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#91
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.
#92
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by Drilon - October 23, 2025, 11:57:59 AMBut it fits the T2 sharpener only.
#93
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by Dutchman - October 23, 2025, 11:12:42 AMTormek has a Round Blade Sharpening Attachment:https://tormek.com/en/products/culinary/culinary-accessories/rbs-140-round-blade-sharpening-attachment
#94
General Tormek Questions / Re: Tormek T7 Setup - Grinding...
Last post by tgbto - October 23, 2025, 09:26:53 AMI'm afraid that sounds like a bit more of an investment, but you may be better off adding the MSK-250 to your setup. It will save you a lot of time and effort... Or you could try to set it just right with a bit of Loctite 243 or equivalent, let set, and get going.
#95
General Tormek Questions / Re: Sharpening 28mm Rotary Bla...
Last post by tgbto - October 23, 2025, 09:23:08 AMThe only jig I know of is described on Rich Colvin's treasure trove of a website.
It requires *a bit* of craftmanship, though...
It requires *a bit* of craftmanship, though...
#96
Hand Tool Woodworking / Re: How to grind a out of squa...
Last post by Ken S - October 23, 2025, 02:25:30 AMWhenever I see a chisel or plane iron which is way out of square, I suspect that it was totally sharpened before it was checked.
My suggestion is to mark the bevel and just take a pass or two. using your small square, check these ground passes for squareness. Repeat this if necessary. Do not
proceed to a complete sharpening until you have verified that these partial grindings are square. This may sound tedious; however, you will soon be up to speed.
Ken
My suggestion is to mark the bevel and just take a pass or two. using your small square, check these ground passes for squareness. Repeat this if necessary. Do not
proceed to a complete sharpening until you have verified that these partial grindings are square. This may sound tedious; however, you will soon be up to speed.
Ken
#97
General Tormek Questions / Tormek T7 Setup - Grinding whe...
Last post by ACoppersmith - October 22, 2025, 11:20:48 PMHi all,
I've had a "mint in the box" Tormek T7 in my shed for many years, and am just now setting it up. For installing the stone wheel, it came with a supplementary yellow instruction sheet which states to "mount the wheel with a 3/4" wrench... tighten the nut by hitting the wrench a few times with a hammer. Do not tighten by pulling the wrench as there is then a risk of damaging the center of the drive wheel"
OK... that seems a bit weird using a hammer to avoid damage, but I followed these instructions to a tee. Running the machine, the nut that holds the stone wheel kept unthreading itself and falling off. So I tightened it a bit more... the wheel now ran slowly, then after a bit of tool grinding, would stop altogether. The motor would hum but the wheel wouldn't move. When I tried moving the stone wheel by hand, there seemed to be quite a bit of torque required to move it, much more than I expected. So I loosened the nut slightly and again, when I turned the machine back on, the wheel would start slowly spinning, but the nut would loosen itself and fall off.
I'm at a loss - can anyone help? Anxious to get started sharpening my chisels and realize my investment in this machine!
I've had a "mint in the box" Tormek T7 in my shed for many years, and am just now setting it up. For installing the stone wheel, it came with a supplementary yellow instruction sheet which states to "mount the wheel with a 3/4" wrench... tighten the nut by hitting the wrench a few times with a hammer. Do not tighten by pulling the wrench as there is then a risk of damaging the center of the drive wheel"
OK... that seems a bit weird using a hammer to avoid damage, but I followed these instructions to a tee. Running the machine, the nut that holds the stone wheel kept unthreading itself and falling off. So I tightened it a bit more... the wheel now ran slowly, then after a bit of tool grinding, would stop altogether. The motor would hum but the wheel wouldn't move. When I tried moving the stone wheel by hand, there seemed to be quite a bit of torque required to move it, much more than I expected. So I loosened the nut slightly and again, when I turned the machine back on, the wheel would start slowly spinning, but the nut would loosen itself and fall off.
I'm at a loss - can anyone help? Anxious to get started sharpening my chisels and realize my investment in this machine!
#98
General Tormek Questions / Sharpening 28mm Rotary Blades?
Last post by YukonJake - October 22, 2025, 06:43:22 PMHas anyone tackled sharpening 28mm rotary blades? If so, are there jigs out there that would fit the T8?
Thanks much.
Thanks much.
#99
Hand Tool Woodworking / Re: How to grind a out of squa...
Last post by rolsen - October 22, 2025, 06:06:13 PMQuote from: dw833 on October 22, 2025, 02:48:45 PMI'm not sure which way to skew it
Just put the plane iron on the jig and then loosen both of the screws, that control the skew, the same amount, e.g. two full turns. Then screw the other one as far as it goes, you should be able to see which way the plane iron tilts.
I have to admit I'm a bit perfectionist, and always aim for accuracy, whenever I can
#100
Hand Tool Woodworking / Re: How to grind a out of squa...
Last post by dw833 - October 22, 2025, 02:48:45 PMThanks for the replies. I do have a small square, and it is square. After I realized the blades were out of square, I made sure to check everything is square. I haven't tried to skew the se-77 to get things back to square. I'll have to try that this weekend. I'm not sure which way to skew it, but I'll review the manual and do that.
Rolsen is right about handplane blades. They are all out of square a small amount and I could account it for it on the plane. Still wanted to determine what I was doing wrong.
One other thing I read is to sharpen a chisel that is square to begin with. Since it is much narrower sharpen it and determine if it is out of square. That could provide feedback. I'll try that this weekend also.
Will follow up after I sharpen again.
Rolsen is right about handplane blades. They are all out of square a small amount and I could account it for it on the plane. Still wanted to determine what I was doing wrong.
One other thing I read is to sharpen a chisel that is square to begin with. Since it is much narrower sharpen it and determine if it is out of square. That could provide feedback. I'll try that this weekend also.
Will follow up after I sharpen again.