Topic: Circular cutting blades

[A1welderman]

Does anyone have or know of a jig for sharpening circular cutting blades like the ones in a pizza cutter, my wife has a cutter for material (fabric) and i would like to sharpen it.

Cheers A1welderman.

[grepper]

I have sharpened pizza cutters with good enough results.

You might be able to use the small knife jig if you can clamp the thing close to the wheel.  Another idea is to just rest the handle of the cutter on the control bar.

Spin the wheel by hand while it’s in contact with the grindstone.  Always keep it moving when it’s in contact with the grindstone or you will get flat spots. 

You can probably do with with a little experimentation.

[Herman Trivilino]

Does anyone have or know of a jig for sharpening circular cutting blades like the ones in a pizza cutter, my wife has a cutter for material (fabric) and i would like to sharpen it.

If you can remove the wheel from its handle you could mount it in a drill press, lathe, or even a drill clamped in a vise.  Then while it's turning, touch it with a small stone or other abrasive. Finish with a dab of honing compound on a scrap piece of leather.

I have not tried this, but it seems to me it would work.

[Rob]

That's a very creative approach and I'm certain it would work.  If it were in a lathe (screwed through the centre hole onto a backing board held in chuck jaws for example) you would have the advantage of the toolrest which is very manoeuvrable to fix the position of whatever abrasive you chose to use.

Nice one Herman.

[SharpenADullWitt]

The style pizza cutter I have used, looks more like a machete (friends restaurant), so I don't have a round one to try.  That said the SVD-185 has a jig with it for smaller turning cutters and I am wondering if that could be used with larger wheels like the pizza wheel? (certainly not as large/awkward or dangerous as the slicer blade from another thread)
If not, while spacing would have to be figured out (is the bar long enough to get back far enough) you could use a dowel with a screw in the end, to hold the blade.

[grepper]

Or just the reverse of Herman’s idea:  If you can remove the wheel and mount it in a hand drill, you could just press the wheel against a stationary abrasive.  You might even be able to press it against the Tormek grindstone.