Super
Filter
SuperFilter is an extremely powerful
arc filter that works inside Surfcam
under the “Add-on” menu. Under
development for 4 years we tested
SuperFilter against some of the
industries best. SuperFilter
calculations are more intense,
testing for validity of arcs and
line filtering, which give greater
accuracy with results that are very
impressive. SuperFilter also has the
ability to automatically adjust
feedrates based on arc AND corner
moves so the machine doesn't knock
your ball screws.
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1. Set the filtering to just lines,
or arcs, or, filter lines and arcs .
2. Control the feed and speed of the
path by analyzing the motion of the
toolpath records to slow the machine
down in corners
3. Control the speed a machine does
an arc move at
4. Controlling the Spindle and
feed max min's.
5. It is also possible to have
specific settings for a
specific machine!
6. Control spindle based on feedrate
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SuperFilter helps you determine the
limits of your machine with lines
speed testing tools which create
simple programs to determine the
machines sensitivity to feed
changes. SuperFilter will allow you
to tune your filter path for your
machine!
Although machine controls have improved
drastically over the years; cutting arcs
at too fast a speed will not yield a
good finish and could make an arc an
ellipse. For each machine, you can
control the federate and allowance for
an arc radius. This will limit the max
feedrate for that radius cut
producing better quality arcs! You can
also choose from linear interpolation
between points to polyline interpolation
for feedrate evaluation.
Corner
Control
Corner control Dialog allows you to
specify
1) the angle starting from zero
and moving up 2) max feedrate allowed
for the given angle of the next move
Machine controls can move 90 degrees or
less corners ( sharp corners) with the
control, but with high feedrates the
ball screws get slammed. Corner Control
will analyze the motion records and
adjust the feedrate for the speed
control. Additionally, you can set
decel and accel control which will
analyze the feedrate change and slow the
machine in increments down based on it's
sensitivity tests instead of one sudden
slowing down move.
SuperFilter also synchronizes the
spindle speed to the feedrate so that if
the feedrate changes the spindle speed
will adjust to be effectively the same
overall speed/feed. ( depends on your
machine ).
Accel/Decel
Posted code with
corner accel/decel enabled, this was
from a simple 4x3 rectangle going 200
ipm into a corner
The programed feedrate
here on the left is decellerated as it
gets close to X4.0 inches then it will
accelerate up to programmed feed again
out of the corner!
Note: Keep in
mind most newer machine's control WILL
do the corner at 200 ipm; slamming the
ball screws!
Arc
motion with accel/decel feed control
with arc speed clamping
Example of posted code with Spindle
tracking feedrate
Same
case as before, programmed feedrate is
200 ipm and as the tool gets to the
corner the spindle and feedrate adjust
to be effectively the same as well as
decel into the corner.
(
using the spindle feed control)
Example with Valve File:
3 axis
planar toolpath .375 Ball mill .001
Scallop
Surface Tol=.00003
Number of lines: 59394
Setting filters tolerance to .0001 (
most machines min value)
(Program size including Toolchanges and
all)
Surfcam Filter Results: 4192 SuperFilter
Results: 1936
Reduction of file:
Surfcam filter 85% Reduction
of file SuperFilter
94%
Arc moves:
7470
Arc moves: 3412
Line moves:
1432 Line
moves: 446
With larger files
these numbers become drastically
different, in value alone for this
simple example, SuperFilter reduced the
path by
57% more then the
standard filter!
