Could be any number of things. Most likely one is that the blades haven’t been sharpened properly. But to eliminate everything else I’d make sure everything was set up properly. Check that there is no dust between the knives and the block. Take them off, clean the block and put them back on. Check that the under knives are gap free when the blades come down to cut. You can adjust them using the three screws on the rebate support runner. Once you’ve checked that try again and make your cut. If recently sharpened they made a hash of it. Get them to redo them. If they’ve sharpened the flat side they’ve ruined them.
The blades get bent under repeated presure causing the problem shown in this video. Try to put a small ruler against the flat surface of the blade and you should see a gap close to the sharp edge, as the thinner part of the blade has bent inwards ( away from the ruler). I took my blades to a surface grinder place and ground the surface ( very little , about 0.1 mm) and the blades are working like new. Surface grinding the flat side of the blade and of course only the shiny area. They have to grind until no old surface left untouched specially close to the sharp edge, not even tiniest amount. Costed me AU$70 a set for the grinding. Also to minimise this problem in the future it is probably a good idea to cut little by little and avoid cutting a big chunk in one shot.
Looks like duff blades. Did you find that someone had ground both sides of the blade - when they are only supposed to grind the sharpened bevelled side?
Its normal I guess , thats why for wide mouldings you should put on 2 or 3 the blade height, in this kind of wide mouldings I guess in 3 It would not have any problem.
Could be any number of things. Most likely one is that the blades haven’t been sharpened properly.
But to eliminate everything else I’d make sure everything was set up properly. Check that there is no dust between the knives and the block. Take them off, clean the block and put them back on. Check that the under knives are gap free when the blades come down to cut. You can adjust them using the three screws on the rebate support runner. Once you’ve checked that try again and make your cut. If recently sharpened they made a hash of it. Get them to redo them. If they’ve sharpened the flat side they’ve ruined them.
The blades get bent under repeated presure causing the problem shown in this video. Try to put a small ruler against the flat surface of the blade and you should see a gap close to the sharp edge, as the thinner part of the blade has bent inwards ( away from the ruler). I took my blades to a surface grinder place and ground the surface ( very little , about 0.1 mm) and the blades are working like new. Surface grinding the flat side of the blade and of course only the shiny area. They have to grind until no old surface left untouched specially close to the sharp edge, not even tiniest amount. Costed me AU$70 a set for the grinding. Also to minimise this problem in the future it is probably a good idea to cut little by little and avoid cutting a big chunk in one shot.
How many price
Looks like duff blades. Did you find that someone had ground both sides of the blade - when they are only supposed to grind the sharpened bevelled side?
Prize kya h
this problem exist but plz solve it
Could any one guide ! Difference between Guillotine Miter manual pedal vs Mitre saw electric. Which supports best for photo frame making ?
I have the same problem, how did you solve it?
Its normal I guess , thats why for wide mouldings you should put on 2 or 3 the blade height, in this kind of wide mouldings I guess in 3 It would not have any problem.
Ножи просто заточить нужно.