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28
Vision Series 5 Controller User Manual
2.5
2550 Vacuum Table
The optional vacuum table for the 2550 is split into 2 vacuum zones for the left and right sides of the
table. Each side has a valve to control the vacuum applied to it. Vacuum from the supplied vacuum pump
is connected to the vacuum tube (not shown) under the machine's base. The vacuum is then split
between the two valves. Note the open and closed positions for these valves shown below.
Using the Vacuum Table
Under ideal conditions, the maximum hold down force applied to the material is roughly 10 psi. Therefore,
the total amount of force applied to a 5" x 5" piece of material is roughly 250 lbs. If the vacuum table is
covered with a porous sacrificial material, such as MDF, the vacuum hold down force is significantly less.
Attempting to hold down material smaller than 10" x 10" is not recommended, as the material may move
during processing.
When using the vacuum table, only open the valve to the section which you are using. If the entire table
is being used, open both valves fully. Cover the vacuum table with your material if possible. If your
material does not cover the entire table, place scrap material over any open areas of the vacuum table to
maximize hold down.
Rubber strips are included with the vacuum table and should be placed in the vacuum slots nearest the
edge of the table, or nearest the edge of your material, whichever is smaller. These strips are designed to
seal off the edges around the table in order to minimize vacuum loss.
Sacrificial Materials
A common material to place over the vacuum table surface is MDF (particle board). MDF is porous
enough to allow air to flow through it when placed on top of the vacuum table surface. MDF can be
resurfaced with a fly cutting tool many times and is relatively inexpensive to replace. DO NOT attempt to
cut through materials placed directly on the vacuum table surface. Doing so may damage the vacuum
table permanently.
© 2019 Vision Engraving Systems
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