Hollow Grind on Your Knife | Hollow Bevel Grind Jig | GET THE JIG PLANS
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- Опубліковано 17 гру 2015
- GET THE JIG PLANS HERE
www.belnapcustomknives.com
How to Get an AWESOME Hollow Grind on Your Knife with a hollow grind jig.
This is the first production BK Skeleton Skinner hitting the grinder for a wicked hollow grind.
I built this 2" x 72" sander myself. Then when I built the hollow grinding jig to help me get accurate grinds in a short time.
I started Knife making as a project to make a personal gift for each of my children. The first three knives that I made with hand files to do the shaping of the bevels. This is a long labor intensive process. I did make a wooden bevel filing jig which helped me keep the bevels at the desired angles.
After make the first three knives I decided that for the rest of the knives I would get an inexpensive grinder to speed the process along. I found a Delta 1" x 42" sander on craigslist for $100.00 and bought it. Using this grinding I was able to shave 18 hours off of the time it was taking me to make a knife.
I used the small belt sander to make the rest of the knives. When I was done I realized that I had really enjoyed learning how to make knives and the work involved in making them. But I was not too interested in spending very long times to make them. So I determined to upgrade my equipment. The cost of purchasing the desired equipment was more than I was willing to spend. The other choice available was to build it myself. I already had the skills to build it and had several of the key components sitting around the garage unused. I researched for a while to see what level of performance I wanted from my 2" x 72" sander build. It needed to have plenty of power for heavy stock removal tasks, I wanted it to have speed so I could build knifes quickly and finally it must be versatile so I could use it to do all of the specific types of grinding that may be required in knife making. It turned out fantastic. I have a series of the sander build on my channel if you care to see the design and build.
Next I felt I needed to improve my skills in the area of knife design and production so I could control the cost of my knives to a point that would be affordable to a larger group of potential customers. This meant that for some of my designs I would use CNC machines to do work that I could not do at a comparable price. In order for this to be possible I would need to learn how to get my ideas into CNC compatible format. To make this happen I started learning CAD with DraftSight. It was not nearly as hard as I thought it would be and I kick myself for not learning it much sooner. The CAD use has opened up an entirely new universe of creative options for me as a knife maker. I am not an expert with it by any means but I have been able to use it well enough to come up with some fantastic profiles that can then be economically cut on a CNC laser.
I also outsourced the heat treatment process's. The steels that I use are often referred to a super steels. They require very specific and sometimes complex conditions for proper heat treatment. The temperature ranges for getting best properties are very narrow. Some of them need to be heated in an oxygen free environment to near 2000 degrees then quenched and tempered to -300 degrees. There is no way I could do all of this satisfactorily or competitively on cost.
The areas that I am able to add value competitively to the knife making process is in the design, and finish of the knife. So this is where I have decided to focus my personal knife making energies.
I feel that I have so far accomplished my desired goal of being able to create very high quality original knife designs that are competitively priced.
My knife making has been a adventure and I am pleased to be able to share it with viewers on youtube. Thank you for your interest and support. Please remember to rate, share, and subscribe. - Навчання та стиль
Everyone talking about the knife. But this version of Seminole wind is amazing.
You definitely make it look simple. Great job on building the jig.
Wow, that's an awesome jig!!
That is awesome. Efficiency at work.
+Doug Bishop Thanks. It gets better. I started using a carrier that allows me to do flat grinds, hollow grinds, and final sharpening in the jig. ua-cam.com/video/UBgJDXWfLmE/v-deo.html
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
I LOVE THIS, YOU SIR ARE MY NR1 KNIFE MAKER
Very cool jig !
A great piece! The work of an artist.
Hi Garry, Thanks for watching and commenting.
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
I love your story.and that you give your cad stuff away for free.great knife and grinder/setup :-)
awesome jig! Thanks for sharing.
I definitely will keep an eye out for it. This really is some great engineering!
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
That's a great set up you have if one day I can afford it I'd just like to have half heck a quarter of what you've showed here great job keep it up one idea the implement a cooling system while your grinding that way you don't have to dunk in water use a double tube system one on top of the other the top one being your water supply turn the water on to a steady drip and the bottom tube being air supply let the air blow the water to the desired area and you'll be able to keep the steel cooler and be able to save on materials the bucket could stay under the grinder so it could catch the spray oh yea on the tubing use like a 1/4 in copper tubing stacked one on top of the other for about 4 inches and the have them to split or Y apart so you can attach your air and water and of course put a shut off valve for water
Fantastic jig
+Xyienced Thanks. I helps me keep the lines even clean while still letting me go fast.
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
Pretty damn, F'n awesome looking blade. Good job. I also like the hollow Jig, and music is cool too! Man you rocked this one!
J
thanks
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
Good, simple equipment. Do I want a $2,500 2x72 grinder? Sure. But it would probably make more sense for me to start with something simpler. Right now I just have a file jig built and I'm hand filing the bevels in. Quite a workout by the time you're done, especially on a larger knife.
I'm still diggin' the jig.
+Ernest Sheffield Thanks. I made a couple of changes to get it ready for this first production laser cut blank to run on it. It did great.
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
how much for one with a set of handles on it?
That song though lol "blow like you'll never blow agaaaain" fuck ya man, blow on.
Cool jig, I bet if you added a strip of poly carbonate material on the edge guide it would slide freely vs. binding metal on metal. Heck all the surfaces could benefit from this no?
I have made nearly 40 of these so far and the materials have improved a great deal since this prototype guide made from scrap metal. ua-cam.com/video/QPR4OxvZPkc/v-deo.html
guys how do i get the sizes of the jig. In the drawings there are no sizes. Can someone supply a complete set of drawings? Are these sizes in metric? Which part of the jig must be inline with the centre of the wheel?
greatly appreciated
What do you call that plunger gizmo pushing the motor for quick pully change? Ive got same setup but no slick way to rapid change. Thx
Toggle clamp
Do you have those plans in pdf. That is a great jig
Www.belnap custom knives.com if you search Multi Guide Pro X you can see latest. I have some parts available for old version that would make your diy much simpler.
Will that work on a 8 inch wheel
Yes
Hi,beautiful blade!
How does the jig work,could you show it?
Thanks Check out this playlist. It shows the new jig I built to replace this one and some of the videos go into detail on the jig.
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
I've seen a couple dozen. That seems fastest and accurate.
+Xyienced I can do one of these blanks to pre-heat treat grind in under ten minutes, then post heat treat finish and polish of bevel in under 5 minutes.
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
maybe it's the angle but that looks a little too thin to heat treat .
+THE Justin Schmidt I usually grind them to .020-.030" before heat treat. What thickness do you use? The 440C and A2 has done well at that thickness. I have done 8 of these from 1095 and they did good as well?
+BigIronTV normally .040 buy hey man if it's working for you keep doing your thing I'm not hating. pretty sick blade actually.
Thanks. I use Peter's Heat Treat and straightening is included in the cost of heat treating. The 8 1095 blades I did at myself. They were mainly practice to get the geometry fine tuned before I committed to the full plate of 440C blanks. Do you post pictures of your work anywhere?
+BigIronTV no man I'm still very new to knife making.
Me too. Just been doing it a little over a year. let me know if you post some I would like to check them out.
plans don't show ? 404 error :(
www.belnapcustomknives.com/index.php/product/hollow-and-flat-grind-bevel-jig/
can U sent me drawings
www.belnapcustomknives.com/index.php/product/hollowflat-grind-bevel-jig-plans/
Cool video, just couldn't take the cheesy ass music...