Trad Gang
Topic Archives => How To - Resources => Topic started by: Landshark160 on July 03, 2008, 10:21:00 PM
-
Here’s a little tutorial on how to sharpen two-blade broadheads. I would put the edge attained from this method of sharpening up against any other. Since there seem to be a lot of folks who struggle with the Simmons heads, we’ll use an Interceptor for this demo.
There are two important factors in sharpening. The first is grinding a burr, or wire edge, on each side of the blade. The second is grinding this burr off. If you do not achieve a razor sharp edge, you have failed to do one of these steps completely.
Here are the items we will be using. First is a standard bench grinder with a waxed grinding wheel.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0366.jpg)
Next, I always use a Razor Edge Arrowhead Guide.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0360.jpg)
And, of course, our hone. With the Simmons heads, you must use a hone with a round or convex surface to accommodate the concave edge. This is a Hewlett Jewel Stik 3 in 1. It works extremely well with any two-blade broadhead or knife I have tried. It will even work for bleeder blades. It has a coarse grit for grinding your burr, and a medium and fine grit for burr removal. (NOTE: The finer grit you use to remove the burr, the finer your edge will be.)
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0378.jpg)
One of the main reasons people have trouble with Simmons heads, aside from the concave edge, is they lack sufficient relief in the factory grind. (This can also be the case with other brands of heads.) As you can see from this photo, the grind angle is much too steep.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0363.jpg)
What we want to do is grind relief in the blade at a much shallower angle. This will allow us to immediately begin “working” the edge of the blade. We want to take the grind to somewhere near this point. (NOTE: You will only have to grind more relief into the blade the first time you sharpen it.)
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0364.jpg)
NOTE: Even if you want to sharpen your heads with a Simmons Wheelie Sharpener or
Accu-sharp, if you grind more relief into the head, you will get a sharper edge
quicker.
There are several ways to do this, but I have found a bench grinder to be the most efficient way to remove this much metal. This is a standard medium grit wheel. To prevent heat build up, I apply wax to the wheel. (You'll want to do this frequently.)
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0368.jpg)
Mount your broadhead on a shaft, or piece of shaft, to give you better control.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0369.jpg)
Begin grinding at an extreme angle. This will take you a few tries to get a feel for it. I try to grind as close to the ferrule as possible without hitting it.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0373.jpg)
-
I'm guessin there is more a comin...that li'l silver gizmo is new to me...
I'm hopin this is at least a "12 step program"
Hi, I'm Dave and I'm sharpening impaired! :)
-
As you can see, we now have a good bit of relief ground on this edge. Now just repeat on the other side.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0374.jpg)
Once we have our relief ground, it’s time to begin grinding a burr. Place the head in the guide with approximately 1/8” gap between the guide and the ferrule. This will allow us to slide the head further into the guide later, effectively increasing our grind angle. It should look like this.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0376.jpg)
Begin grinding your burr. You will only grind on this side for now. Your burr will come up on the top side of the blade.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0379.jpg)
Since we reground the head, we will immediately begin working on the very outer edge of the blade. The shiny part of the blade shows where we have been grinding. (You have probably seen this demonstrated using a Sharpie marker.) I am using the coarse grit because I need a heavy burr that will show up for the camera. With a proper relief angle ground, I would normally just use the medium grit. As soon as you get a burr the full length of the blade, STOP grinding. (NOTE: I don’t usually grind a burr until I can see it. This is mainly for demonstration purposes. I usually feel for the burr with my finger.)
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0380.jpg)
Hopefully you can see the burr starting to come up in this photo. If you notice any stubborn spots where there is no burr, concentrate your grinding on those areas of the blade.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0381.jpg)
Now that we have a full length burr on this side of the blade, we can grind one on the other side.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0382.jpg)
Here is the burr on the other side of the blade. Hopefully you can see it a little better in this photo.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0384.jpg)
Now it’s time to start taking that burr off! First thing we want to do is slide our broadhead approximately 1/8” deeper into the guide. This will increase our grind angle and help us get rid of that burr.
It should look something like this.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0385.jpg)
-
Once again, go back to your hone. The only difference now is we are going to alternate strokes from one side to another. What grit you use will determine how many strokes it will take to remove the burr. A more aggressive grit will remove it faster, but remember, the finer grit will give you a finer edge. It may take 60-80 strokes to remove the burr with a ceramic rod, but I guarantee you will be pleased with the edge. What I did here was begin removing the burr with approximately 10 strokes with the medium grit and then I finished up with 20-30 strokes on the fine grit.
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0379.jpg)
Here is the result. When I say shaving sharp, I mean SHAVING SHARP!(This is with one light push, and not a sawing motion.)
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0388.jpg)
(http://i142.photobucket.com/albums/r100/hookedn21/DSCN0390.jpg)
Now let’s go kill something!
-
What parts are included in the Ready Edge sharpening kit? Where do I get one, and how much? Thanks for sharing Chris!
-
Yup. About 12 steps I think! :D
that sharpener system is quite the deal...
Can't wait to see what your answer to AP's query is!
Nicely done, btw, and GREAT photos! Thanks!
-
Marty, this is the Razor Edge Arrowhead guide:
http://beast.voltztech.com/~razoredge/product_info.php?cPath=22&products_id=45&osCsid=97e7cb69ae9d9a148d1438c3d49c46c6
If you want to use the diamond hone I use, this is the about the cheapest place I have found it:
http://www.knifecenter.com/kc_new/store_detail.html?s=HW123K
As long as it is round or convex, you could use any steel or diamond rod for getting a burr and knock it off with a ceramic rod. This just happens to be my favorite.
-
Doc, the way I look at it, this is a simple 3 step process.
1. Grind relief
2. Grind a burr
3. Remove the burr
I just tried to break this down as best I could. I haven't timed myself yet, but once the proper relief is ground, I think I can go from grinding a burr, to shaving sharp, in less than 3 minutes per blade. Grinding the relief in the blade takes the most time, but it's something you'll only have to do once.
-
Excellent tutorial, thanks for sharing. This same technique could be used with just about any two blade broadhead.
Moderators this tutorial needs to be locked in a spot at the top of the "PowWow" forum so we (me at least) will not be searching for it in a month or two !!!!
:pray: :pray: :pray:
-
Peak, you're right. This will work on any double bevel two blade head. It also works like a dream on knives.
-
Chris, I bring my landsharks to my brother who has a Tormac (I believe that's the correct spelling) professional knife sharping contraption and he intially told me the same thing concerning the degree of the bevel. After he is through with them though, they'll shave the hair off a gnats behind !! I would like to be able to sharpen them myself, just to be a little more self sufficent. Again Chris, excellent tutorial, thanks.
-
Well done sir! :clapper:
-
EXCELLENT How-To, Chris :clapper: Don and Sky
-
Awesome tutorial. I am currently experimenting with 160 Snuffers but have a ton of 2 blades I use too. Will have to buy these tools and try it. Thanks for putting this together!
-
Excellent Tutorial. This post inspired me to try this using my Harbor Freight belt sander.
The belts don't lay completely flat on this sander. Due to the shape of the wheels the belt has a slightly convex shape. The belt only flattens out when you press against the platen. I used the slack part of the belt and was able to get a Simmons shark and a Zwickey Delta hair shaving sharp with just the belt sander.
I used a 120 micron belt to get the new bevel then switch to a 40 micron belt, then a leather belt with white rouge. Gotta love it.
-
Great tutorial Chris :thumbsup:
-
TTT for the holiday crowd.
-
roknjs
where do u get ur belts??? i have never seen a leather belt for a sander, i would like to have one
-
Lee valley tools.
-
I have always had a problem getting these heads as sharp as I would like. I usually lose my patience and switch back to Magnus I heads.I can get them sharp lickity split. I have a few questions about the tutorial.
1. First I have never used a grinder to sharpen heads. Are you using a medium grit stone wheel or is that a cardboard wheel?
2. What kind of wax are you putting on the wheel? Plain old candle wax, bee's wax or what?
3. I assume when you are using the guide you are stroking away from your body. Maybe it don't matter but I was always taught to do it that way.
4. Lastly do you just rest the guide right on the hone? Doesn't wear the guide and the hone down?
Thanks for the turtorial for us less sharpening talented folks.
-
Good questions Joe. I wondered the same thing. Great tutorial Land Shark! Thanks!!!
-
ttt
-
Nice post, might have to give my tree sharks another try.
-
Joe, I am using a standard medium grit wheel for grinding the relief.
The wax I am using is actually called a conditioning grease that came with a cardboard wheel set I purchased. I don't know exactly what it's made up of, but it has properties similar to paraffin wax. As long as it will melt to keep the blade from building heat, I think any wax would work.
I make strokes going away for one side of the blade and toward for the other. One thing I forgot to mention is when grinding a burr, I usually go in a circular motion. When removing the burr, I just make smooth strokes. It really doesn't matter how you do it, but this is just the way I do it.
Yes, the guide rides directly on the hone. Before I started regrinding the factory bevel with the grinder, I would wear out a guide each season. But if you will grind your relief with the grinder, I wouldn't be surprised if a guide lasts 10 years or more.
As a side note, the Simmons heads you used to get when Jerry owned the company had a better angle ground on them right out of the package. They didn't look quite as polished and neat as the ones produced now, but boy would they sharpen up quick.
-
Chris,
Thanks for answering my questions. Wasn't surprised by any of you answers but it always seems to help clear things up and make learning easier when doubt is eliminated.
Thanks again for posting the tutorial, that's the kind of stuff you can never get too much of.
-
TTT, it's gettin that time of the year.
-
ttt again !
-
Would the Grizzly Sharpener System work in sharpening the Interseptor?
-
ttt
-
Originally posted by Interseptor:
Would the Grizzly Sharpener System work in sharpening the Interseptor?
Yeah, it'll work fine. I use the paper wheel a good bit, but still think you get little better edge with the guide.