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Posted by Jerry on November 21, 2009, 6:09 am
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I must be very slow because it took me over 6 minutes (I know, it's the
piece of s Gibbs).
http://www.fotothing.com/photos/229/229a40449b1e2506701b241100bf5005.jpg?ts=1258801741
Anyone that thinks it should take 1 minute has his head in the clouds.
Making tools takes very little time, it almost doesn't count.
But I would not want to work that way every day. I like to put in a
description of the part, rough material, each tool and operations or at
least groups of operations.
I created the geometry using shortcuts as fast as I could but in real life
if I try to save time like this I will end up with a lot of scrap.
Jerry
> To All:
>
> Ok, here is a simple part to program. Triangle-Circle-Square. Here's what
> it should resemble after cut part rendering/verifying.
>
> http://i233.photobucket.com/albums/e...hoto/Test1.jpg
>
> Now it is just a 2 1/2 axis part, I wouldn't bother trying to make it a
> solid unless you really think it would be faster to program in your CAM
> system. The steps are .500" deep, and the overall height is 1.5"
>
> We could do a 3 axis profiled/surfaced part later, if this little test is
> popular.
>
> Here are some dimensions.
>
> http://i233.photobucket.com/albums/e...hoto/Test2.jpg
>
> The holes are 1/4-20 tapped 1/2 deep on a 1" bolt circle with a .010-.015
> chamfer on the top. I used a 1" end mill for the contouring, Rough it
> leaving .005 stock, then finish it to size.
>
> Please list your elapsed time and the CAM system you used.
>
> Here's a stopwatch if you need one.
>
> http://www.online-stopwatch.com/
>
> And I hope you have fun doing it.
>
> (BTW this exact post was sent to the CAD/CAM section of Practical
> Machinist as well)
>
> --
> BottleBob
> http://home.earthlink.net/~bottlbob
>
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Posted by BottleBob on November 21, 2009, 6:57 pm
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Jerry wrote:
> I created the geometry using shortcuts as fast as I could but in real
> life if I try to save time like this I will end up with a lot of scrap.
Jerry:
I think one added advantage to little speed tests like this is that
they can hone your skills, and make you look for ways to improve your
productivity.
On the (Gibbs specific - for you) geometry creation, I chose the
polygon feature and for the triangle just filled in "3" sides,
"Distance to Flat" 1", then "Do It". The second figure I created was
the square using the the same polygon feature, just change the sides to
"4", and click the button for "Distance to corner" 1", and "Do it".
The circle was done last with the "Radius and Two points" option.
Click any two diagonal points on the square and the circle with be
drawn centered. It will add a center point that has to be clicked off.
And you're correct this is a test of the bare bones features. To
record and save file names, or if you wanted to print out operation,
tool list, and workgroup summaries, it would entail more time.
And like I said somewhere else, I made the part a little too simple.
I just wanted something that would be quick and easy and fun, and take
under 10 minutes. Not some long onerous task with tolerance and finish
callouts. Most everyone does that at work everyday.
Oh, another little tip that came to mind while doing all this. I
normally have my mouse on right side of my keyboard, which makes me
tend to use the upper row of number keys. If someone could get in the
habit of using the mouse on the LEFT side then they could have their
hand on the number keypad and type the numbers in without looking and
still keep their hand on the mouse to change data box locations.
--
BottleBob
http://home.earthlink.net/~bottlbob
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Posted by Joe788 on November 21, 2009, 9:59 pm
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One can tweak a moped (Gibbscam) till the cows come home but it still
ain't gonna win the Indy 500
http://jonbanquer.wordpress.com/is-feature-based-cam-programming-for-those-who-cant-machine/
Gibbscam needs a total rewrite from the ground up. Where is Cimatron
going to get the money to do it?
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Posted by Jerry on November 22, 2009, 8:32 am
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And we still didn't hear how long did it take you to program this part in
all the other programs you have.
Jerry
> One can tweak a moped (Gibbscam) till the cows come home but it still
> ain't gonna win the Indy 500
>
>
http://jonbanquer.wordpress.com/is-feature-based-cam-programming-for-those-who-cant-machine/
>
> Gibbscam needs a total rewrite from the ground up. Where is Cimatron
> going to get the money to do it?
>
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Posted by Joe788 on November 22, 2009, 12:23 pm
Please log in for more thread options
> And we still didn't hear how long did it take you to program this part in
> all the other programs you have.
> Jerry
Lets put it this way:
I was the first one to post a screen shot of the solid cut part
rendering in this thread.
A CNC program can be created for this part in approximately one minute
using any CADCAM program that has the following:
1. A tool library.
2. A way to store machining knowledge. An example of the ability to
store machining knowledge would be:
http://www.dptechnology.com/en/products_knowledgebase.asp
3. The ability of the CAM system to determine features with both
automatic and interactive feature recognition.
4. For a decent cycle time and control over a broad range of different
parts interactive feature recognition and the ability to make quick
and easy changes (editing) is vitally important.
Suggest you and others keep reading the Jon Banquer blog.
The Jon Banquer blog is the leading CAM-centric blog on the internet.
If you're not reading the Jon Banquer blog you can be sure of one
thing... your competition is. ;>)
www.jonbanquer.wordpress.com
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>
> Ok, here is a simple part to program. Triangle-Circle-Square. Here's what
> it should resemble after cut part rendering/verifying.
>
> http://i233.photobucket.com/albums/e...hoto/Test1.jpg
>
> Now it is just a 2 1/2 axis part, I wouldn't bother trying to make it a
> solid unless you really think it would be faster to program in your CAM
> system. The steps are .500" deep, and the overall height is 1.5"
>
> We could do a 3 axis profiled/surfaced part later, if this little test is
> popular.
>
> Here are some dimensions.
>
> http://i233.photobucket.com/albums/e...hoto/Test2.jpg
>
> The holes are 1/4-20 tapped 1/2 deep on a 1" bolt circle with a .010-.015
> chamfer on the top. I used a 1" end mill for the contouring, Rough it
> leaving .005 stock, then finish it to size.
>
> Please list your elapsed time and the CAM system you used.
>
> Here's a stopwatch if you need one.
>
> http://www.online-stopwatch.com/
>
> And I hope you have fun doing it.
>
> (BTW this exact post was sent to the CAD/CAM section of Practical
> Machinist as well)
>
> --
> BottleBob
> http://home.earthlink.net/~bottlbob
>