Bought a grinder today!

[PB Knives]

This one I came over today.



I´m planning on modifying it. I want to be able to grind some blades of my own in the future.

It is very stury in its construction, so I hope I´ll be able to perhaps put a third wheel above one of the existing, and apply a flat-grind suface of some kind.

If nobody understands what I´m saying I totally understand
Either way, I´m happy!

Any tips on construction or other things greatly apreciated.

[ZDP-189]

I understand what it is, but I'm not sure it's the kind of thing that works well as a knife grinder. It looks like a 4" (100mm) wide belt, which is a bit too wide and even if you change the frame, it won't run a 2" belt properly. The contact wheel is too small, so if you run try to shape a blade on it the drive pulley will get in the way. Modifying it to take a platen as you plan might take more work than you'd expect. And make sure the sanding belt speed is right - you may have to set up a three-pulley speed control system. I myself have a linisher not unlike this one, and have encountered all these problems - hence I bought a Coote grinder later on. I'm not saying it's without it's uses - it would be great for sanding wood blocks flat or for grinding sides of blades, but it's just not ideal for grinding edges.

[PS_Bond]

On the other hand, I think R J Martin uses a 6" wide belt to clean up his grinds...

(but it is still started off with a 2"!)

[Kevin]

You could do something with that

I would epoxy a steel platen ontop of the platen it already has to raise it slightly....so I could work the plunge cuts easier.
I dont know what length that belt is, but if its one of the more common sizes that can be found in a 2 inch width, you could make your new platen 2 inches and run the belt on that..just an idea ...

I dont know what size motor it is, it looks a bit small...but if it is you could change it out.

[ZDP-189]

BTW, I didn't mean to sound so negative over your recent purchase. I just think it could cost you a lot of time and money to get right.

Sorry!

[Wayne D]

I use a 4" wide linisher to grind my knifes. I've mentioned it before on a previous post about grinders and it basically looks like yours but is on a pedastal with a 1 3/4 hp motor.

It takes a bit of practice grinding the blades, but it's usable - I do also use it for edge grinding and other stuff including shaping on the flat platen and on the contact wheel.

[PB Knives]

Thanks for the tips Coutel.
Motor is .75HP

No harm done ZDP. Sadly I have no time nor money... ;-)