Hollow grind advice

[striperman36]

I am looking to cut a few knives with a hollow grind. I have always done straight angle. I use a low speed delta grinder on my benchtop with a custom jig to pull the knife across the stone.

Where can I find more about hollow grinding? I eventually want to try making my own razors, but I think the degree of precision is a little beyond my novice skills at this time.

Any help would be appreciated.

Striperman36

 

[SKIVIE]

Go to www.stoutknives.com. Johnny has a Hollow grinding video that is well worth the money and will shorten your learning curve a ton. The only other advice I could give is Practice, Practice, Practice.

Shane

 

[Reg ELLERY]

The only 3 quick tips I can give are related to belt sanding wheels.

1 lock your elbows into your body so the work is less likely to bounce than at arms length.
2 use new fresh belts save the old ones for profiling only.

3 My old mate Lloyd Harding gave me a set of wood blanks may be 5 mm thick
and six diffferents blade shapes. I ground the wood very quickly compaired to steel. It will give you a good gel for the bevel you are grindin. If you can feel the bevel your grinding in wood steel is a breeze (relatively speeaking)

I could not feel them at first and ran up higher and higher on the blade until I could feel and control what I was doing.

Not is you are using a stone whel grinder it may not be a good Idea if you clog the stones with wood, aluminium , brass or other soft metal it is said that it can cause the stone to over heat and fly apart. ( posible mythe but as a safety concern I need to put it in. I have actually seen the blood soaked
pieces of a stone from a mine site work shop that had killed a bloke.

I don't know how it came to explode.

by the way most people find it easier to grind accurately going in one direction before the other. If that happens keep practicing it is normal while your mucsles and skills develope.