

| Standard and
custom software for
spur and
helical gears -- software for gear geometry, gear calculations, active-mesh graphics, change gear finding, gear grinding, gear hobbing, and gear inspection. Also software for non-involute forms, non-circular gearing, and N-C operations.
Phone: (815)
963-1760
Email: sales@sofengsvc.com
FAX: (815) 963-1760 |
Standard Software -- Click on any of these program names for a description:
| GEARPACK
-
Calculations, form geometry, DXF files & graphics --
mating
gears
or single gears. HOBIT - Hobbing machine setup including a fast, accurate change gear finder. CONFORMS - Generation of mating forms -- involute, non-involute, parallel or crossed axes. FLUTES - Wheel profiles for grinding helical gears or threads or drill flutes. INVFORMS - Define a gear tooth for grinding-- involute modifications, root and tip geometry. KAYCHART - Involute chart from CMM data for a gear tooth or a plated wheel, spur or helical FEATURES - Back engineer a gear from CMM data or hob data. FITFORMS - Curve fitting, shifting, rotating, plane shifting, mirroring, form offset, etc. Graphics & other auxiliary programs Price list & how to order |
This software runs under Windows-- 95, 98, Me, 2000, NT, XP
GEARPACK--Calculations,
form geometry, and graphics for spur and helical gears--
Design single gears or mating gear pairs -- or
verify gear
print
information -- or use it to convert
gear print information into manufacturing and inspection
information
-- or look at the active mesh
of mating gears -- or get a DXF file of a gear form for your
CAD system.
Flexible input and on-screen 'help' pages greatly
simplify
data
entry. You enter the data
you know -- GEARPACK calculates all the missing
data.
For example, find the specs for
replacement gears in old, worn, or damaged machines when only
the gear center distance
and number of teeth are known.
The menu-driven options are very easy to use -- by gear designers or shop personnel.
* GEARPACK performs all these calculations (including interference & limit checks):
- Tooth thickness from overpin measure or overpin measure from
tooth
thickness.
- Tooth thickness from span measure or span measure from tooth
thickness.
- Tooth thickness from test radius or test radius from tooth thickness.
- NDP (normal diametral pitch) from pitch diameter or pitch diameter
from NDP.
- NPA (normal pressure angle) from base diameter or base diameter from
NPA.
- Helix angle from lead or lead from helix angle.
- Roll angle, roll length, tooth thickness, pressure angle, base pitch,
and other involute
information at specified diameters.
- Hob approach and overtravel distance and much other hobbing data
including
generating length and depth factor to achieve a given tooth
thickness.
* For mating gears, GEARPACK calculates (in addition to the
graphics
capability):
- Contact ratio, SAP (start of active profile) diameter, and SAP roll
angle.
- Tooth thickness based on maximum and minimum backlash.
- Minimum workable NDP (for maximum strength).
- Based on NDP input, finds center distance from helix angle or helix
angle from center distance.
- Long/short addendums based on X-factor inputs.
- Outside diameter, root diameter, gear lead, helix angle, and all
other specs.
* GEARPACK also calculates gear form data and presents a
graphics
screen
showing either
single gears or mating gears in mesh -- including
rotation
of the mesh. Mesh graphics is not
simple animation--it is totally accurate at any
magnification.
* Full graphics capability -- zoom, pan, measure, overlay, etc.
* Quickly and easily transfer the gear tooth form to a CAD
system
with
DXF file transfer so you
can use the tooth -- or the whole gear -- in your
assembly
and detail drawings. You can also
use the output directly for wire EDM or laser gear
cutting.
* Transfer the gear or gear tooth in HPGL format to a plotter
or
printer--
make hard copy of
the form or tranparencies for optical inspection.
* GEARPACK works for both external and internal involute gears
and
worms
on parallel or
crossed axes.
HOBIT--
calculates and customizes the change gears for each of your hobbing
HOBIT also includes a fast, accurate change gear
finder which
works directly to find change gears
for any given ratio. -- super fast and always the best
solution.
Setting up your whole operation -- machines and
gear tables
--
is so easy that we offer to
prepare your initial tables for you free of
charge. You
can completely define your sets of change
gears--missing gears, extra gears, etc., and HOBIT will make
the setup even if your feed gears and
index gears must share the same set.
This is not the old 'pick and try' software you may
have
already
tried, but the very best solution--
and guaranteed to fit the gearbox space without 'juggling
gears'
or recalculating over and over.
HOBIT allows compounding of up to eight gears in a
gearbox--unheard
of accuracy to achieve
any gear ratio required. There is even an option
to keep
the feed gears the same for both left
and right hand work to simplify switchover when hobbing gear
pairs that differ only in hand.
HOBIT can make your old hobbers competitive with
CNC hobbers
by reducing setup time and
providing totally accurate setups -- Barber-Colman, Gould
&
Eberhardt, Cleveland, Pfauter, any
machine (even including continuous shift and oblique feed
hobbers).
CONFORMS
-- Software for generating involute and non-involute mating
forms.
CONFORMS takes the known tooth form of a gear,
rack, or worm,
and calculates the
generated form of the mating gear, rack, or
worm.
Tooth forms may be helical, spur,
involute or non-involute, external or internal.
(Examples:
gear teeth, including root generation
and involute modifications; worms; splines;
ratchets;
sprockets; impeller rotors; hobs;
shaper cutters; seaming & rolling dies)
Mating parts may mesh at parallel or crossed axes.
The input
form may be given in any cutting
plane and the output form can be provided for any cutting
plane.
Form geometry for input and
output is lines and arcs (if your geometry is supplied in
terms
of a math function or rectangular
or polar coordinates, FITFORMS can
convert it to
line-arc geometry). Tooth form geometry
may also be imported from a CAD system, created by our
GEARPACK,
INVFORMS,
RAKFORMS, or FLUTES software, or calculated 'longhand'.
The output geometry is mathematically exact,
not
approximate.
Output may be graphically
displayed (including active mesh), transmitted to
a CAD
system, or used as input to other
programs. You can use the output
directly for wire
EDM form cutting or other N-C
operations. Output geometry can be in our own SES
format,
DXF format, HPGL format,
or generic N-C format (G1, G2, G3 codes, etc)
You don't need to be an expert--use the
built-in sample
jobs and help screens to
familiarize yourself.
- You can design your own hob or shaper cutter to generate any
form--splines,
ratchets, etc.
Common problems with generated forms are 'fill-in'
and
'undercut' because the hob design
doesn't exactly produce the form you
want. A
standard
option with CONFORMS is the
ability to 'play back' a generated form to get a
direct
comparison between the input form that
you want and the generated form you will get. You
can
specify the hob specs to the vendor
and know exactly what to expect in the finished
part.
You can also ensure that hobs from
different vendors will be the same.
- You can find the difference in the form cut by a new hob or
shaper
cutter and a form cut by a
sharpened-back hob or shaper cutter. This is very
important
for non-involute forms or involute
modifications.
- For semi-topping or preshave operations involving
protuberance,
you
can find the difference
in form when you use a hob or shaper
cutter designed
for one number of gear teeth to cut a
different number of teeth.
- You can optimize the design and mesh of impeller rotors, rolling dies, and seaming dies.
CONFORMS is available as stand-alone software, but is more
commonly
used as part of a
development system which includes the INVFORMS, GEARPACK, RAKFORMS,
FITFORMS, SCREENIT, and DXFILES software described elsewhere on these
pages.
A full-function browser is included free of charge.
FLUTES
-- Software for helical form grinding - including reverse
engineering.
FLUTES takes any helical form specified in any
cutting
plane--
transverse, axial, or normal and
calculates the axial form of the grinding wheel or milling
cutter
which will produce the given form.
Helical gear teeth, worms, drill & tap flutes, and
thread
milling are possible applications.
FLUTES also does the reverse operation by taking as
input the
axial form of a grinding wheel or
milling cutter and calculating the resulting helical form in
the transverse, axial, or normal plane.
This reverse operation also works as an automatic 'playback'
option every time you run a job to
guarantee that what-you-see is what-you-get.
FLUTES works with both internal and external
parts.
Form
geometry for input and output is
lines and arcs (if your geometry is supplied in terms of a
math
function or rectangular or polar
coordinates, FITFORMS can convert it to
line-arc
geometry). Form geometry may also be
imported from a CAD system, created by our GEARPACK,
INVFORMS,
or CONFORMS
software, or calculated 'longhand'.
Output may be sent to a CAD system, linked to other
software,
or used for graphic display
on a screen or plotter. This geometry is mathematically
exact,
not approximate. Output
geometry can be in our own SES format, DXF format, HPGL
format,
or generic
N-C format (G1, G2, G3 codes, etc).
The changing diameter of a formed grinding wheel
after
successive
truings is often a critical
factor because the wheel form is always calculated for a
particular
diameter. Use FLUTES
to determine the range through which a
wheel
diameter
can change and still produce an
accurate helical part.
- You can design grinding wheel shapes for full form helical gear grinding.
- You can find the difference when you use a plated Borazon
grinding
wheel (or any pre-designed
hard wheel) designed for a certain number of teeth and a
certain
helix angle to grind a different
gear.
- For deep forms or high helix angles, you can determine the
root
fill-in
which always makes the
difference between the form you ask for and the form you
get.
- You can design grinding wheels for external or internal
thread
forms--even
when the wheel setting
angle is not the same as the thread angle.
FLUTES is compatible with CAD systems using DXF
file
transfers.
FLUTES is available as
stand-alone software, but is more commonly used as part of a
development system which
includes the INVFORMS, FITFORMS,SCREENIT, and DXFILES
software
described in
these pages. A full-function text browser is included free
of
charge.
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INVFORMS--
Calculates a gear tooth form complete with with involute modifications,
Involute modifications can be made at
multiple points
along
the tooth flank. Modifications
can be ordinary 'K-chart' style or
'barrel-curve'
style.
Tip modification can be a full radius, a
'sweep-out'
radius,
or a chamfer. Root fillet can be a
given radius or a self-calculated full fillet.
Output can be a single tooth or space,
multiple teeth,
or the whole gear. INVFORMS makes
a graphic overlay (using SCREENIT) which
allows
direct comparison between the modified
and unmodified tooth. Geometry
output can
be sent to a CAD system using a DXF file or it
may be used directly by CONFORMS or FLUTES.
This software is menu-driven and
extremely simple to
use.
It includes on-line help screens
which explain each input--also a GEARHELP section
for
gear geometry calculations.
INVFORMS also applies to involute
splines.
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KAYCHART
-- Produces a standard involute chart using CMM inspection data.
This program will draw an involute
inspection chart
using
either the gear tooth inspection data
or the inspection data for the plated grinding
wheel
which grinds the gear. It works for
spur and helical
gears, external or
internal. Output is shown on-screen, and can be
transferred to a plotter or printer using HPGL or
DXF
format.
Most modern Coordinate Measuring Machines have the
ability to
produce an X-Y file of
data points. Kaychart can read this file (in any
format)
directly which greatly simplifies the job.
Kaychart's output is mathematically exact, not approximate,
even when the plated wheel is
used to grind a helical gear.
Kaychart is especially useful to check the errors a
plated
wheel
will produce when it is used to
grind a gear for which it was not designed.
The Kaychart software includes Features, Screenit,
Plotit,
&
Dxfiles.
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FEATURES
-- Reverse engineer gear specs from CMM inspection data or hob data.
With no other data except CMM inspection points,
FEATURES
calculates
the base circle
diameter, TIF diameter, undercut diameter and
amount of
undercut, chamfer diameter, root
diameter, outside diameter, normal base pitch, and
tooth
thickness. It also calculates the roll angle
at each of these diameters and displays the form
on the
screen. In conjunction with KAYCHART,
these same inspection points can be used to
produce a
standard involute chart showing involute
deviations.
To reverse engineer the gear from a known hob
(which may be a
short pitched hob or a
protuberance hob), it is necessary to define the
hob using
RAKFORMS which then
automatically runs FEATURES.
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FITFORMS
-- Geometry utility software does curve fitting and smoothing
to
For curve fitting, you specify the 'fit tolerance'
which is
the
maximum allowable difference
between any input point and the output line-arc curve.
A helical plane shift allows you to transfer a
geometric form
which is defined in one cutting plane
to any other cutting plane--axial to normal, transverse to
normal,
normal to axial, etc. This is a
true geometric conversion, not an approximation.
Fitforms can also combine two or more geometry
files and sort
the elements to make
a continuous form. It can also work interactively
with
SCREENIT, the screen
graphics program.
Geometry files can be imported
/ exported as DXF
files from a CAD system.
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Graphics
and other auxiliary programs:
This
software runs under Windows-- 95, 98, Me, 2000, NT, XP
PRICE LIST
(U.S.
dollars)
Effective through May 31, 2008
GEARPACK-
- - - - - - - - - -
- - $ 220.00 (includes built-in SCREENIT & DXFILES)
HOBIT- - -
- - - - - - - - - -
-
220.00
CONFORMS-
- - - - - - - - - -
- - 420.00
FLUTES - -
- - - - - - - - - -
-
420.00
FITFORMS-
- - - - - - - - - -
- - 210.00
(includes SCREENIT &
DXFILES)
INVFORMS-
- - - - - - - - - -
- - 210.00 (includes
SCREENIT &
DXFILES)
RAKFORMS-
- - - - - - - - - -
- - 120.00
SCREENIT-
- - - - - - - - - -
-
-
125.00
DXFILES -
- - - - - - - - - -
-
-
125.00
PLOTIT - -
- - - - - - - - - -
-
125.00
KAYCHART-
- - - - - - - - - -
- - 340.00 (includes
FEATURES, SCREENIT,
PLOTIT, & DXFILES)
FEATURES -
- - - - - - - - - -
- - 310.00
(includes INVFORMS, FITFORMS, & SCREENIT)
CUSTOMIZED
Machine Tables for
HOBIT- - - - - - - Free with order
CONFORMS DEVELOPMENT SYSTEM - -
- - - - 725.00
( Includes
CONFORMS, INVFORMS,
GEARPACK, RAKFORMS,
FITFORMS, FEATURES, SCREENIT, PLOTIT, & DXFILES )
FLUTES DEVELOPMENT SYSTEM - - - - - - - 625.00
( Includes FLUTES, INVFORMS, FITFORMS, SCREENIT, PLOTIT, & DXFILES )
|
Ordering: *
Phone,
fax, or email the program names you want. - Pay with Visa or Master Charge or - Give us a company purchase order and let us bill you. or - Prepay with a check or money order. (This gets you a 5 per cent discount.)
Illinois residents add 6.75 per cent sales tax. Orders from outside the US must be charged to a credit card or accompanied by payment. Bank transfer data will be provided if necessary. Software (on CD unless otherwise specified)
and printed
manuals will be shipped Phone:
(815)
963-1760
Email:
sales@sofengsvc.com
FAX: (815) 963-1760 |
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ENGINEERING
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