by Paul Kribs » Wed May 25, 2005 1:26 pm
Stuffer, I agree with Oddley. The probability is that you mincer blade and plate is not sharp. I do mine on a flat diamond stone and it really does make all the difference. I would say that the price an engineering firm would charge you, would pretty much cover the cost of a diamond stone, and would be more than you paid for the appliance, but you will get years of use from it... I find mine indispensable. It sharpens chisels, plane blades and knives as well. The one I use is from Diamite. I have bought cheaper diamond sharpeners from 'screwfix' but these are not very good.
If you do attempt to sharpen the blade and plate, always keep good even pressure on the centre, making sure it is flat at all times. A way to find out if they are flat or not is to coat the cutting surfaces with indelible ink felt tip and give it a few rubs up and down the stone.. I personally wouldn't try to sharpen this kind of thing on an ordinary stone, which has a tendancy to wear unevenly. Also, do both sides of the plate, then it doesn't matter what way round you use it.
Regards, Paul Kribs