Simple blade grinding jig

[ZDP-189]

Here's the jig I used to regrind the tip of a knife blade:

http://uberlevel.com/link2image/hhgre98c54.jpg

I recommend against attempting this without a jig of some sort, because you'll just stuff it up.

I put two pins into the corners of a block of Simon's excellent beech plywood (no worries, it doesn't destroy the block and it'll be used for a handle one day). The block is better than a typical Vise Grip, because it's position is more flexible. The vertical clearance is important too, because it allows you to lower the handle, raising the tip to keep the bevel on the belt at the right angle.

To set up, place the back of the blade against a pin and push the blade bevel flush with the belt. This sets the angle. Now, G-clamp the block in place.

When grinding a straight section, you go across both pins, and only use one pin for each side of the tip. I like to mount the sander low and look forn from above where I can see where the action is - the metal leaving the bevel as the belt does the work.

SAFETY FIRST: Make sure you clean out your sander before you start grinding. Wood powder air suspensions ignite and burn readily and piles of dust can smoulder for hours before flaming. And when you see the sparks flying off the face of that carbon steel, you'll understand why you don't mix wood dust and steel sparks.

[ZDP-189]

It's funny, but I was just searching for a blade jig and I completely forgot about this one or how effective it was.

[ZDP-189]

Here's some other things I have come across:

Veritas Jig

http://us.st12.yimg.com/us.st.yimg.com/I/yhst-96267234974469_2024_31696202

Langdon Wilson's Knife Bevel Grinding Jig

http://myhome.mweb.co.za/~20022586/jig_files/image031.jpg
http://myhome.mweb.co.za/~20022586/jig.htm

[shariyakugan]

Thank You!
I have been looking for something like this and this may be it.
I made my first knifebevel with just a file, worked well but was a lot of work.
Second knife I used a beltsander wich was a lot faster but I could only get a big angle on the bevel. I'm going to be trying these.

[Motoon]

Although the 1st jig seems very simple I do believe that it worked very well. It still allows for a free movement but keeps it under control.

[Steve George]

like the first jig, going to have a go of that
cheers

[bondy]

Iv started using a door hinge super glued at the angle you want, then clamp the knife to the hinge. not perfect but better than using files like i used to.

[I D Howe]

:D I use this mostly now, except for freehand sharpening :D :pirate:
http://img.auctiva.com/imgdata/1/0/3/1/6/7/webimg/161627451_o.jpg

http://img.auctiva.com/imgdata/1/0/3/1/6/7/webimg/161627173_o.jpg

http://img.auctiva.com/imgdata/1/0/3/1/6/7/webimg/161627321_o.jpg

[The Real Barney]

some great jigs here on display here. thanks for showing.

[ggfh666]

Seagull,

is yours standing free on the wood block? You keep it there by hand?

Not interested in selling me one, by any chance;)

[ggfh666]

doubl post.

[The Real Barney]

ggfh666

I am going to make one of those over the next couple of weeks, Its as easy to make two as one. Let me know.

Barney

[ggfh666]

ggfh666

I am going to make one of those over the next couple of weeks, Its as easy to make two as one. Let me know.

Barney

That would be great.
Please make me an offer so I can look at my budget;)

[patricweill]

Barney,
I would hate to bother you, but if you are making two jigs , would you consider making three. I would also like to have a budget idea.
Thank you in advance
Patrick

[chrism87654]

barney and if your making 3 already ,how about making 4 ?

[ZDP-189]

Oh dear Barney, you're in trouble now... a waitlist

[ggfh666]

Career change?:D

[The Real Barney]

Oh My God,

I did want to use my spare time trying to make knives not grinding jigs:O

but not everyone has facilities so here goes.

I will call it a tenner for materials, a tenner for doing it and post as is charged to me as I suspect they will be heavyish.

Please pm if interested, £10 material deposit, maximum of six to be made.

lead time anticipated around 2 weeks.

That will cover the cost of my new toys.

[Renegade Master]

Please put me down for one Barney, looks like just the thing.

PM inbound.

Dan

[Barmond]

Barney,

I'll grab the last one if it's a round half dozen.

PM inbound

[Renegade Master]

Barney

Deposit paid 8)

Cheers mate

Dan

[marcus2]

Hello Barney,I am the head of a large consortium based in China,we would be pleased to be allowing to sell your product.Please get in touch.

[ZDP-189]

I thought you were operating out of Lagos, Nigeria....

[marcus2]

:lol: :lol: :lol: :lol:
No thats my cousin the Reverend Smilie face:)

[jerbal]

I've had a go at one of these today making it from bits in the shed and now I have to make a longer platen for the grinder to try it out.
http://i266.photobucket.com/albums/ii246/peteff/jig3.jpg
http://i266.photobucket.com/albums/ii246/peteff/jig2.jpg
http://i266.photobucket.com/albums/ii246/peteff/jig1.jpg

[Bugleone]

If it would help anyone, I have just noticed that the current 'Tilgear' catalogue has an excellent sliding grinding jig constructed from alluminium extrusions with brass thumb screws and black plastic locking knobs. It is completely adjustable and unlike those jigs shown here so far is readilly adjustable against the grinding wheel itself. The price is £19.75 with VAT extra. Tilgear are an old established and excellent company with a very comprehensive tool catalogue,..they now have an embryo web site where you can aquire their interactive CD for online ordering.
www.tilgear.info

[Stew]

If it would help anyone, I have just noticed that the current 'Tilgear' catalogue has an excellent sliding grinding jig constructed from alluminium extrusions with brass thumb screws and black plastic locking knobs. It is completely adjustable and unlike those jigs shown here so far is readilly adjustable against the grinding wheel itself. The price is £19.75 with VAT extra. Tilgear are an old established and excellent company with a very comprehensive tool catalogue,..they now have an embryo web site where you can aquire their interactive CD for online ordering.
www.tilgear.info

Have you been in there recently? Where you used to be able to wander round the lot, it's now pretty much counter service with a very small area to wander. Last time I went in I was there for ages as the bloke in front of me kept asking for item after item but wasn't sure exactly what he wanted. It reminded me of the Two Ronnies...:rolleyes:

[The Real Barney]

Have you tried it Jerbal, what do you think?

[The Real Barney]

Hello All

The first four are ready.

Pics are here fully closed,

http://i356.photobucket.com/albums/oo6/therealbarney/045-1.jpg

Fully open, I estimate at 50 degrees, more than enough.

http://i356.photobucket.com/albums/oo6/therealbarney/046-1.jpg


I have made as accurate a representation as possible from the photo's earlier in the thread. I have welded the assembly rather than screws, this doesn't appear to affect the functionality. I have increased the size of the platten, this should grip a tang of 30mm in its entirety.

As previously stated the first four are ready, I will package and finalize postage costs on Monday. All being well they will be posted on Tuesday. Is everyone happy with my representation?

[ggfh666]

Yep,

looks cool.

[jerbal]

I had a go with the one I lashed up the other day, it's not as elaborate as those but it does the job. I made a platen from a piece of aluminium for my Aldi grinder just to try it out and I think with a bit of stiffening under it will be well up to the job.
http://i266.photobucket.com/albums/ii246/peteff/grinderjig1.jpg

[a6cjn]

Looks a very workable set up
I knocked up a bigger table as well. I made a bit of a frame to support it, very simple but I'm pleased with how it works
http://i165.photobucket.com/albums/u53/a6cjn/Aldi002.jpg

Chris :)

[jungle_re]

are these all taken?

[jerbal]

I'll knock you one up in the week if you're interested, I'm sure there are enough bits left in the shed. It might be slightly different to my "prototype" but it will do the same job. :D

[The Real Barney]

Jerbal the only difference as I see it is that the top hinge means that you dont have to elongate the hole for the bar. :) I almost missed it off and elongated the hole but was worried about the blade grabbing and the bar moving about wrecking the blade. Probably a needless concern.

[Skibo]

I would love one if anyone wants to make one?<><

[The Real Barney]

Hello All

What with a weekend away and a short spell in hospital I have fallen a bit behind with the manufacture. I am expecting all orders to be dispatched by Tuesday or Wednesday, at the latest, next week.

Sorry for the delay.:(

Barney

[Skibo]

Barne=y sent you another PM.Thanks<><

[chrism87654]

recieved jig yesterday thankyou barney ,it will come in handy thanks chris

[The Real Barney]

Anyone made anything yet with their grinding jig? Not a magic wand is it:D

I got the platten extended and now the bolt that hols the original bed level keeps slipping due to the extra weight.
Anyway here is my first attempt with mine a flat grind about 3/4 the way up the blade and then a slight secondary which I have Convexed.

http://i356.photobucket.com/albums/oo6/therealbarney/bushcrafter002.jpg

[jerbal]

To continue this I have made a simpler version of the jig which only uses 3 holes tapped 6mm and a piece of plate spaced to blade thickness with some washers. The plate has slots to drop over the screws for ease of altering. The back screw sets the angle and locks with a nut. I made a little blade with it on the Aldi grinder and knocked a handle up but it's not assembled or sanded yet.
http://i266.photobucket.com/albums/ii246/peteff/jig.jpg
http://i266.photobucket.com/albums/ii246/peteff/fiftyp.jpg

[Stew]

That is stupidly simple - well done! :D

[thomas]

http://i266.photobucket.com/albums/ii246/peteff/jig.jpg

Thats exactly the kinda thing i made. But i just G clamp the blade onto the angle bar:D

[kpurse]

Heres my take on it
http://i799.photobucket.com/albums/yy280/kpurse/BevelGuide2.jpg

[bradaz11]

sorry for my ignorance here... just trying to work out what your doing

so you're clamping the blade to the jig, setting the angle you want to grind the knife face to on the jig, then passing the blade across the face of the belt by sliding the jig on the platen?

[grommit]

here is one of my jigs i got off one of the top guys on BB when i first started off,poor picture sorry
http://i42.photobucket.com/albums/e319/lowrider_01/KNIVES/CIMG0349.jpg
Bri
Squint n it makes sense:lol:

[FGYT]

I just clamp the blade to a bit of 2" angle with mole grips but i can tilt the belt head to the right angle ;)

http://i118.photobucket.com/albums/o109/FGYT/Sharps/RATgrind.jpg