Damn Again!!!

Joined
Sep 23, 1999
Messages
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O.k., I accidentially had to re-learn a lesson I already taught myself! Not thinking, I used small belts to try to clean up 2 blades to get ready for heat treat. Well, I kinda wrecked them! Not really, but kinda. There I was after I made a booboo and I said to myself, "self, didn't you tell me that I wasn's supposed to use 1" wide belts on steel anymore?"

So after I changed back to a 2" belt on my 2X42 grinder, I realized 2 more things.

1) I have 100 grit belts, and 400 grit belts. Hmm... where's the 220s??? SHEESH! I'm in trouble!

2) I think the problems I am having in gettign a nice smooth finish may be in part a result of the DEEP scratches in my platen. Who would have thought that the paten that comes with a Craftsman grinder wouldn't be top quality!

Well, I can fix 1 and 2 by calling my Medicine Hat Master, Robert Dockrell. Sorta anyways. You see, I was hoping to finish a blade and sell it ASAP to make money for my trip to see Rober in August! But now I need some $$ to pay for belts and such! Knife making is lots of fun!! :p

So, here's the other problem I had though. I had a blade ready for heat treat, except for 2 holes that needed drilling and soem filework put on the blade to help cover up a mistak... er, to make the knife pretty! Well, when trying to drill a 1/4" hole I think I work hardened the steel! I ran my little press on 1720 rpm and used 3-in-1 oil as a cutting lube. I even used a cobalt 1.4" bit! So now I have to figure out something aroudn that little problem. Oh, and I can't load ANYTHING that Bruce Evans has! Bruce, and pics you post here and your web site I cannot load for some reason. I wanted to use your filework tutorial, but I can't load it!!


:cool: :cool: :cool: :cool:

Ahh..... there, that is better! Well, I think I need to go even slower with my knife making. I need to work on one blade at a time from start to finish instead of thinking og batches and economies of scale and such! I need to write down the tricks I have learned so that I will remember them (e.g., save the 1" belts for sharpening and slack belting handles....) and I need to seek out more personal instruction. Good thing I am going to see Robert in August! We are going to FORGE too, so that will be a nice change of pace.

In addition, I have had a neat idea millign about in my head about some writing I'd liek to do. I may be e-mailing soem makers that hang here about my idea and psot a thread as well. Thanks for listening. You guys are the best. ;)
 
Man it sounds like you have been having one of those days like I have been having all week.I will check on the web site and see if something is up,and since spark changed this format on here I will have to get it all figured out and see what is going on.If you need some help before I get this done email me and I will get you some pictures off that way.
Bruce
 
Crayola
What kind of steel??
First slow down your drill press to drill holes in blade steel.
If you have work hardened it you can anneal the spots you want to drill in by using an old drill bit chucked in backwards, dull end down. then run your press at a high speed and put pressure on the spot you want to drill in. Do not use any lube and run it untill the spot on the blade steel turns red. If you are using a air hardening steel ie 440C let it cool slowly by putting it in vermiculite or wood ash for an hour.
Repeate this every spot you want to drill a hole.
Then drill holes using a sharp fresh bit,lube and slow speed.
 
That's spooky! I just posted the same advice concerning spot annealing on another thread!!!

I have been in the same boat before when just touching up a blade before heat treat and knowing better, try to rush things by using the grinder instead of some other method. That was when that became just another tool box knife.

C Wilkins
 
Thanks for listening.

Robert: It is 440-C. I haven't decided what to do about that hole yet, but your tip may come in handy!

I think I'll stick with grinding larger blades too. I had much better results grindign a bigger blade than these small things!
 
Crayola, misery loves company. I thought it was just me but I think something must be in the air after reading your post.

By-THE-Way....yesterday I started cutting out slabs for a new Bowie I just finished. It's been a few weeks since I used my band saw. I turned it on and after a few seconds it bogged down....

Out came a shredded family of mice. As you said:
Damn again
 
crayola, if time is a problem ,i send out blades with boo boos and do the finish the blade when it comes back. just keep the blade cool while working it. with ATS-34 i've sent a profiled blade with just the starting bevel cut. you get a nice crisp grind instead of smearming the steel off. i had a run like yours two weeks ago while getting ready for a local show of course:rolleyes: by the way mice on toast does'nt sound so go to me.
 
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