laguna MBAND14BX110-175 Manual page 41

1. 1/4" 6 TPI. This is a small, aggressive blade that is suitable for tight curves and fast cutting
where a good surface finish of the cut is not important.
2. 1/4" 14 TPI. This is a small, fine blade suitable for reasonably tight cuts where the surface
finish is important but speed of cut is less important.
3. 1/2" 3 TPI. This is a general-purpose blade that can cut large radiuses and short sections
of straight cuts. The cut is fast but the surface finish of the cut is poor.
4. 3/4" 3 TPI. This is a general-purpose blade, which will be used for straight cuts and is
suitable for large radiuses.
5. 1" 2 TPI. This is a resaw blade, which will be used for straight cuts and is suitable for
processing veneers.
6. If you are going to be cutting hardwoods or require superb surface finish, then you should
consider purchasing a Resaw King blade from Laguna.
Rounding the back of the blade.
With most guide systems it is recommended that the back of the blade be rounded with a
stone. As the machine is supplied with Laguna ceramic guides, this is not imperative because
the ceramic will round the back of the blade as it is used. However, if you decide that you
want to round the back of the blade, a procedure follows.
A round blade back creates smooth interaction between the thrust bearing and the blade. If
the blade rotates slightly, there is no sharp blade corner to dig into the thrust bearing; also,
the rounding process smoothes the weld. A blade with a round back makes tight turns better
because the round back has smooth interaction with saw kerfs.
After the guides have been adjusted and the machine is running, hold the stone against the
back corner of the blade for about a minute. Wear safety glasses when rounding the blade.
Then, do the same thing on the opposite corner. Next, slowly move the stone to round the
back. The more pressure you put on the back, the faster you will remove the metal. Be careful
that the inside of the machine is free of sawdust because sparks could start a fire. On small
blades such as a 1/4" blade, the pressure on the back of the blade may bring the blade
forward off the front of the wheels. Therefore, be careful not to put too much pressure on the
stone. When doing this, it is also important that the upper guides be positioned right above
the stone.
The blade has teeth and extreme caution must be exercised, as your hands will
be very close to them.
Causes of blade breakage.
1. Excessive blade thickness in relation to the flywheel diameter.
2. Defective welding.
3. Incorrect tension, particularly if the blade is over tensioned; the tension spring no longer
fulfils its function.
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