Hooks and grooves?

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Hooks and grooves?

OpenSCAD mailing list
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



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Re: Hooks and grooves?

tobject
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 <[hidden email]> 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
> [hidden email]
> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>

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Hooks and grooves?

CasaDelGato
In reply to this post by OpenSCAD mailing list
On Fri Oct 04 06:11:48 PDT 2019 [hidden email] 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.


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Tigers prowl and Dragons soar in my dreams...
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Re: Hooks and grooves?

OpenSCAD mailing list
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


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Re: Hooks and grooves?

acwest
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 😊


On Sat, 5 Oct 2019, 14:23 Matthias Urlichs via Discuss, <[hidden email]> 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


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Re: Hooks and grooves?

Ronaldo
In reply to this post by OpenSCAD mailing list
Some slanted finger joints, perhaps.

A sábado, 5/10/2019, 19:23, Matthias Urlichs via Discuss <[hidden email]> 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


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Re: Hooks and grooves?

adrianv
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>



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Re: Hooks and grooves?

OpenSCAD mailing list
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


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Re: Hooks and grooves?

MichaelAtOz
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'Clip'



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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!