Machinist needs some knife grinder advice

Nathan, be totally different and make "Billet" knives, with milled edges intead of ground, use a ball endmill to make the blade hollows. I think I'm gonna try that on my dads bridgeport! (now where's that Enco book to order a few carbide endmills...)
 
J.S. Carter said:
Nathan, be totally different and make "Billet" knives, with milled edges intead of ground, use a ball endmill to make the blade hollows. I think I'm gonna try that on my dads bridgeport! (now where's that Enco book to order a few carbide endmills...)
Click to expand...


I do. Not on a Bridgeport, but I do mill the bevels.


mill_grinding_blade.jpg

http://nathan.broadtime.com/mill_grinding_blade.jpg

However, the milled surface finish looks bad, and you can't mill it after HT, so I use the mill to remove the bulk of the material and then grind it from there. I've been doing my hollow grinding on a 10" X 2" stone grinder with coolant. This is a good tool for sharpening, but not the best for bevel grinding.

I use a square end cutter instead of a ball because it requires less fixture clearance, chatters less and the finish is not much different in this application and I grind it away anyway.
 
Well, only one more day :D I bet you can't wait ;) Good decision Nathan, you won't regret it. I'm really looking forward to seeing what comes from your bench in the near future. :thumbup:
 
Nathan, you will not regret the KMG purchase. Your going to love the tooling arm and the versatility. It is built like a machinist would built one. Now if I just knew more about machining. But me and my mill are learning. Thanks for the photo.
 
Thanx fo0r the photo's Nathan that's really cool!. I'll be honest I've never played with CNC machinary before, just oldschool stuff, pre CNC Machinary. but that blade looks good enought to me!
 
Nathan
In reading the postings – agree you can’t go wrong with a KMG

I have a Bee – similar to a Wilton square wheel & hands down the KMG makes more sense in many ways.

Looking at your photos…I’m betting you are a Bob Terzuola fan. ???


Steve
 
I agree with flatgrinder, I have made knives for 40 years and I have had them all including burr king, kmg, coote,and a grizzlly. the kmg is a fine piece of equipment and so is burr king . But for the money you cannot beat the old grizz. with a few alterations (fixing tracking) It was very simple I used an extra washer and it was solved. also bought an 8" wheel and I bought a custom knife rest from japanese woodworker . tool rest is removable and can be used on bench grinders. I also changed platen to a ceramic made a lot of difference it does not chatter.with all the extras it was 650.oo .Since you are a machinists it would not be a big problem to add another contact wheel and the motor has extra long shaft on left side I have 4 different grinding wheels on it. I had to add extra extension but , none of the others have that feature.can't be beat for the bucks .I don't think anyone would dissagree on that point.But I think you should make up your own mind on that! I still have my kmg however.
 
Credentials - hmm... this is where we are going to take this? Really?

Let's see - $650 for a Grizzly vs. $475 for a Coote. Where was the rule that said I can't run a Coote off of a buffer and get the same crap grinding stone/buffing addition you've got? Oh, there wasn't one, all I'd get with a Coote is an easy way to get VS with pulleys. Oh yeah, and a small wheel upgrade in reach.

You've used them all? You own a KMG? That's why you said that your sander broke and you had to buy a new one? You balked at the cost of a Burr-King but never considered a second KMG at half the price? Since you've got the KMG and attachments already, you could have just got a body or platen package (not much more than your decked out Griz)... even hooked it up with your buffer for the same silly four grinding wheel setup. I think the real reason you didn't is because you don't have a KMG and have never been able to compare one to a Grizz.

How about your other inflated credentials... you seem to fancy yourself an accomplished Japanese sword maker. I know exactly zero accomplished Japanese-style sword makers who use Chinese steel. In case you couldn't read that zero=0. Many use shoe lace, but the recognize that it is SHOE LACE, herringbone weave SHOE LACE, not ito. You consider nylon to be better looking than silk, but you're a traditionalist? So, let's recap - you grind cheap Chinese steel on a cheap grinder with nylon or shoe lace handles (because $1/ft is too expensive for legit ito) and you expect people to take you seriously?

In all of your 40 years of making incredible Japanese swords, you never learned about a sen or fuller scraper? Never learned where to buy grinding belts after all of those grinders you've been through? Never learned how to cut a tanto profile? Why is it, exactly, that you need to waterjet 10 or 15 tanto blanks? Could there be an easier for of knife to shape? Even without a bandsaw you should be able to do this in no time, especially will all of your grinders and machinist experience.

You called Kirby Lambert an amateur so I watched his video, I have it at home just because of your comments. It was a well done video, not too difficult to see how he wraps and nothing wrong with the wrapping.

All of your years of experience and living in Japan and "consulting" for cheap Chinese sword makers seems to have taught you well, at least in the blowing smoke arena. I don't know a single machinist or maker out there that would take a Griz over a KMG. The only people I know who would take one over a Coote believe that you should buy the Griz as a vert basic grinder, with the cheapest setup and then graduate to a KMG.

I again challenge you to show me where the Coote or KMG couldn't be made to run with the same silly setup you've got. Better yet, tell me why it's better than having a dedicated bench grinder and/or buffer, away from your belt grinder and not waiting for you to stick something into on accident.

xoxox,
Cap Hayes
 
With a name like acrid saint , you sound like a fool you know nothing about me ,how would you like to make a blade and then I will make one and we will let the other members judge who knows the knife and sword business. Is that all you do is give people problems. tamehagane is tamehagane doesn't matter who made it This is an information site not a forum for your insults.Apparently you can't read ,I never said i preferred a griz over a kmg ?? as a matter of fact I have a brand new one .what I said was it is a good grinder for the money.How many of you out there think this guy is a jerk? But, if you keep bothering me and you may need one of your cheap knives sooner than you think. Jim (bubba-san) Bieler
 
AcridSaint said:
Credentials - hmm... this is where we are going to take this? Really?

Let's see - $650 for a Grizzly vs. $475 for a Coote. Where was the rule that said I can't run a Coote off of a buffer and get the same crap grinding stone/buffing addition you've got? Oh, there wasn't one, all I'd get with a Coote is an easy way to get VS with pulleys. Oh yeah, and a small wheel upgrade in reach.

You've used them all? You own a KMG? That's why you said that your sander broke and you had to buy a new one? You balked at the cost of a Burr-King but never considered a second KMG at half the price? Since you've got the KMG and attachments already, you could have just got a body or platen package (not much more than your decked out Griz)... even hooked it up with your buffer for the same silly four grinding wheel setup. I think the real reason you didn't is because you don't have a KMG and have never been able to compare one to a Grizz.

How about your other inflated credentials... you seem to fancy yourself an accomplished Japanese sword maker. I know exactly zero accomplished Japanese-style sword makers who use Chinese steel. In case you couldn't read that zero=0. Many use shoe lace, but the recognize that it is SHOE LACE, herringbone weave SHOE LACE, not ito. You consider nylon to be better looking than silk, but you're a traditionalist? So, let's recap - you grind cheap Chinese steel on a cheap grinder with nylon or shoe lace handles (because $1/ft is too expensive for legit ito) and you expect people to take you seriously?

In all of your 40 years of making incredible Japanese swords, you never learned about a sen or fuller scraper? Never learned where to buy grinding belts after all of those grinders you've been through? Never learned how to cut a tanto profile? Why is it, exactly, that you need to waterjet 10 or 15 tanto blanks? Could there be an easier for of knife to shape? Even without a bandsaw you should be able to do this in no time, especially will all of your grinders and machinist experience.

You called Kirby Lambert an amateur so I watched his video, I have it at home just because of your comments. It was a well done video, not too difficult to see how he wraps and nothing wrong with the wrapping.

All of your years of experience and living in Japan and "consulting" for cheap Chinese sword makers seems to have taught you well, at least in the blowing smoke arena. I don't know a single machinist or maker out there that would take a Griz over a KMG. The only people I know who would take one over a Coote believe that you should buy the Griz as a vert basic grinder, with the cheapest setup and then graduate to a KMG.

I again challenge you to show me where the Coote or KMG couldn't be made to run with the same silly setup you've got. Better yet, tell me why it's better than having a dedicated bench grinder and/or buffer, away from your belt grinder and not waiting for you to stick something into on accident.

xoxox,
Cap Hayes
Click to expand...
ps the burr king was 35 years old
 
It does matter where the "tamahagane" was made... ask some contemporary Japanese smiths if they are allowed to use steel from other countries. You might not like my name, "Bubba-san", but if that's the only part that makes me look a fool then I am light years ahead of you.

I provide quite a bit of help on these forums and do my very best to not lead people astray. You give false information and poor advice... just like when you rehashed that old tanto thread and give basically the same information that was already written, with the added "wash it in some vinegar" - which is exactly what anyone who thinks they might have a collectible Japanese piece should do, right?

I made no insult until you implied that my assessment was inadequate due to my machinist background. Meanwhile, your (likely self conferred) "Journeyman" title infers only that you are still learning to be a machinist.
 
artcreek said:
How many of you out there think this guy is a jerk? But, if you keep bothering me and you may need one of your cheap knives sooner than you think. Jim (bubba-san) Bieler
Click to expand...

You've got my name, you can contact me through the NCCKG if you really intend to make good on your threats. I have a feeling, however, that you're just blowing more smoke. While you're at it, you can blow me too :jerkit:
 
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