| Author |
Message |
Bill Chernoff
Guest
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 Posted:
Tue Jan 04, 2005 10:08 pm Post subject:
motion, etc. |
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This is looking pretty far forward for me, since I'm a beginner, but:
Is there a way, in an assembly with moving parts, to capture a text file
describing how the assembly moves? As a simple example, for 10 degrees
rotation of this crankshaft, how far does the piston move? Ideally, in this
case, I would like to receive a text file with user specified step size of
the crank rotation and the resulting piston linear motion.
Thanks,
Bill
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Wayne Tiffany
Guest
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| Posted:
Tue Jan 04, 2005 10:19 pm Post subject:
Re: motion, etc. |
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I think COSMOSMotion will do it, but that's not for a beginner.
I can picture a way that you could do it manually. Set the crank position
with a degree mate. Then put a driven dimension on the piston. Now change
your crank position by the desired increment and read & record the piston
dimension.
WT
"Bill Chernoff" <bill@star-techno.com> wrote in message
news:n4ACd.691434$Pl.671616@pd7tw1no...
| Quote: | This is looking pretty far forward for me, since I'm a beginner, but:
Is there a way, in an assembly with moving parts, to capture a text file
describing how the assembly moves? As a simple example, for 10 degrees
rotation of this crankshaft, how far does the piston move? Ideally, in
this
case, I would like to receive a text file with user specified step size
of
the crank rotation and the resulting piston linear motion.
Thanks,
Bill
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Dale Dunn
Guest
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| Posted:
Tue Jan 04, 2005 10:36 pm Post subject:
Re: motion, etc. |
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Extreme Design and Programming used to have free monthly macros, and one of
them was an excel-based macro that could make a graph of one component's
movement relative to another. You should be able to extract what you want
from that.
They don't seem to have a monthly macro site anymore, but I have a copy
I'll try to email to you.
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Bill Chernoff
Guest
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| Posted:
Tue Jan 04, 2005 10:38 pm Post subject:
Re: motion, etc. |
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Thats kind of what I had in mind for the manual method. All the motions I
want to capture are angular rotation motions with linkages and crank-arms,
so I pictured a fixed degree wheel and a pointer attached to the part in
question. It'd be nice to automate the process, though.
Bill
"Wayne Tiffany" <wayne.tiffanyRMVJUNK@asi.com> wrote in message
news:3401grF44tk83U1@individual.net...
| Quote: | I think COSMOSMotion will do it, but that's not for a beginner.
I can picture a way that you could do it manually. Set the crank position
with a degree mate. Then put a driven dimension on the piston. Now
change
your crank position by the desired increment and read & record the piston
dimension.
WT
"Bill Chernoff" <bill@star-techno.com> wrote in message
news:n4ACd.691434$Pl.671616@pd7tw1no...
This is looking pretty far forward for me, since I'm a beginner, but:
Is there a way, in an assembly with moving parts, to capture a text file
describing how the assembly moves? As a simple example, for 10 degrees
rotation of this crankshaft, how far does the piston move? Ideally, in
this
case, I would like to receive a text file with user specified step size
of
the crank rotation and the resulting piston linear motion.
Thanks,
Bill
|
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| Back to top |
|
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Gary Knutson
Guest
|
| Posted:
Wed Jan 05, 2005 7:49 am Post subject:
Re: motion, etc. |
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You might wish to look at Analytix, which is a nifty little program for
doing all kinds of linkages. You can set the increments of movement and
record the outputs. It provides acceleration, velocity and loads for a
variety of situations. There is a trial version available. And no, I
don't work for Saltire.
http://www.saltire.com/ax.html
Gary
Bill Chernoff wrote:
| Quote: | Thats kind of what I had in mind for the manual method. All the motions I
want to capture are angular rotation motions with linkages and crank-arms,
so I pictured a fixed degree wheel and a pointer attached to the part in
question. It'd be nice to automate the process, though.
Bill
"Wayne Tiffany" <wayne.tiffanyRMVJUNK@asi.com> wrote in message
news:3401grF44tk83U1@individual.net...
I think COSMOSMotion will do it, but that's not for a beginner.
I can picture a way that you could do it manually. Set the crank position
with a degree mate. Then put a driven dimension on the piston. Now
change
your crank position by the desired increment and read & record the piston
dimension.
WT
"Bill Chernoff" <bill@star-techno.com> wrote in message
news:n4ACd.691434$Pl.671616@pd7tw1no...
This is looking pretty far forward for me, since I'm a beginner, but:
Is there a way, in an assembly with moving parts, to capture a text file
describing how the assembly moves? As a simple example, for 10 degrees
rotation of this crankshaft, how far does the piston move? Ideally, in
this
case, I would like to receive a text file with user specified step size
of
the crank rotation and the resulting piston linear motion.
Thanks,
Bill
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P.
Guest
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| Posted:
Wed Jan 05, 2005 2:14 pm Post subject:
Re: motion, etc. |
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This is not difficult. It involve a little macro programming and a
layout sketch.
Set up an angle mate on the crank.
Set up a layout sketch to capture the length of a line with one end
fixed and the other attached to the piston top.
Record a macro setting the crank angle and add in the readout of the
line length via a driven dimension. Then in the macro open a text file
and write the numbers out. Put a for loop in the macro and drive the
angle that way. |
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