Axminster AW12BM Посібник користувача - Сторінка 14

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Setting up the Machine

Overview

Unlike the traditional morticing machines, which allow the table to move in 2 axis, i.e. side to side

and front to rear, the table of this morticer does not move at all. The workpiece must be moved to

achieve the side to side movement, and the placement of the back fence simulates the front to

rear movement.

Initial Set up

Introduce the chisel into the adaptor collar, press the auger up into the chuck, tighten the chuck

and withdraw the chuck key. Gently pinch the chisel in place by finger tightening the securing

bolt.

Setting the chisel auger clearance

The old rule of thumb for chisel auger clearance was known as "the one penny width". This was

achieved by introducing a penny between the locating shoulder of the chisel and the adaptor

face, with the auger locked in place and with the chisel pulled hard down on the auger. The

penny was then removed and the chisel pushed up to the adaptor face and locked in place, this

established the "one penny width" between the chisel and the auger, which for general timbers

and mortice sizes is quite adequate. Traditional mortisers normally had a cross pin in the auger

mounting mandrel, to prevent the auger being pushed back up into the chisel. The mounting

method on the newer mortisers is a chuck. It is well worth taking the extra time and care to

prepare your augers to give the correct 'reach' when 'bottomed' out in the chuck. This will

prevent the auger being pushed back towards the chisel and altering the clearance setting.

(See fig 6 )

Fig 6