Minitech Mini-Mill Series, Руководство пользователя

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MINITECH
CNC Mini-Mill User's Guide
Aligning the Machine Tool
The following processes are recommended for advanced users only. If these adjustments
need to be made please contact your authorized dealer and a qualified service technician can
perform this service. These machines go through a quality control process before delivery and
these tests have already been performed.
Minitech nor its affiliates will be responsible for damage or injury done from use of these
processes or use of the machine.
Alignment Tools
Ideally all parts of a machine are perfectly uniform, square, flat, and perpendicular or parallel
to one another. The reality is that there are tolerances to which the machine is true. A
machine can not create parts anymore accurate or precise than the accuracy or precision of
the machine itself. So it is important that the machine be adjusted properly to obtain
dimensionally accurate parts repeatedly. In order to do these adjustments and understand the
nuances of your machine you will need a set of tools. The list of recommended tools is below.
Dial test indicator with 0.0005” increments
A steel parallel bar that is accurate and uniform
A steel round bar with center drill hole in end that is accurate and uniform
Hex key set
Shim material (rolling papers)
A micrometer with 0.0005” increments
With careful attention to detail and the processes illustrated below you will be able to use the
mill to produce parts to tolerances of ~0.001”.
X/Y Table Alignment Flatness
The first step is to test the flatness of the machine table. The table is not perfectly flat. It is
good to know how flat it is so when mounting parts on the table you can make adjustments.
This will become important when mounting material or a fixture like a tail stock or rotary axis
on the table. In the pictures the red arrows indicate the direction the tool is moving relative to
the table. Understand that the tool never moves except up and down, but the position of the
machine is always referred to by the position of the tool tip. To test the flatness of the table the
process is as follows.
© 2012 Minitech Machinery Corp. 18