_FaHBTtDl7rXeJekvmA0By-uiIfCV8_aem_AKMEUwIUh3aoYGJFW2IPpw
#14
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by John Hancock Sr - October 23, 2025, 11:31:40 PMQuote from: AKMike on October 23, 2025, 10:26:33 PMThe SVD-185,186,186R all come with a shaft specifically for rotary cutters, or am I confusing blades and jigs?You are correct. Specifically designed for small carbide inserts but may also be used for round blades, depending.
Mike
#15
General Tormek Questions / Re: Tormek T7 Setup - Grinding...
Last post by John Hancock Sr - October 23, 2025, 11:29:22 PMThe MSK-250 is stainless steel as well so a highly recommended upgrade. Also get yourself a tub or tube of white lithium grease for the shaft. I also always remove any sharpening wheels between sessions.
#16
General Tormek Questions / Re: Tormek T7 Setup - Grinding...
Last post by ACoppersmith - October 23, 2025, 10:42:34 PMGreat feedback and might explain the wheel sticking... I was just about to hit the purchase button for the MSK-250 on Amazon! Let me check that out first and if not I will also contact Tormek tech support for troubleshooting.
#17
General Tormek Questions / Re: Tormek T7 Setup - Grinding...
Last post by Herman Trivilino - October 23, 2025, 10:29:00 PMYou should definitely call Tormek support and report this issue. They will be responsive and helpful and will work out a solution for you.
The MSK-250 mentioned in the previous post is an innovation that came along during the many years you had your T7 stored in your shed. It's essentially a different way of locking the wheel in place without using a wrench. Tormek support may offer to send you one for free, or they may have a different solution to your problem. I'm stumped because my Tormek is even older than yours, locked the wheel with the same nut as yours, and I never had this problem.
There's a washer on the main shaft that separates the wheel from the body of the Tormek. It sounds as if you don't have that washer installed. Take the wheel off and see if there's a washer behind it.
Also, you haven't by any chance installed the wheel inside out?
The MSK-250 mentioned in the previous post is an innovation that came along during the many years you had your T7 stored in your shed. It's essentially a different way of locking the wheel in place without using a wrench. Tormek support may offer to send you one for free, or they may have a different solution to your problem. I'm stumped because my Tormek is even older than yours, locked the wheel with the same nut as yours, and I never had this problem.
There's a washer on the main shaft that separates the wheel from the body of the Tormek. It sounds as if you don't have that washer installed. Take the wheel off and see if there's a washer behind it.
Also, you haven't by any chance installed the wheel inside out?
#18
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by AKMike - October 23, 2025, 10:26:33 PMThe SVD-185,186,186R all come with a shaft specifically for rotary cutters, or am I confusing blades and jigs?
Mike
Mike
#19
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by hansen - October 23, 2025, 08:55:08 PMYou find a round blade jig at Schleifjunkies shop:
https://schleifjunkies.de/produkt/komplett-set-fuer-rundmesser-bis-50mm-lochdurchmesser-und-300mm-scheiben/
https://schleifjunkies.de/produkt/komplett-set-fuer-rundmesser-bis-50mm-lochdurchmesser-und-300mm-scheiben/
#20
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by RickKrung - October 23, 2025, 05:46:21 PMA creative mind and a bit of ingenuity can go a long way, which is amply evident in all that Rich Colvin does.
The manual for the RB-140 is here. It states that the range of blade sizes it works with is 80-140mm. But If the mounting shaft size is 12mm, as every other Tormek jig is, it will likely "fit" on the standard USB. From there, it could be just figuring out how to make it work. 28mm is pretty small (1.1"), so that could be your biggest challenge and Rich's jig may be a better approach.
Do a search on the forum for the jig, using the term "RBS-140 Round Blade" and read what discussion there has been about this jig and round blades in general. It does return some irrelevant stuff.
The manual for the RB-140 is here. It states that the range of blade sizes it works with is 80-140mm. But If the mounting shaft size is 12mm, as every other Tormek jig is, it will likely "fit" on the standard USB. From there, it could be just figuring out how to make it work. 28mm is pretty small (1.1"), so that could be your biggest challenge and Rich's jig may be a better approach.
Do a search on the forum for the jig, using the term "RBS-140 Round Blade" and read what discussion there has been about this jig and round blades in general. It does return some irrelevant stuff.