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Wood-mizer MP280 - Page 59

Wood-mizer MP280
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Operation
Sizing stock
Operation doc050624 4-4
4
If you are going to produce a large amount of a moulding there is an additional lock-
ing screw to secure cutter 3. The locking screw is recessed in a hole on the top of
the carriage.
Use in- and out-feed tables. Ensure that they are mounted exactly at the same
height as the machine table. Set the out-feed table so that it slants upwards a cou-
ple of degrees. By this the board will be pressed down against the table when
reaching the last cutter, which reduces the risk of out-feed marks.
Reduce the air flow in the chip hose at cutter 2 when this cutter is to take off little
wood from the work piece. This will increase the air flow at the other cutters.
If you want to keep a roughly sawn surface on one side of the board, e.g. when
making outdoor siding that is to be painted, you let that side face the machine table
and do not start the lower cutter.
If you want to produce thinner three-sided mouldings than the machine is designed
to make, you can place a flat board on the machine table which will make the work-
piece come in a higher position in the machine.
The pressure springs of the feed rollers are to be set so that the feed rollers balance
on the workpiece. If the feed rollers lie diagonally over the workpiece they can pull
askew and, in addition, the grooves in the rollers will make deep marks in the work-
piece. Balancing the feed rollers is extra important when thin workpieces are
machined. When changing from the 2-12 m/min. feeder to the 4-24 m/min. feeder,
the pressure of the last feed roller has to be adjusted due to the weight of the plane-
tary gear.
The chip extractor moves a large amount of air. If you blow the wood debris out of a
heated room, the room will quickly become cold.
Sizing stock
This planer/moulder works best as a finishing planer/moulder. You can take rough lumber
right out of the stack and plane it smooth. However, to achieve the best results with this
machine, it is best to have your stock as close to the size of the finished product as possi-
ble. If you are planing with lumber that has a wide variance on thickness, it is best to run
this lumber through either this planer or another planer to size it to a uniform thickness
before finish planing and moulding it with this planer.
Some types of wood are prone to splintering. If you are taking too deep of a side cut, the
wood can splinter and pull into the left side cutter. You can prevent this by reducing the
depth of cut that is taken off of that side of the stock.
For certain applications such as flooring, the lumber might need to have one side ripped
to provide a straight edge. Your planer will not make a crooked board straight. If straight

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