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Hooks and grooves?

MU
Matthias Urlichs
Fri, Oct 4, 2019 1:11 PM

Hello, algorithmically inclined CAD people,

I find myself in need of a hook-and-groove system (to put a bottom or a
lid on a box). The problem is that the edge may (a) have less than 90°
(think "base of a pyramid") and (b) may need to be inset by some amount
(think "heavily mitered edges").

Is there code out there which does that? While I'm no stranger to 3-D
geometry math, re-inventing the wheel isn't my favorite pastime.

--
-- Matthias Urlichs

Hello, algorithmically inclined CAD people, I find myself in need of a hook-and-groove system (to put a bottom or a lid on a box). The problem is that the edge may (a) have less than 90° (think "base of a pyramid") and (b) may need to be inset by some amount (think "heavily mitered edges"). Is there code out there which does that? While I'm no stranger to 3-D geometry math, re-inventing the wheel isn't my favorite pastime. -- -- Matthias Urlichs
S
Serge
Fri, Oct 4, 2019 3:01 PM

Try https://www.thingiverse.com/ it's  like Google search for 3D
models and has some OpenScad

On 10/4/19, Matthias Urlichs via Discuss discuss@lists.openscad.org wrote:

Hello, algorithmically inclined CAD people,

I find myself in need of a hook-and-groove system (to put a bottom or a
lid on a box). The problem is that the edge may (a) have less than 90°
(think "base of a pyramid") and (b) may need to be inset by some amount
(think "heavily mitered edges").

Is there code out there which does that? While I'm no stranger to 3-D
geometry math, re-inventing the wheel isn't my favorite pastime.

--
-- Matthias Urlichs

OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

Try https://www.thingiverse.com/ it's like Google search for 3D models and has some OpenScad On 10/4/19, Matthias Urlichs via Discuss <discuss@lists.openscad.org> wrote: > Hello, algorithmically inclined CAD people, > > I find myself in need of a hook-and-groove system (to put a bottom or a > lid on a box). The problem is that the edge may (a) have less than 90° > (think "base of a pyramid") and (b) may need to be inset by some amount > (think "heavily mitered edges"). > > Is there code out there which does that? While I'm no stranger to 3-D > geometry math, re-inventing the wheel isn't my favorite pastime. > > -- > -- Matthias Urlichs > > > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >
JL
John Lussmyer
Fri, Oct 4, 2019 3:13 PM

On Fri Oct 04 06:11:48 PDT 2019 discuss@lists.openscad.org said:

I find myself in need of a hook-and-groove system (to put a bottom or a
lid on a box). The problem is that the edge may (a) have less than 90°
(think "base of a pyramid") and (b) may need to be inset by some amount

I've been using simple dovetail joints.

--

Tigers prowl and Dragons soar in my dreams...

On Fri Oct 04 06:11:48 PDT 2019 discuss@lists.openscad.org said: >I find myself in need of a hook-and-groove system (to put a bottom or a >lid on a box). The problem is that the edge may (a) have less than 90° >(think "base of a pyramid") and (b) may need to be inset by some amount I've been using simple dovetail joints. -- Tigers prowl and Dragons soar in my dreams...
MU
Matthias Urlichs
Sat, Oct 5, 2019 6:20 PM

On 04.10.19 17:13, John Lussmyer wrote:

I've been using simple dovetail joints.

Umm, well, for a somewhat-removeable lid (which doesn't slide off on its
own when mounted upside down – I need them for an enclose of a
ceiling/corner-mounted room monitor) these are probably not the right
choice. I'm looking for something that locks with a snap-in and doesn't
require tight tolerances.

Of course I know about Thingiverse, but I didn't find anything remotely
suitable.

--
-- Matthias Urlichs

On 04.10.19 17:13, John Lussmyer wrote: > I've been using simple dovetail joints. Umm, well, for a somewhat-removeable lid (which doesn't slide off on its own when mounted upside down – I need them for an enclose of a ceiling/corner-mounted room monitor) these are probably not the right choice. I'm looking for something that locks with a snap-in and doesn't require tight tolerances. Of course I know about Thingiverse, but I didn't find anything remotely suitable. -- -- Matthias Urlichs
AC
A. Craig West
Sat, Oct 5, 2019 6:27 PM

You could give this a try. It's based on the pins from the gear-cube, but
I've reworked the design very heavily. It is written I. Openscad of course
😊
https://www.thingiverse.com/thing:3218332

On Sat, 5 Oct 2019, 14:23 Matthias Urlichs via Discuss, <
discuss@lists.openscad.org> wrote:

On 04.10.19 17:13, John Lussmyer wrote:

I've been using simple dovetail joints.

Umm, well, for a somewhat-removeable lid (which doesn't slide off on its
own when mounted upside down – I need them for an enclose of a
ceiling/corner-mounted room monitor) these are probably not the right
choice. I'm looking for something that locks with a snap-in and doesn't
require tight tolerances.

Of course I know about Thingiverse, but I didn't find anything remotely
suitable.

--
-- Matthias Urlichs

OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

You could give this a try. It's based on the pins from the gear-cube, but I've reworked the design very heavily. It is written I. Openscad of course 😊 https://www.thingiverse.com/thing:3218332 On Sat, 5 Oct 2019, 14:23 Matthias Urlichs via Discuss, < discuss@lists.openscad.org> wrote: > On 04.10.19 17:13, John Lussmyer wrote: > > I've been using simple dovetail joints. > > Umm, well, for a somewhat-removeable lid (which doesn't slide off on its > own when mounted upside down – I need them for an enclose of a > ceiling/corner-mounted room monitor) these are probably not the right > choice. I'm looking for something that locks with a snap-in and doesn't > require tight tolerances. > > Of course I know about Thingiverse, but I didn't find anything remotely > suitable. > > -- > -- Matthias Urlichs > > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >
RP
Ronaldo Persiano
Sat, Oct 5, 2019 8:42 PM

Some slanted finger joints, perhaps.

A sábado, 5/10/2019, 19:23, Matthias Urlichs via Discuss <
discuss@lists.openscad.org> escreveu:

On 04.10.19 17:13, John Lussmyer wrote:

I've been using simple dovetail joints.

Umm, well, for a somewhat-removeable lid (which doesn't slide off on its
own when mounted upside down – I need them for an enclose of a
ceiling/corner-mounted room monitor) these are probably not the right
choice. I'm looking for something that locks with a snap-in and doesn't
require tight tolerances.

Of course I know about Thingiverse, but I didn't find anything remotely
suitable.

--
-- Matthias Urlichs

OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

Some slanted finger joints, perhaps. A sábado, 5/10/2019, 19:23, Matthias Urlichs via Discuss < discuss@lists.openscad.org> escreveu: > On 04.10.19 17:13, John Lussmyer wrote: > > I've been using simple dovetail joints. > > Umm, well, for a somewhat-removeable lid (which doesn't slide off on its > own when mounted upside down – I need them for an enclose of a > ceiling/corner-mounted room monitor) these are probably not the right > choice. I'm looking for something that locks with a snap-in and doesn't > require tight tolerances. > > Of course I know about Thingiverse, but I didn't find anything remotely > suitable. > > -- > -- Matthias Urlichs > > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >
A
adrianv
Wed, Oct 9, 2019 6:53 PM

I'm not sure I understand the original poster's intention.  I have recently
designed the following.  Is this the idea?  It is a box with a lid that
slides into place held in a triangular groove.  (Unfortunately my
application had the object on the dashboard of my car which turns out to be
too hot for PLA.)

http://forum.openscad.org/file/t2477/boxpic.png

--
Sent from: http://forum.openscad.org/

I'm not sure I understand the original poster's intention. I have recently designed the following. Is this the idea? It is a box with a lid that slides into place held in a triangular groove. (Unfortunately my application had the object on the dashboard of my car which turns out to be too hot for PLA.) <http://forum.openscad.org/file/t2477/boxpic.png> -- Sent from: http://forum.openscad.org/
MU
Matthias Urlichs
Wed, Oct 9, 2019 7:05 PM

Hi,

I'm not sure I understand the original poster's intention.

Call it "hooks and ridges" then, or "hooks and whatever a hook hooks
onto"; English is not my first language.

Anyway, I have coded (but not yet printed) up a preliminary version of
my idea, and parked it at Thingiverse. Heaps of interesting geometry
lessons here …

https://www.thingiverse.com/thing:3904636

--
-- Matthias Urlichs

Hi, > I'm not sure I understand the original poster's intention. Call it "hooks and ridges" then, or "hooks and whatever a hook hooks onto"; English is not my first language. Anyway, I have coded (but not yet printed) up a preliminary version of my idea, and parked it at Thingiverse. Heaps of interesting geometry lessons here … https://www.thingiverse.com/thing:3904636 -- -- Matthias Urlichs
M
MichaelAtOz
Wed, Oct 9, 2019 10:26 PM

'Clip'

Admin - email* me if you need anything, or if I've done something stupid...

  • click on my MichaelAtOz label, there is a link to email me.

Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above.

The TPP is no simple “trade agreement.”  Fight it! http://www.ourfairdeal.org/  time is running out!

Sent from: http://forum.openscad.org/

'Clip' ----- Admin - email* me if you need anything, or if I've done something stupid... * click on my MichaelAtOz label, there is a link to email me. Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above. The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out! -- Sent from: http://forum.openscad.org/
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