Hi,I am new to posting on this forum,and want to say thanks in advance to all of you for the great info you pass along,as it has helped me immensely already.
My issue is:I recently purchased the Incra 1000se mitre fence,and finally had time to dial it in today.(T/S is the ts3650)I was checking for square by cutting pieces at 45 deg,(using mdf)and noticed that the pieces were slightly crowned after cutting.What I mean is,the kerf was not flat after cutting(slightly high in the middle of the cut,more material removed at the start and end of the cut,than at the middle.Very minor,maybe .003"-.005",but visable when assembling the pieces.
What is causing this?Dirty or worn blade?Too fast of a feed rate entering the blade?(I tried different feed rates)Blade deflection?Just a downfall of MDF?The pieces were maybe 2" wide by 12" long.I was using the miter gauges stop and holding the wood against the fence,and passing the blade completely.The blade is square with the miter slot.
I have cut mostly mdf with this blade,but it doesn't visually appear to have alot of pitch buildup.Thanks in advance!