3D Libre . com - Available 3D-printers for you !

Manuel RepRap

Luis David Campos Venancio — Thu, 26 Dec 2024 20:00:00 +0000

Manuel RepRap

Object by Luis David ?

Yes

Luis David Cam… 2024/12/26 - 20:00

Images

Source_URL

Manuel RepRap on GITHUB

I offer this concept I invented in 2014 as a OSHW supporter, user and fan. Prototype actually in version 0.2.

It is a 3D-Printer moved by hand ! Without any stepper motor (for now). Composed of a pantograph and a hot bed (aka heated bed) moved by the operator for each layer using a wheel under the desktop. (So the layer height is totally free.)

Of course, when starting a new layer, the operator has to change the blue-print on the right, or repeat the previous one several times.

The final object finition and precision depends on the operator work.

The extruder (of your choice) should be placed on the "X-carriage" (not finished in the .blend) and a button added to the "pointer" for extruding.

Sorry for the mess in the .blend, but it's there !

You can help me or make your own version with a chocolate extruder or argile... It's up to you.

I'm rebuilding it from scratch right now, but it's not my priority project, so I'm slow on this one and YOU could go ahead and fork it !

Comments

I will be finishing this in the coming months.

This is a "funny" idea I had in Toulouse, France around 10 years ago or a bit more.

I almost finished the first prototype but my personnal life sent me a NOPE in the face.

LOL !

I'm not even talking about the PANTOGRAPH part !

If you know how it works, that's cool you already know this :

A pantograph can be modified to change the scale of the reproduction.

So with a different setup, it can reduce the model or augment it.

This depends on : Where you put the central 2 arms driving the X-carriage.

Any questions ? (create an account and go ahead, or send me an e-mail)

Open-Source Wind-Turbine "Voile Rotative"

Luis David Campos Venancio — Fri, 20 Sep 2024 20:36:00 +0000

Open-Source Wind-Turbine "Voile Rotative"

Object by Luis David ?

Yes

Luis David Cam… 2024/09/20 - 21:36

Images

Source_URL

David's GITHUB Account

Files

voile_rotative_alpha_002.blend (1.35 MB)

voile_rotative_alpha_002.stl (616.1 KB)

voile_rotative_eolienne-bearing_support_3_arms.001.stl (387 KB)

voile_rotative_eolienne-vert_fixation.stl (120 KB)

wind-turbine_voile_rotative_a0-03_0.blend (7.62 MB)

Work in progress as of april 2025.

This is a prototype of a vertical wind-turbine for a 5 Volts output.

I am looking for testers and feedback.

You can fork it and build your own project with it !

On this video: the black one was deformed by the sun during 2024 summer here in Portugal south west, at ~30°C. I since, replaced it by the "Perl-White" color 0.02 version which you can now see on the newest pictures.

You can 3D-print it bigger or smaller... stack more than 2 "voiles rotatives" if you like...

Contact me if you want to sponsor this project (so I could work on it a lot faster, fulltime).

Comments

Will spend some time now on the Voile Rotative project.

Sorry to be so slow since December !

I'v been working on a "Medium" size HeavyMeta Pan-Tilt (~20cm diameter), coding the firmware and Linux "remote control" enabling to pilot it with a joystick (using the GrippyBot existing firmware and remote control).

You can already "play" with the Voile Rotative v0.02 and scale it smaller or bigger !

TTYL ASAP.

Finishing the electricity production module for the 0.02 version

3D-printing this :

Electric Generator support : RING version 0.01

here it is

Just posted the alpha 0.03

Here and here.

HeavyMeta Pan-Tilt

Luis David Campos Venancio — Tue, 09 Jul 2024 22:22:15 +0000

HeavyMeta Pan-Tilt

Object by Luis David ?

Yes

Luis David Cam… 2024/07/09 - 23:22

Images

Source_URL

https://github.com/david-venancio/heavymeta_pantilt

HeavyMeta quick preview (bug with the shadows on this rendering but this is a PEBCAK problem and missing time to do better)

Comments

Found a nice .blend backup !

Publishing in a few days how to make yourself this machine. To-do : - endstops contacts on both axis, - illimited rotation (with brush-style contacts) As you can see on the picture I tried with a KINECT used as a 3D-scanner. Can obviously be used in MANY cases and problems (like DRONES DEFENSE with a camera plugged into a RaspberryPi +code ) ... Over and out for now.

Version 0.09 published.

Clean .blend file.

12 .STL files.

Will post how to build it this week.

my bad,

The central disc is 80cm wide.

This version 0.09 corrects the PAN gears division : 209 / 11 = 19.

You have to 3D-print 19 times the 11 teeth section.

The charge problematic depends on what you are using. The upper bar is for a counter weight, so the Tilt gears can move the charge easier. So, if the charge's center of gravity doesn't match -like for the video projector example- place a counter-weight above it using the Tilt "T arm" and slider part for the counter-weight like on the picture with the Kinect.

If everyone makes this = Status Quo with Drones.

If everyone can defend himself against drones :

Aggressive Drones turn to be useless,

Which would be cool.

(of course there's still a lot of work to point a powerfull laser with precision on a incoming drone, I'm not saying it's easy)

Science-fiction inspired...

PAN-TILT machines... = huge subject.

A read once in a sci-fi book (can't remember which one), about a guy arriving on a planet with low gravity, defended by ultra-fast "laser pointing machines" with movements timed in milliseconds... the guy had to make 9Km jumps with an exoskeleton equiped suite. While he was "jumping" he could be fried by those machines...

Just posting this as a note... the future will need those ones... for example AGAINST METEORS... or SWARMS of WHATEVER (thinking about insects swarms)...

(isn't there a Mosquito killer already ? hmmmf no time to search now this one, but I saw this passing by "a infinite elevator" website... (instagram)).

Anyway, please have a nice imagination about that, because I'm thinking only about DEFENSE.

Gears could be multiplied

Obviously :

1/ you can SCALE -up or down- this.

2/ make your own gears in function of the charge.

3/ you have to program the Arduino : already started and posted on github something similar with the GrippyBot Remote Control and firmware ( which can play a Star Wars music... I let you discover which one... ;P ).

The Arduino+Shield are different from the Arduino Mega 2560 I used on the GrippyBot. But the idea is the same : serial connexion between the Arduino and a computer running Linux (any old laptop would be perfect or a RaspeberryPi).

On the computer : you can plug a joypad (like me with the grippybot showed at Capitol du Libre ~~2017~~ 2016) or program a more sofisticated system with a camera and image analyze capabilities.

Vase 1!

Luis David Campos Venancio — Wed, 14 Feb 2024 23:58:55 +0000

Vase 1!

Object by Luis David ?

Yes

Luis David Cam… 2024/02/14 - 23:58

Images

Source_URL

3D Libre . com / vase1

Files

Vase_1!-BezierCurve_converted_to_Mesh.stl (37.52 MB)

Vase_1!.blend (50.39 MB)

"Bezier curves" based.

Play with the source file in Blender !

Comments

Resized

With PrusaSlicer we resize objects on demand.

ANTI-LOOSE Phone 0.02

Luis David Campos Venancio — Mon, 13 Nov 2023 03:20:26 +0000

ANTI-LOOSE Phone 0.02

Object by Luis David ?

Yes

Luis David Cam… 2023/11/13 - 03:20

Images

Source_URL

https://github.com/david-venancio/ANTI-LOOSE_Phone/

Bill Of Material:
. 1x 4 mm diameter nut
. 1x 4 mm diameter and 50 mm long cap scew.
. 2 3d-printed parts (3rd part is not perfect but you can try it).

1/ 3D-print the 2 first parts and 3 if you like
2/ insert the nut in ANTI-LOOSE_Phone_0-02-_2.stl
3/ insert the cap screw into ANTI-LOOSE_Phone_0-02-_1.stl side hole
4/ insert part 2 into part 1
5/ attach a line or a metalic ring with a chain,
6/ rotate the screw until your phone is secured.
7/ attach the other end of the line to yourself by any method.

BLENDER FILE PROVIDED.

LOVE Double Ring

Luis David Campos Venancio — Thu, 09 Jun 2022 13:18:07 +0000

LOVE Double Ring

Object by Luis David ?

Yes

Luis David Cam… 2022/06/09 - 14:18

Images

For once, this is not open-source, and I do not provide the .stl. I'm not selling either. This is just for record.

Made at Toulouse France in ~2015.

Registered on OpenSea.io .

robotic arm support + carter-box for electronics

Luis David Campos Venancio — Thu, 10 Mar 2022 02:29:00 +0000

robotic arm support + carter-box for electronics

Object by Luis David ?

Yes

Luis David Cam… 2022/03/10 - 02:29

Images

Source_URL

https://github.com/david-venancio/robotic_arm_support-carter-box_for_electronics

Files

robotic_arm_support+carter+box_for_electronics_part-1.stl (433.38 KB)

robotic_arm_support+carter+box_for_electronics_part-2.stl (428.4 KB)

robotic_arm_support+carter+box_for_electronics_part-3.stl (163.75 KB)

robotic_arm_support+carter+box_for_electronics_part-4.stl (170.79 KB)

Made for the Grippy_Bot by Roboteurs.

Needs supports while printing.

Piloted with a Gamepad during the Capitole du Libre 2016.

Hardware :

1x Arduino UNO or Mega 2560 (powered by the power supply) running the Grippy Bot firmware.
5x Servo motors (receiving directly 5 Volts from the power supply)
1x 5 volts Laser
1x SHARP Distance sensor
1x USB Cable (white on the picture bellow)
1x ATX power supply (fitting inside the carter) hacked with a power switch on the Green and Black cables (and of course a 220V cable).
1x Gamepad (2 analog small joysticks used and some buttons)
1x PC with a Linux distribution of your choice (mine is Debian) for the Remote Control program.

No way to find any images from the Capitole du Libre. Sorry about that, but it works.

RD-Linkage

Luis David Campos Venancio — Mon, 21 Feb 2022 06:34:46 +0000

RD-Linkage

Object by Luis David ?

Yes

Luis David Cam… 2022/02/21 - 06:34

Images

Source_URL

https://github.com/david-venancio/rhombic_dodecahedron_linkage

Files

rhombic_dodecahedron_linkage.stl (61.31 KB)

Description here : https://www.3dlibre.com/hexagon_fashion

I just posted on Github the variation with bigger pins and holes.

Alinettes v0.01

Luis David Campos Venancio — Mon, 21 Feb 2022 06:29:49 +0000

Alinettes v0.01

Object by Luis David ?

Yes

Luis David Cam… 2022/02/21 - 06:29

Images

Source_URL

https://github.com/david-venancio/alinettes

Files

alinettes-monture.stl (3.08 MB)

alinettes-branche_droite.stl (781.14 KB)

alinettes-branche_gauche.stl (781.14 KB)

alinettes.blend (7.09 MB)

Under construction

You can FORK this project on GitHub.

The BLENDER file is provided so you can directly modify this right now.

Comments

License type :

DWTFYWWI

Do What The Fuck You Want With It.

3D Stencil demonstration

Luis David Campos Venancio — Mon, 21 Feb 2022 06:06:06 +0000

3D Stencil demonstration

Object by Luis David ?

Yes

Luis David Cam… 2022/02/21 - 06:06

Images

Source_URL

https://github.com/david-venancio/3d_stencil_demo

Files

3d_stencil_demo_ufton_crop_circle.stl (1.14 MB)

I FOUND THIS IDEA ALONE, THIS IS A NEW WAY OF MAKING STENCILS.

In 2014 I had to make the chinese character "HAO" stencil for an artist in Toulouse. When modeling the object I thought about making the bridges in 3 dimensions instead of the normal flat way, to avoid marks of those bars... And it works perfectly !

"3D Bridges" are easy to make yourself if you know a CAD software, but if you need a complex stencil, and don't know how to do it, please ask me ! (you need a 3D-printer to do this)

RD-Block

Luis David Campos Venancio — Mon, 21 Feb 2022 05:53:05 +0000

RD-Block

Object by Luis David ?

Yes

Luis David Cam… 2022/02/21 - 05:53

Images

Source_URL

https://github.com/david-venancio/rd-block

Files

dodecaedre_rhombique_TRUSS_HALF_001.stl (86.8 KB)

= 3D-printed building block that doesn't need supports and is lightweight !

You can stack the blocks by matching lozenge faces or the flat unique face created by the cut.

Perfectly stackable because it's based on Rhombic Dodecahedron (a Catalan Solid).

I cutted it in half to enable anyone to use it as the first step of the "building".

You can turn each block on all axis and imagine what you can do with a lot of them !

Demo here (made with blender) : https://youtu.be/Pvk413GOPRk

The scale of the mesh can be modified when you 3d-print, of course, but novices in 3d-print don't know that's so easy, so I have to insist on that argument : anyone can print it at the needed size.

I suggest to check what size you get at 100% (small on purpose when loaded on slic3r) or 5000%, then 3D-print it and "play" with it. This is very important: at small scales the bars -or poles- get too thin and weak and could be enlarged. At the opposite, with big scales the bars could be thiner depending on the extruded material... You should try some mechanical stress-tests (in all cases btw). Use at your own risk ! I'm not responsible of the real objects uses and maybe fails. I'm not saying and cannot guarantee that the produced objects are unbreakable !

License : Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/