CPM 3V Modified Sheepsfoot WIP

strider214 said:
Looking good! I think on my next go around I'm going to do like you're doing and pick one and make a bunch of 'em.

What do you plan on doing about the burned spots?
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Doing a batch really helps. You do one really slowly and get it about where you want it then the rest all go by so smoothly and easily. As for the burned spots, nothing :D These still need to be HT'd so nothing harmed there. I'll probably send these to Texas Knifemakers Supply for HT.
 
Finally!!!!! I had no idea working ANNEALED 3V would be so difficult. Grinding it was alright, not much different from any other but boy once I started trying to get a nice preHT finish it was PAIN.

I finally, after a lot of effort, got a clean unidirectional finish..... at 80 grit. To those of you who work this stuff a lot, my hat goes off. I do not know how you do it.

Pictures will come tomorrow and then these will go off to HT.

Next time I will definitely get the precision ground stuff. :rolleyes:
 
Turborocket said:
I like.
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Me too :D

Here are some pictures taken with a crappy camera and crappy lighting. Trust me, they don't look this bad in person :rolleyes:

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So, these are full flat ground now, got a clean scratch pattern in the critical areas and I'll probably send these off to HT tomorrow. These are going to slice and cut like crazy!

A lightbox is in the works next!
 
Looking good! Very cool

I hear you on the lighting, it is tough here in the Winter I know that... I have a cheap light box but just use cool white fluorescent bulbs and toilet paper to diffuse the light in a pinch. SharpbyCoop has a great thread here on how to get set up for cheap.
 
I actually tried throwing together a quick and dirty lightbox before I took these pics but all I had on hand was a 60w incandescent. Not nearly enough light and waaaaay too much red in there. I have been reading Coop's thread and I want to build something like that asap.
 
Lookin' good Matt. BTW your blades are on the way back. Let me know if you want the tracking # and I'll email it to ya. I haven't checked Coop's thread out but I made a tent from directions I got from Tracy Mickley. The tent was an easy build and it works great. I used PVC pipe, Vellum paper from Hobby Lobby, and $5 clamp on lights with soft white bulbs from Wally World. My only problem now is my El Cheapo $60 camera. If you wanna see a pic just let me know and I'll post one for ya.

Later
 
Darrin I'd appreciate a pic of your setup, it's definitely something I need to do soon. No worries about the tracking #, it'll get here when it gets here. I am probably going to send you another batch tomorrow (not these).
 
Here ya go Matt. The frame is PVC. The light is a cheap clamp on with a soft white bulb. The top is Vellum paper and is angled from front to back. The sides are some type of plastic kind of like poster paper, I forget the exact name but its readily available at hobby stores in the art section. The bottom is 1/4" plywood with a cheap piece of felt over it. I forget exactly what I spent but I'm sure you can make one for less than $40. Like I said it works fine and with a better camera and a tripod who knows what I could do. I use this and a $60 camera to take all the pics I post. They aren't anything near Coop's work but its good enough for me. I still have trouble with glare and blur sometimes but hey, for $100 total I can't gripe.
 

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That's a nice setup Darrin! Have you tried putting up a half height reflector in the front? Just something I read in Coops thread that's supposed to help get that light spread around so there is less glare.

Good stuff and thanks for the pic, I appreciate it!
 
Thanks Matt, I feel like an idiot when I overlook obvious things like that. That may just solve my glare problems. I'm gonna have to give it a try.
 
OzarkMatt said:
Finally!!!!! I had no idea working ANNEALED 3V would be so difficult. Grinding it was alright, not much different from any other but boy once I started trying to get a nice preHT finish it was PAIN.

I finally, after a lot of effort, got a clean unidirectional finish..... at 80 grit. To those of you who work this stuff a lot, my hat goes off. I do not know how you do it.
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It really is a pain to work with. I'm currently working with 3V, S35VN and CPM D2. 3V is by far the most frustrating to finish even though the wear resistance is supposed to be less than the other two. It seems like it takes no time at all before it glazes over regardless of the belts, speed, or pressure. I've finally gotten a handle on finishing it. I use 3M Trizact CF belts at medium speed and medium pressure and I take an old scrap of machete blade to dress the belts every couple of passes. The Trizact CFs have plenty of abrasive life and will withstand being dressed that frequently.

Those knives are a great design. Good luck on finishing them. I can't wait to see them finished.
 
Thanks for the tip fumbler. That's the problem I was having, I tried every belt I had and all of them would glaze over in no time. I ended up using a ceramic and it was still giving me trouble! I'll have to try that trick with my Trizact's.
 
Well holy canoli, Fumbler, you just saved my bacon :D

I got the bevels on all of these to 400 now using an old 36 grit ceramic belt to dress the Trizact's. They look soooo much better now! I'll probably keep the flats at 80 since these will be hard use blades anyways. I do like a clean looking bevel though and I am really happy with how they are now.

I'm currently waiting on word back from Bos about what these will run me to get heat treated. I'm leaning towards using them but I haven't heard back yet and it's been a couple of days... Anybody have a favorite place to get 3V done?
 
Peters Heat Treat has done 3v for me before and the results are great. Call and ask for Brad -- he's the knife guy and he is great to work with.
 
OzarkMatt said:
Well holy canoli, Fumbler, you just saved my bacon :D

I got the bevels on all of these to 400 now using an old 36 grit ceramic belt to dress the Trizact's. They look soooo much better now! I'll probably keep the flats at 80 since these will be hard use blades anyways. I do like a clean looking bevel though and I am really happy with how they are now.

I'm currently waiting on word back from Bos about what these will run me to get heat treated. I'm leaning towards using them but I haven't heard back yet and it's been a couple of days... Anybody have a favorite place to get 3V done?
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I'm glad the Trizacts are working for you. I had used the Trizacts to finish A-2 with good results then just couldn't figure out why they didn't work on 3V. I thought the 3V had ruined the belts. I dressed one pretty hard to try and get a gouged spot out then was amazed that it cut like new afterwards.

Bos is probably great but I've never used them. I use Peter's too. Their communication is great and turnaround seems pretty reasonable (usually a week to 10 days after they get it).
 
Well, I sent these out to Peters today. Hopefully I'll be seeing them back before the new year.

Thanks for all the advice everyone, have a Merry Christmas!
 
OzarkMatt said:
I'll probably keep the flats at 80 since these will be hard use blades anyways.
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If you leave the ricassos at 80 grit, you're asking for a lot of trouble with rust and pitting if they get anywhere near water. Any exposed 3V should really be at least 400 grit. It's not nearly as touchy as O1 corrosion-wise, but it's definitely not stainless either. In my experience it's a little more likely to bloom and pit than D2 is.
 
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