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From: Esprit on 23 Jul 2010 01:23
Hi All,

I'm having a bit of a problem with Sheetmetal press tools.

I'm trying to make a die to press some text into an aluminium plate.
Rather than modelling each individual letter, I've modelled them in a
single block, like it'll be done for real.

The press tool looks like this:

http://i34.photobucket.com/albums/d129/esprit350/Stuff/NTForm.jpg

The selected face (green) is the tool stopping face.

However, when I apply this forming tool to a sheetmetal part, the
resultant part looks like this:

http://i34.photobucket.com/albums/d129/esprit350/Stuff/NTPress.jpg

As you can see, the pressing is exactly as I want, EXCEPT it's
mirrored, which is very strange.

Now, usually you'd use the REAR face of the tool as the stopping face
and this is what I think is throwing it out. However, if I cut the
rear block away, SolidWorks cannot handle a press tool as a multiple
body part.

Now, the obvious workaround is to create a mirror part and use that...
but form tools aren't allowed external references (even when broken).

So the workaround is to re-model it as a mirror from the start.

Other than using the cheating workaround, is there anything else
anyone can think of to help me out here?

Thanks in advance,

George.
From: Deepak Gupta on 25 Jul 2010 22:10
Did you tried using TAB (button on the keyboard) to change the
direction after you placed the form tool. If you haven't used tab
earlier, then press TAB while you seeing a preview of form tool during
its placement or face selection. I hope I'm clear.

Deepak Gupta
SW2009 SP4.1
SW2007 SP5.0
http://gupta9665.wordpress.com/

"Please consider the environment before printing this email"

On Jul 23, 10:23 am, Esprit <george.madde...(a)gmail.com> wrote:
> Hi All,
>
> I'm having a bit of a problem with Sheetmetal press tools.
>
> I'm trying to make a die to press some text into an aluminium plate.
> Rather than modelling each individual letter, I've modelled them in a
> single block, like it'll be done for real.
>
> The press tool looks like this:
>
> http://i34.photobucket.com/albums/d129/esprit350/Stuff/NTForm.jpg
>
> The selected face (green) is the tool stopping face.
>
> However, when I apply this forming tool to a sheetmetal part, the
> resultant part looks like this:
>
> http://i34.photobucket.com/albums/d129/esprit350/Stuff/NTPress.jpg
>
> As you can see, the pressing is exactly as I want, EXCEPT it's
> mirrored, which is very strange.
>
> Now, usually you'd use the REAR face of the tool as the stopping face
> and this is what I think is throwing it out. However, if I cut the
> rear block away, SolidWorks cannot handle a press tool as a multiple
> body part.
>
> Now, the obvious workaround is to create a mirror part and use that...
> but form tools aren't allowed external references (even when broken).
>
> So the workaround is to re-model it as a mirror from the start.
>
> Other than using the cheating workaround, is there anything else
> anyone can think of to help me out here?
>
> Thanks in advance,
>
> George.

From: Esprit on 26 Jul 2010 01:56
On Jul 26, 2:10 pm, Deepak Gupta <guptasolidwo...(a)gmail.com> wrote:
> Did you tried using TAB (button on the keyboard) to change the
> direction after you placed the form tool. If you haven't used tab
> earlier, then press TAB while you seeing a preview of form tool during
> its placement or face selection. I hope I'm clear.
>
> Deepak Gupta
> SW2009 SP4.1
> SW2007 SP5.0http://gupta9665.wordpress.com/
>

Deepak,

Thanks for the suggestion, I never knew about that!

Sadly, this doesn't help me much at all. Using the TAB function seems
to work the same as pressing it from the other direction. I've done a
test and done the following:

1. Apply to front face
2. Apply to front face, TAB pressed
3. Apply to rear face
4. Apply to rear face, TAB pressed

Numbers 1 and 4 come out the same as do numbers 2 and 3.

I can get the pressing coming out looking correct from the front but
debossed instead of embossed... or if the pressing is made to go in
the right direction, the text is mirrored.

I've done a workaround by designing up a mirrored press tool, which
gives me the right result, but obviously if I want to make drawings of
this press tool, it won't be what I want my toolmakers to actually
build.

Regards,

George Maddever.
From: Deepak Gupta on 26 Jul 2010 04:32
Can you put the form tool here to test/check

Deepak Gupta
SW2010 SP4.0
SW2009 SP4.1
SW2007 SP5.0
http://gupta9665.wordpress.com/

On Jul 26, 10:56 am, Esprit <george.madde...(a)gmail.com> wrote:
> On Jul 26, 2:10 pm, Deepak Gupta <guptasolidwo...(a)gmail.com> wrote:
>
> > Did you tried using TAB (button on the keyboard) to change the
> > direction after you placed the form tool. If you haven't used tab
> > earlier, then press TAB while you seeing a preview of form tool during
> > its placement or face selection. I hope I'm clear.
>
> > Deepak Gupta
> > SW2009 SP4.1
> > SW2007 SP5.0http://gupta9665.wordpress.com/
>
> Deepak,
>
> Thanks for the suggestion, I never knew about that!
>
> Sadly, this doesn't help me much at all. Using the TAB function seems
> to work the same as pressing it from the other direction. I've done a
> test and done the following:
>
> 1. Apply to front face
> 2. Apply to front face, TAB pressed
> 3. Apply to rear face
> 4. Apply to rear face, TAB pressed
>
> Numbers 1 and 4 come out the same as do numbers 2 and 3.
>
> I can get the pressing coming out looking correct from the front but
> debossed instead of embossed... or if the pressing is made to go in
> the right direction, the text is mirrored.
>
> I've done a workaround by designing up a mirrored press tool, which
> gives me the right result, but obviously if I want to make drawings of
> this press tool, it won't be what I want my toolmakers to actually
> build.
>
> Regards,
>
> George Maddever.

From: Deepak Gupta on 27 Jul 2010 10:16
George ,

I did a quick trial and it works as required expected. I just have to
use TAB key to set the position.

Deepak

> Deepak,
>
> Thanks for the suggestion, I never knew about that!
>
> Sadly, this doesn't help me much at all. Using the TAB function seems
> to work the same as pressing it from the other direction. I've done a
> test and done the following:
>
> 1. Apply to front face
> 2. Apply to front face, TAB pressed
> 3. Apply to rear face
> 4. Apply to rear face, TAB pressed
>
> Numbers 1 and 4 come out the same as do numbers 2 and 3.
>
> I can get the pressing coming out looking correct from the front but
> debossed instead of embossed... or if the pressing is made to go in
> the right direction, the text is mirrored.
>
> I've done a workaround by designing up a mirrored press tool, which
> gives me the right result, but obviously if I want to make drawings of
> this press tool, it won't be what I want my toolmakers to actually
> build.
>
> Regards,
>
> George Maddever.

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