JCLP said:
Can anybody educate me on which one is better for melamine.
Hi JC:
I have used all (except the ripping blades) Festool blades, the Tenyru HATB and the Freud TC blades (LU96R006M20) to cut cabinet grade melamine.
When I first started to cut melamine I used the Tenyru HATB blade. It's a good blade but when it gets dull, there is a significant tear out and like the Freud blade it is 2.2 mm thick.
If I was going to use a Tenyru blade, I wouldn't use the HATB blade again, but rather I would try 48 tooth PSL-16048D2 TCG blade.
The Freud blade is as good as the Festool blade, takes a fair amount of abuse but as I have noted before it is a 2.2mm thick blade. The only real difference is that the Freud blade has a -5 degree hook and the Festool has a -4 degree hook. For some reason Freud doesn't sell this blade in Canada so I have imported it. If you order several, the delivery and duty makes it about the same price as the Festool blade.
If your saw and rail is set up for the new(er) 2mm thick festool blades the Tenyru Freud blades are both 2.2mm thick and will cut into your splinter guard unless you reset your saw. If you have had your saw a while the swiveling segment may be seated and it's difficult to move the saw over and have it hold in the best position to save your splinter gaurd. Yes I am talking about .1-.2 of a millimeter so it may not make that much of a difference to you.
While more expensive, (I think) than the Tenyru, the 496309 Festool blade is easy to get, makes as good a cut and lasts at least as long as the Tenyru HATB blade. The Festool like the Freud blade seems to cut extremely well initially then falls off a bit and then holds for at least as long as the Tenyru. It's sometime difficult to tell when you should change/sharpen the Festool blade, but if I cannot get at least one side without any chip-out, I know it's getting to the point where I need to sharpen the blade.
When the Tenyru gets dull you know it right away. The quality of the cut falls off precipitously.
I have found that I get the best cuts if I have even support and contact on the sheet, and cut with even pressure (two hands on the saw) with the guide rail cams adjusted so there is no lateral or side to side movement on the rail. If there is any area of the sheet that's not in contact with the support, I get more chip-out on the underside.
When I cut melamine now, I make two passes for each cut, a scoring pass of about 2-5 mm and then a full pass. It usually makes the top cut cleaner, but if I am reaching and can't get even pressure on the saw the cut deteriorates.
If your toe in is too aggressive, you will get more chip out than usual. It is good to double check your toe in and I have found the factory setting is good, but my saw has been dropped (and broken) so I have had to adjust it.
Tim