Chipper blade sharpening

[Dean Lofthouse]

Looks like a good set up mate, can you round grind them on that?, been looking for an engineers that will do it so the timberwolf blades come as thet do when new, slightly concave they seem to take a better chip and last a bit longer between sharpenings.

 

Nice strategically placed protective glasses!

 

This one doesn't do concaved, I could do really short blades by grinding the other way, but all they do is use a cup type grinder on the horizonal and the blade is ever so slightly offset.

 

If you look here RBG Grinders - A Division of Wall Enterprises, INC and look at the chipper blade grinder you can see on one of the pic the blade holder slightly offset to the wheel.

 

If you find a decent saw blade sharpening firm, they will almost cirtainly have a setup for concave grinding, it is the best way of doing it and most wood working machines are ground that way.

 

With regard to the stratigically placed glasses, some people on here don't think I take health and safety seriously so the glasses were placed there on purpose

[TheTreeWiseMen]

I get stung $80 to sharpen 4 Woodsman 15X blades here. I have 2 sets, so we always have a spare, sharp set ready to go in.

[Dean Lofthouse]

I get stung $80 to sharpen 4 Woodsman 15X blades here. I have 2 sets, so we always have a spare, sharp set ready to go in.

 

Buying a second hand machine in soon pays for itself, couldn't justify buying a new one unless your going to sharpen for other people.

[Simon Rotheram]

With regard to the stratigically placed glasses, some people on here don't think I take health and safety seriously so the glasses were placed there on purpose

 

does it matter if you cant see a thing through them

[bob]

i have a blade sharpener for an exenco which would probably sharpen mostwill post a pic when i remeber to get it out and sort it

[Rob75]

The TW blades are hollow ground (This causes the blade to plane rather than cut which is more efficient). I have a Similar set up on an automatic surface grinder although I generate the required radius in the wheel. This method gives a suberb edge and allows me to control the amount of material removed very acuratley giving extended blade life. (as opposed to aftermarket plough grinding with the radius being formed by the diameter of the wheel). Pair of TW's £10. discounted for quantities.

[Dean Lofthouse]

I generate the required radius in the wheel.

 

Not sure how you mean Rob, you mean you dress the stone to the required radius

[Rob75]

The radius is dressed in the 'thickness' of the grinding wheel. i.e there is a convex radius in the wheel. I manufactured a radius dresser for this purpose along with jigs to bolt popular bades to for exact blade angle and speed of set up. Blade angle on the little TW's is very important to machine life!

[Dean Lofthouse]

Ahh, that's what I thought you meant, I nearly did that to mine for the bandit but I'd have to get a wider stone, not enough width to cover the whole area being ground

[Rob75]

That is the only draw back. And if you get a wider grinding wheel you need a lot more power to take the full width cut. More heat is also generated (even taking small cuts, so suds are important. To speed your process up try using a ceramic based wheel (either light blue or off white). More expensive than standard white wheel but much faster material removal and cooler to.