huge grinding job done

wnease

wnease

Joined
Apr 22, 2004
Messages
878
I got this done on the weekend... not my design but I ground and sanded this beast:

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Now you can't tell from the pic, but this is a big beast! That's an 18" edge and the blade is over 3"wide. I'm glad I'm not hand sanding this!

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Now for scale... it's 0.385" thick!!! I full flat ground down to about 0.030" for stability in HT. About 1lb 5oz ended up being beveled off. I've done many blades this thick and much thicker but rarely FFG on such a wide piece of steel... a lot of work involved, not so much in rough grinding but in taking off the major grinding marks from rough grinding. Finished weight is 4lb 1oz.

Bevel terminations are my pet-peeve and because this one has a specific angle as a design feature I actually sanded out a model in acrylic to practice. It's interesting that to hit the angle you want you have to grind at slightly more/less than that angle, as the bevel termination is usually slightly radiused and the intersection of a cylindrical plane into an inclined plane is geometrically interesting ... hard to explain and more intuitive on small blades. Here they are:

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In case you can't tell I'm proud of those... NAILED 'EM
 
Will, I cannot describe the sadistic smile that has creeped across my face when i saw these pics.
I cannot thank you enough for this and i am very exited to met you and shake your hand.
Im hoping to get to the show Saturday but it all depends on work but ill get there by Sunday for sure.
Thank you again.
Anth
 
Will, I know that was a tough one. Heck, just holding that huge piece of steel up to the grinder for so long is an acheivement in itself. Well done!
 
thanks everyone!

David you're right... got a little crampy at times... lucky there wasn't a serious time crunch and I could do it in stages.
 
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