L
larry
Wed, Sep 18, 2024 5:16 PM
I was asked to modify an STL by adding numbers sunk into it. The STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with the
bottoms in a V-shape, I am wondering if I can just extrude the numbers
normally, sink then into position, and tell the guy to use a V-bit for
that part.
If that will work, how deep will the V-bit cut? I assume it will cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome hearing
how.
Thanks.
I was asked to modify an STL by adding numbers sunk into it. The STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with the
bottoms in a V-shape, I am wondering if I can just extrude the numbers
normally, sink then into position, and tell the guy to use a V-bit for
that part.
If that will work, how deep will the V-bit cut? I assume it will cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome hearing
how.
Thanks.
DP
Dan Perry
Wed, Sep 18, 2024 5:32 PM
There's a new-ish experimental feature called roof() that does exactly what
you want from a 2D shape. I think you could have a challenge that perhaps
not all the bits that make up a polygon are going to be exactly the same
width, then they won't be the same depth using the roof() cmd.
roof() must be enabled in preferences.
Dan
On Wed, Sep 18, 2024 at 10:17 AM larry via Discuss <
discuss@lists.openscad.org> wrote:
I was asked to modify an STL by adding numbers sunk into it. The STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with the
bottoms in a V-shape, I am wondering if I can just extrude the numbers
normally, sink then into position, and tell the guy to use a V-bit for
that part.
If that will work, how deep will the V-bit cut? I assume it will cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome hearing
how.
Thanks.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
There's a new-ish experimental feature called roof() that does exactly what
you want from a 2D shape. I think you could have a challenge that perhaps
not all the bits that make up a polygon are going to be exactly the same
width, then they won't be the same depth using the roof() cmd.
roof() must be enabled in preferences.
Dan
On Wed, Sep 18, 2024 at 10:17 AM larry via Discuss <
discuss@lists.openscad.org> wrote:
> I was asked to modify an STL by adding numbers sunk into it. The STL is
> to be cut with a CNC router.
>
> Since I am really not sure how to make numbers that are made with the
> bottoms in a V-shape, I am wondering if I can just extrude the numbers
> normally, sink then into position, and tell the guy to use a V-bit for
> that part.
>
> If that will work, how deep will the V-bit cut? I assume it will cut so
> the point will be coincident with the bottom of the digits, but I
> really don't know.
>
> If there is a way to extrude text to do the job, I'd welcome hearing
> how.
>
> Thanks.
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
>
RW
Raymond West
Wed, Sep 18, 2024 8:15 PM
It's just not a case of cutting the shape with a v bit at constant
depth, because you will get rounded corners.
On 18/09/2024 18:16, larry via Discuss wrote:
I was asked to modify an STL by adding numbers sunk into it. The STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with the
bottoms in a V-shape, I am wondering if I can just extrude the numbers
normally, sink then into position, and tell the guy to use a V-bit for
that part.
If that will work, how deep will the V-bit cut? I assume it will cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome hearing
how.
Thanks.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
It's just not a case of cutting the shape with a v bit at constant
depth, because you will get rounded corners.
On 18/09/2024 18:16, larry via Discuss wrote:
> I was asked to modify an STL by adding numbers sunk into it. The STL is
> to be cut with a CNC router.
>
> Since I am really not sure how to make numbers that are made with the
> bottoms in a V-shape, I am wondering if I can just extrude the numbers
> normally, sink then into position, and tell the guy to use a V-bit for
> that part.
>
> If that will work, how deep will the V-bit cut? I assume it will cut so
> the point will be coincident with the bottom of the digits, but I
> really don't know.
>
> If there is a way to extrude text to do the job, I'd welcome hearing
> how.
>
> Thanks.
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
L
larry
Wed, Sep 18, 2024 8:50 PM
On Wed, 2024-09-18 at 21:15 +0100, Raymond West via Discuss wrote:
It's just not a case of cutting the shape with a v bit at constant
depth, because you will get rounded corners.
Right. Never thought of that, but I think rounded corners, as well as
ends of lines, will be OK.
I think I'll just wait and see what the fellow tries, and go from
there.
That new roof() looks promising. I like it a lot, and it's been
something I've wanted for quite some time, specifically for text..
I do think it needs at least one more argument (height of roof) and the
ability to use a negative roof to avoid fiddling with mirror and rotate
to get something that can be sunk in. Hmm... another argument could be
useful; chamfered or rounded ends of text for 3D printing.
On 18/09/2024 18:16, larry via Discuss wrote:
I was asked to modify an STL by adding numbers sunk into it. The STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with the
bottoms in a V-shape, I am wondering if I can just extrude the numbers
normally, sink then into position, and tell the guy to use a V-bit for
that part.
If that will work, how deep will the V-bit cut? I assume it will cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome hearing
how.
Thanks.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
On Wed, 2024-09-18 at 21:15 +0100, Raymond West via Discuss wrote:
> It's just not a case of cutting the shape with a v bit at constant
> depth, because you will get rounded corners.
Right. Never thought of that, but I think rounded corners, as well as
ends of lines, will be OK.
I think I'll just wait and see what the fellow tries, and go from
there.
That new roof() looks promising. I like it a lot, and it's been
something I've wanted for quite some time, specifically for text..
I do think it needs at least one more argument (height of roof) and the
ability to use a negative roof to avoid fiddling with mirror and rotate
to get something that can be sunk in. Hmm... another argument could be
useful; chamfered or rounded ends of text for 3D printing.
> On 18/09/2024 18:16, larry via Discuss wrote:
> > I was asked to modify an STL by adding numbers sunk into it. The STL is
> > to be cut with a CNC router.
> >
> > Since I am really not sure how to make numbers that are made with the
> > bottoms in a V-shape, I am wondering if I can just extrude the numbers
> > normally, sink then into position, and tell the guy to use a V-bit for
> > that part.
> >
> > If that will work, how deep will the V-bit cut? I assume it will cut so
> > the point will be coincident with the bottom of the digits, but I
> > really don't know.
> >
> > If there is a way to extrude text to do the job, I'd welcome hearing
> > how.
> >
> > Thanks.
> > _______________________________________________
> > OpenSCAD mailing list
> > To unsubscribe send an email to discuss-leave@lists.openscad.org
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
>
L
larry
Wed, Sep 18, 2024 8:51 PM
On Wed, 2024-09-18 at 10:32 -0700, Dan Perry via Discuss wrote:
There's a new-ish experimental feature called roof() that does
exactly what you want from a 2D shape. I think you could have a
challenge that perhaps not all the bits that make up a polygon are
going to be exactly the same width, then they won't be the same depth
using the roof() cmd.
roof() must be enabled in preferences.
Dan
Thanks for the pointer! I did not realize it was there. See my respnse
to Raymond for comments on it.
I was asked to modify an STL by adding numbers sunk into it. The
STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with
the
bottoms in a V-shape, I am wondering if I can just extrude the
numbers
normally, sink then into position, and tell the guy to use a V-bit
for
that part.
If that will work, how deep will the V-bit cut? I assume it will
cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome
hearing
how.
Thanks.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
On Wed, 2024-09-18 at 10:32 -0700, Dan Perry via Discuss wrote:
> There's a new-ish experimental feature called roof() that does
> exactly what you want from a 2D shape. I think you could have a
> challenge that perhaps not all the bits that make up a polygon are
> going to be exactly the same width, then they won't be the same depth
> using the roof() cmd.
> roof() must be enabled in preferences.
> Dan
Thanks for the pointer! I did not realize it was there. See my respnse
to Raymond for comments on it.
> On Wed, Sep 18, 2024 at 10:17 AM larry via Discuss
> <discuss@lists.openscad.org> wrote:
> > I was asked to modify an STL by adding numbers sunk into it. The
> > STL is
> > to be cut with a CNC router.
> >
> > Since I am really not sure how to make numbers that are made with
> > the
> > bottoms in a V-shape, I am wondering if I can just extrude the
> > numbers
> > normally, sink then into position, and tell the guy to use a V-bit
> > for
> > that part.
> >
> > If that will work, how deep will the V-bit cut? I assume it will
> > cut so
> > the point will be coincident with the bottom of the digits, but I
> > really don't know.
> >
> > If there is a way to extrude text to do the job, I'd welcome
> > hearing
> > how.
> >
> > Thanks.
> > _______________________________________________
> > OpenSCAD mailing list
> > To unsubscribe send an email to discuss-leave@lists.openscad.org
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
L
larry
Wed, Jul 2, 2025 9:10 PM
On Wed, 2024-09-18 at 10:32 -0700, Dan Perry via Discuss wrote:
There's a new-ish experimental feature called roof() that does
exactly what you want from a 2D shape. I think you could have a
challenge that perhaps not all the bits that make up a polygon are
going to be exactly the same width, then they won't be the same depth
using the roof() cmd.
roof() must be enabled in preferences.
Dan
Has there been any more effort put into the roof() function?
I think it could be made a lot more useful if we had the ability to
specify either a numeric height or an angle to make the height uniform
regardless of the sizes of the parts of the objects.
Additionally, to allow negative numbers for the numbers to allow roof()
on the bottom of the object
Perhaps something like this...
roof(d=30) text("HELLO"); // degrees = angle of roof.
roof(h=1) text("WORLD"); // height = height of all parts of an
object's roof.
// Prefixing a '-' to the numbers would make the roof on the bottom of
the object.
I was asked to modify an STL by adding numbers sunk into it. The
STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with
the
bottoms in a V-shape, I am wondering if I can just extrude the
numbers
normally, sink then into position, and tell the guy to use a V-bit
for
that part.
If that will work, how deep will the V-bit cut? I assume it will
cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome
hearing
how.
Thanks.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
On Wed, 2024-09-18 at 10:32 -0700, Dan Perry via Discuss wrote:
> There's a new-ish experimental feature called roof() that does
> exactly what you want from a 2D shape. I think you could have a
> challenge that perhaps not all the bits that make up a polygon are
> going to be exactly the same width, then they won't be the same depth
> using the roof() cmd.
> roof() must be enabled in preferences.
> Dan
Has there been any more effort put into the roof() function?
I think it could be made a lot more useful if we had the ability to
specify either a numeric height or an angle to make the height uniform
regardless of the sizes of the parts of the objects.
Additionally, to allow negative numbers for the numbers to allow roof()
on the bottom of the object
Perhaps something like this...
roof(d=30) text("HELLO"); // degrees = angle of roof.
roof(h=1) text("WORLD"); // height = height of all parts of an
object's roof.
// Prefixing a '-' to the numbers would make the roof on the bottom of
the object.
> On Wed, Sep 18, 2024 at 10:17 AM larry via Discuss
> <discuss@lists.openscad.org> wrote:
> > I was asked to modify an STL by adding numbers sunk into it. The
> > STL is
> > to be cut with a CNC router.
> >
> > Since I am really not sure how to make numbers that are made with
> > the
> > bottoms in a V-shape, I am wondering if I can just extrude the
> > numbers
> > normally, sink then into position, and tell the guy to use a V-bit
> > for
> > that part.
> >
> > If that will work, how deep will the V-bit cut? I assume it will
> > cut so
> > the point will be coincident with the bottom of the digits, but I
> > really don't know.
> >
> > If there is a way to extrude text to do the job, I'd welcome
> > hearing
> > how.
> >
> > Thanks.
> > _______________________________________________
> > OpenSCAD mailing list
> > To unsubscribe send an email to discuss-leave@lists.openscad.org
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
RD
Revar Desmera
Wed, Jul 2, 2025 9:37 PM
- A downward roof can be done with just a
scale ([1,1,-1]).
- You can set roof angle using
scale([1,1,tan(ang)]) if the default roof angle is 45° like I think it is.
- You can use
resize([0,0,h]) to set max roof height.
-Revar
On Jul 2, 2025, at 2:10 PM, larry via Discuss discuss@lists.openscad.org wrote:
On Wed, 2024-09-18 at 10:32 -0700, Dan Perry via Discuss wrote:
There's a new-ish experimental feature called roof() that does
exactly what you want from a 2D shape. I think you could have a
challenge that perhaps not all the bits that make up a polygon are
going to be exactly the same width, then they won't be the same depth
using the roof() cmd.
roof() must be enabled in preferences.
Dan
Has there been any more effort put into the roof() function?
I think it could be made a lot more useful if we had the ability to
specify either a numeric height or an angle to make the height uniform
regardless of the sizes of the parts of the objects.
Additionally, to allow negative numbers for the numbers to allow roof()
on the bottom of the object
Perhaps something like this...
roof(d=30) text("HELLO"); // degrees = angle of roof.
roof(h=1) text("WORLD"); // height = height of all parts of an
object's roof.
// Prefixing a '-' to the numbers would make the roof on the bottom of
the object.
On Wed, Sep 18, 2024 at 10:17 AM larry via Discuss
discuss@lists.openscad.org wrote:
I was asked to modify an STL by adding numbers sunk into it. The
STL is
to be cut with a CNC router.
Since I am really not sure how to make numbers that are made with
the
bottoms in a V-shape, I am wondering if I can just extrude the
numbers
normally, sink then into position, and tell the guy to use a V-bit
for
that part.
If that will work, how deep will the V-bit cut? I assume it will
cut so
the point will be coincident with the bottom of the digits, but I
really don't know.
If there is a way to extrude text to do the job, I'd welcome
hearing
how.
Thanks.
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
1. A downward roof can be done with just a `scale ([1,1,-1])`.
2. You can set roof angle using `scale([1,1,tan(ang)])` if the default roof angle is 45° like I think it is.
3. You can use `resize([0,0,h])` to set max roof height.
-Revar
> On Jul 2, 2025, at 2:10 PM, larry via Discuss <discuss@lists.openscad.org> wrote:
>
> On Wed, 2024-09-18 at 10:32 -0700, Dan Perry via Discuss wrote:
>> There's a new-ish experimental feature called roof() that does
>> exactly what you want from a 2D shape. I think you could have a
>> challenge that perhaps not all the bits that make up a polygon are
>> going to be exactly the same width, then they won't be the same depth
>> using the roof() cmd.
>> roof() must be enabled in preferences.
>> Dan
>
> Has there been any more effort put into the roof() function?
> I think it could be made a lot more useful if we had the ability to
> specify either a numeric height or an angle to make the height uniform
> regardless of the sizes of the parts of the objects.
>
> Additionally, to allow negative numbers for the numbers to allow roof()
> on the bottom of the object
>
> Perhaps something like this...
>
> roof(d=30) text("HELLO"); // degrees = angle of roof.
> roof(h=1) text("WORLD"); // height = height of all parts of an
> object's roof.
> // Prefixing a '-' to the numbers would make the roof on the bottom of
> the object.
>
>
>>> On Wed, Sep 18, 2024 at 10:17 AM larry via Discuss
>>> <discuss@lists.openscad.org> wrote:
>>> I was asked to modify an STL by adding numbers sunk into it. The
>>> STL is
>>> to be cut with a CNC router.
>>>
>>> Since I am really not sure how to make numbers that are made with
>>> the
>>> bottoms in a V-shape, I am wondering if I can just extrude the
>>> numbers
>>> normally, sink then into position, and tell the guy to use a V-bit
>>> for
>>> that part.
>>>
>>> If that will work, how deep will the V-bit cut? I assume it will
>>> cut so
>>> the point will be coincident with the bottom of the digits, but I
>>> really don't know.
>>>
>>> If there is a way to extrude text to do the job, I'd welcome
>>> hearing
>>> how.
>>>
>>> Thanks.
>>> _______________________________________________
>>> OpenSCAD mailing list
>>> To unsubscribe send an email to discuss-leave@lists.openscad.org
>> _______________________________________________
>> OpenSCAD mailing list
>> To unsubscribe send an email to discuss-leave@lists.openscad.org
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
L
larry
Thu, Jul 3, 2025 4:18 PM
On Wed, 2025-07-02 at 14:37 -0700, Revar Desmera wrote:
- A downward roof can be done with just a
scale ([1,1,-1]).
- You can set roof angle using
scale([1,1,tan(ang)]) if the default roof angle is 45° like I think it is.
- You can use
resize([0,0,h]) to set max roof height.
-Revar
Thanks Revar! That's exactly what I needed!
My test even used your "" escape to put quotes in.
include <BOSL2/std.scad>
$fn= $preview ? 60 : 180;
difference() {
scale([1,1,-4]) roof() text(""Revar"",font="vag rounded");
back(5) right(25) down(4) cuboid([50,12,5]);
}
On Wed, 2025-07-02 at 14:37 -0700, Revar Desmera wrote:
> 1. A downward roof can be done with just a `scale ([1,1,-1])`.
> 2. You can set roof angle using `scale([1,1,tan(ang)])` if the default roof angle is 45° like I think it is.
> 3. You can use `resize([0,0,h])` to set max roof height.
> -Revar
Thanks Revar! That's exactly what I needed!
My test even used your "\" escape to put quotes in.
include <BOSL2/std.scad>
$fn= $preview ? 60 : 180;
difference() {
scale([1,1,-4]) roof() text("\"Revar\"",font="vag rounded");
# back(5) right(25) down(4) cuboid([50,12,5]);
}
