Snowblithe
Moderator
I finally got around to fixing a gouged cutter and attempting to render usable another one that has never worked when new (I have my doubts the latter tool will work even when sharpened but it’s worth a shot).
I’m sure others have come up with similar methods but here is how I go about it.
Disassembly is just a matter of pulling it apart. I do this by hand but if your are careful you could use pliers but the plastic is brittle.
As you can hopefully see there is a not insignificant gouge in this blade as well its counterpart. I do not remember how it got there but all my other cutters are broken and this is my only hope.

To fix it you have to get rid of all the metal around it as evenly as possible. To accomplish this I wrapped 280 grit sandpaper around a straight stick with a diameter of about 12mm or roughly 1/2 inch. Then it’s just a matter of sanding down the metal only contacting the sandpaper with the blade in one direction (avoid concentrating it one spot to maintain an even radius) as indicated in the below photo otherwise you will shave off all the grit on the sandpaper. Ask me how I know...
After I was happy with the beveled side of the blade there was the inevitable bur on the flat side which I took care of with a flat 2000 grit whetstone. I’d recommend as high a grit as possible for this step because removing too much material on this side can result in a loose fit upon reassembly.
I would use great caution on reassembly and just use a vise if you have one. Barring that a piece of masking tape on either side of the body to cover the holes and prevent any appendages or digits from inadvertent amputation is advisable here. It takes a good amount of pressure to reassemble and one could easily do some damage. Safety first.
That said. It’s best to properly arrange the blades before covering up as it just easier to see what is going on.
Now this cutter performs better that some fancy Xicar ones I have used.
I’m sure others have come up with similar methods but here is how I go about it.
Disassembly is just a matter of pulling it apart. I do this by hand but if your are careful you could use pliers but the plastic is brittle.

As you can hopefully see there is a not insignificant gouge in this blade as well its counterpart. I do not remember how it got there but all my other cutters are broken and this is my only hope.

To fix it you have to get rid of all the metal around it as evenly as possible. To accomplish this I wrapped 280 grit sandpaper around a straight stick with a diameter of about 12mm or roughly 1/2 inch. Then it’s just a matter of sanding down the metal only contacting the sandpaper with the blade in one direction (avoid concentrating it one spot to maintain an even radius) as indicated in the below photo otherwise you will shave off all the grit on the sandpaper. Ask me how I know...


That said. It’s best to properly arrange the blades before covering up as it just easier to see what is going on.



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