Instructables
For my birthday I got a wood lathe and some turning chisels so I could do some pen turning.  Problem was I had to sharpen the chisels.  I already had a cheap grinder on a stand, so I tried to sharpen them freehand with very inconsistent (usually bad) results.

There are a few jigs that you can attach to your grinder that produce consistent and perfectly sharpened chisels.  Most are made in the US at a reasonable price but the frieght costs to Australia are huge.  The few jigs sold in Australia are over $100 and range towards the $200 mark.

The design I came up with is very similar to the Oneway Wolverine jig.  Many turners have made wooden versions of this jig but I decided to make a steel version.  It cost me around $50 to make.

Step 1: Design

Picture of Design
Getting as much information on commercial sharpening jigs as I could I started the design.  It was a very simple design.

Some 30mm square tubing would be attached to the board/stand the router was mounted on.  A 25mm square tube would slide trough the 30 mm tube.  A threaded knob would then lock the 25mm tube in place.  Since I wanted to change the end pieces of the jig a similar system was devised.  Initially the locking knob was to be on the side but I wasn't sure and so the final product had 3 different positions for the knob.

I was worried about too much movement of the 25mm tube inside the 30mm tube.  Ringing a steel supplier I found out that the 30mm tube comes with a wall thickness of 2mm that leaves a 26mm internal size.  Only 1/2 mm gap all around, that's a resonably close fit.  Also since the sqaure tubes have a weld on one wall and may not be perfectly square you can get a fairly tight fit.

The whole design uses only 30mm square tube, 30mm angle, and 25mm square tube.
 
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pbrown355 months ago

Nice jig ,well thought out I'm new to wood turning but have always ground my own drills and chisels buy eye.will have ago at this would possibly but a adjustable support to ajust the angle of chisel one flat and one curved,for round chisels

kleinjahr11 months ago
Nicely done. You might find Captain Eddie interesting,http://www.youtube.com/watch?v=5i9RDnJHz9g
Very very impressive.... I just finished my lathe sharpening center with the wolverine system. before I did that though I was using a shop made wood version that gave inconsitant results especially with a six inch wheel..

You have done a FINE job on this Great job!
rimar20002 years ago
Interesting, thanks for sharing.
It is nice isn't it?I just picked up another grinder this weekend. It needs some work. I am loosening it all up with my PB Blaster.
Those old motors are stronger than present.

You remind me that I have to replace my WD40, thanks.
I'm sure if you spend all kinds of money you can still get nice motors today. The good old ones can be a lot cheaper. $5 for that one. I just took the arbors off of it today and wire wheeled the rust off of them. Now I have to take the rest of it apart, clean it, and paint it. I run a dude workshop where everything has to be nice, dude!

I bet you could brew up a better penetrating oil than WD-40. Then write an Instructable about it!
Very good initiative that of restore and beautify the old engine.

No, for me WD40 is the summum! Surely developers had earn a lot of money, they deserve it. One of the great ideas of WD40 was to give it a pleasant smell.
I have the grinder painted now so I figured I'd give you an updated picture of it:

http://i.imgur.com/nj6Lj.jpg

I still have to wire it back up.
Nice motor!
I need to make something like the tool rests in this article for it. I also need to figure out where I am going to set it up. I am getting a little crowded here.
I have the motor all apart and am cleaning it up now to paint.

One thing PB Blaster isn't is good smelling. It used to be worse though.
MR.Geo2 years ago
Do you have any ideas on how to sharpen skew chisels? I could use an oil stone freehand but currently I'm not skilled enough for that.
profpat2 years ago
great instructable, ingenious idea!
vincent75202 years ago
Perfect ! …
Thanks for sharing !…