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As in what is it? Lately my knife has gotten pretty dull and it's started having trouble removing mold lines and sprue marks. What would be the best way to get its edge back? And is that even why I'm having these problems?

Honestly I'd just get a new blade, it's totally not worth sharpening.

On the other hand, a dull blade can still work well for 'scraping' off flash and also for manipulating green stuff.

Bathe it in the blood of your enemies?

 TheWaspinator wrote:
Bathe it in the blood of your enemies?

I heard it has to be virgin's blood. dont know why but it always is

You can sharpen knives with a whetstone if you know what you are doing. There are tutorials on YouTube.

If you use scalpels, Stanley knives or snap-off blade knives, it's better just to buy a new blade.

A polishing stone and a strop can work well. A strop works to realign the blade edge assuming it's not actually dinged, a polishing stone is necessary when there's actually dents and dings in the blade. Google it and you'll find lots of info.

But it comes down to how pedantic you are about having a super sharp blade. I just discard my old blades or put them in a box to use later when I don't need a good edge. but some people will buy a pack of 100 surgical blades and STILL have a sharpening stone on their desk just to touch up the tip.

I used to think such people were just crazy, but then I realised the reason why my canopy masking fails so often is even fresh blades straight out of the box my blades aren't sharp enough to use the same techniques some of the pros use I've spoken to one guy and when cutting decals or masking canopies he literally cleans up the tip of his blade every few cuts to keep the edge as keen as possible. Some people are just that crazy

Bluedorian wrote:

 TheWaspinator wrote:
Bathe it in the blood of your enemies?

I heard it has to be virgin's blood. dont know why but it always is

no shortage of that at the hobby store. though buying a new blade at the hobby store is also possible. maybe buy a new blade at the hobby store then turn around and bathe it in the blood of a virgin? one stop shopping

eosgreen wrote:

Bluedorian wrote:

 TheWaspinator wrote:
Bathe it in the blood of your enemies?

I heard it has to be virgin's blood. dont know why but it always is

no shortage of that at the hobby store. though buying a new blade at the hobby store is also possible. maybe buy a new blade at the hobby store then turn around and bathe it in the blood of a virgin? one stop shopping

Best plan I've heard so far!

Thanks everyone, I think I'm going to just end up buying a new blade.

Just go to the dollar store by a nail kit nail clippers and files do the same as the other 10$ stuff

The fragility of disposable blades makes me very wary about sharpening them in any energetic manner. You can, but for the sake of pocket change, I'd just buy a new one.

 Buttery Commissar wrote:
The fragility of disposable blades makes me very wary about sharpening them in any energetic manner. You can, but for the sake of pocket change, I'd just buy a new one.

How do you sharpen blades that you are worried about the fragility of them?