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#freecad

11 posts10 participants0 posts today
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JW Prince of CPH, Radicalized

This may have something to do with a "redundant constraint", but I can't find out because #FREECAD ONLY TELLS ME THERE IS ONE & REFUSES TO LET ME FIND IT!!... 🙄 there's a nice little number identifier, which seems great until you realize that the interface contains no way of finding or filtering restraints by their ID number - or if there is, I can't fucking find it...

Screenshot of "redundant constraint" message
Replied in thread
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Jon A. Cruz

@NefariousAryq depends on what you want to do. For more natural and organic sculpting and modeling go for Blender. For designing and functional things look at #FreeCAD. For coding 3d shapes check out OpenSCAD.

Given that those are all Open Source and cross platform you can afford all the tools.

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concretedog

Getting a bit further with my exploration of Computational Fluid Dynamics (CFD) this evening. Using the mighty @FreeCAD I've modelled this "Ballute" style parachute and simulated it descending at 6m/s in air. The air velocity is plotted in the images. Ace to see the turbulence in the point cloud/steam chaser view. If any #CFD experts fancy a chat.... I HAVE QUESTIONS! #OpenFOAM #FreeCAD

A screenshot of a simulation. A balloon shaped parachute model is descending in a grey box with red and blue areas showing the air velocity.
A point cloud view with lots of "steam chaser" lines showing the speed and direction of air flow over the ballute style parachute.
Replied to FreeCAD
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rahix

@FreeCAD This #FreeCADFriday I am working on a much improved version of my 3d-printable DIN rail cable comb for wire management.

The model is very parametric so it is easy to generate different variants of the model.

I am very glad about the new function for suppressing PartDesign features - otherwise working on this would be unbearable!

Screenshot of a FreeCAD project showing two DIN rails with a few example components attached. Behind the rails, the cable comb plates are mounted, with their hooks above and below the rail for wire management.
#FreeCAD
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Remy Rose
A patron asked our makerspace to design and CNC mill a replica of the Gemeente-Energiebedrijf sign found all over Amsterdam. They brought us a screenshot of a stock photo and some 6mm thick aluminum to cut it out from. Here's a first rough draft, CAD/CAM in #FreeCAD and milled in a #Snapmaker Artisan. I'm a novice at this stuff, you can probably tell from the results lol, but the next one will (hopefully) be better!

#CAD #cncmilling #library #makerspace
A photo of a shiny metal sign on a faux wood table, taken from directly above. It's vaguely pizza slice shaped, except the part that would be the crust is wider than the rest of the slice. It has a raised outer border, with screw holes at each rounded corner. There are raised letters spelling out "G E B" in the pizza crust area, and below that, the rest of it is taken up by a raised stylized lightning bolt. The very bottom tip seems to be jaggedly broken off.
A rendered image of a grey 3d sign, at an oblique angle. It's vaguely pizza slice shaped, except the part that would be the crust is wider than the rest of the slice. It has a raised outer border, with screw holes at each rounded corner. There are raised letters spelling out "G E B" in the pizza crust area, and below that, the rest of it is taken up by a raised stylized lightning bolt.
A photo of a painted metal sign with no background, taken from directly above. It's vaguely pizza slice shaped, except the part that would be the crust is wider than the rest of the slice. It has a grey raised outer border, with rivets at each rounded corner. There are raised orange letters spelling out "G E B" in the pizza crust area, and below that, the rest of it is taken up by a raised stylized orange lightning bolt. The inset area between all the other features is black. All of the paint is very cracked and worn.
#makerspace
Replied to FreeCAD
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HuK

I just passed SpreadSheets, when I started learning #FreeCAD and went with VarSets.

Risky move?

The there was a bug (or could it be configuration issue) with font foreground color being white like the background, sw-development-is.social/@HuK/

Now, to think of it, SpreadSheets would offer comment column and other stuff helping refactoring like variable naming not available with VarSet.

Just started to generate ~156 parameters with Python to VarSet... Or maybe I should go w/ Spreadsheets?

@FreeCAD

Software development is a social activityHuK (@HuK@sw-development-is.social)Attached: 1 image #FreeCAD #bug with Spreadsheets: Select all and change foreground/font color. Hangs. Recovery also hangs. Originating problem is, that the text is SHOWN as white i.e. text is not visible except when the cell is active. When changing color from Custom to Custom, the custom (black) SEEMS already selected and re-selecting it actually makes the text black. In the image A1 and B1 content are 123. Only B1 is shown because it is active.
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Finn

It's still not finished but today I made some progress!

I am designing a case for the Xiao ESP32S3 Wio-SX1262 Meshtastic node!

The display does not fit perfectly yet, I need to do the cutout in the lid for the display and make a button.

But I am already pretty happy with the results, thank you @FreeCAD - it's really enjoyable to work with FreeCAD!

When it's finished I want to install it in the attic as my stationary Meshtastic node.

A half transparent CAD model of a small case for a micro controller and a small OLED display. It has a hole for a USB-C port and oo the other side it has a hole for an antenna.
An ESP32S3 micro controller with a Wio-SX1262 LoRa hat on top. It is attached to a small breadboard which also hold some cables and a about 1 inch OLED display.
The previously shown 3D model of the case now is printed and the micro controller and the display are installed in the case. The two antennas, one for LoRa and one for WiFi, are just dangling around at the moment.
#Meshtastic#3DPrinting#FreeCAD
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int21h

A ver se alguén con experiencia en FreeCAD me pode botar unha man:

Teño unha matriz polar de buratos, configurable a través dunha folla de cálculo para escoller as dimensións e o número de buratos.
Quero colocar un parafuso en cada burato, e para iso necesito facer outra matriz polar de parafusos, pero non atopo o xeito de facelo. Os parafusos creados co Fasteners Workbench parece que non son válidos para crear matrices con eles.

Ocórreselle a alguén o xeito de facelo?

Imaxe dun deseño feito en Freecad onde unha das pezas é cilíndrica e ten tres buratos equidistantes.
A mesma imaxe do deseño feito en Freecad da imaxe anterior, onde esa mesma peza agora ten catro buratos no canto de tres.
#FreeCAD#PolarArray
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Stefano

Part 3 of building the DIY seismograph. So continuing on the moving arm concept, I settled on using a servo motor as this could easily be driven by the Arduino. I had to make the arm very light so as not to put too much pressure on the small servo motor I was going to use. Here is the model of the arm. Although I went back and forth with different ends to hold the pen, ultimately I ended up going with this clip. Modeled in #freecad #maker #diy #earthquake #arduino #servomotor #seismograph

Image shows a computer aided drawing model of an extended thin arm with holes to make it lighter. At the end of the arm is a hoop for holding a pen. The hoop has a small opening on one side to allow the hoop to expand a bit to hold the pen tightly.
Image shows the actual arm as depicted in the computer aided drawing holding a Sharpie pen, the pen that was chosen as it gave good results. Arm holding pen shown with tip of pen sitting on a sheet of paper. I moved the arm manually back and forth to simulate the servo motor and was pleasantly surprised with the results.
Image showing a piece of paper on which are sketched some black jagged lines, which somewhat resemble the traces from a Seismograph.
An image showing the sam 3D printed arm now connected to the Servo Motor, a small rectangular shaped box under the arm about half way down the arm. This was the Mark 1 prototype with the servo motor mounted in the middle of the arm. Subsequent tests would show that the length of the arm prevented the servo from moving it fast enough to give a good pseudo representation of a seismograph.
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