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FreeCAD

Hey! Once again it's ! Show us what you are working on in .

Jan 10, 2025, 01:46 PM·Public
2boosts·9favorites
Public
Laura

@FreeCAD apparently a extruder for pastadough, to mount on a 3D-Printer....

Quiet public
Laura

@M4x @FreeCAD This is a shitpost. It would be funny (the thought of printing gyroid pasta especially), and if it develops into anything, I'll post about it. But making a food safe extruder seems pretty daunting, given the kinds of materials I'd need for the pressure....

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Laura

@M4x I might go to a simple screw driven cylinder pump, I'm sure I can get some food safe leadscrews/nuts

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Laura

@M4x doing some back of the napkin (or rather python repl as a calculator) math I'd generate about 3MPa (with a normal nema17 stepper) of pressure with the cylinder pump, and that *should* be *about* adequate. Otherwise I could reduce the cylinder area, or use a bigger motor.

Public
M4x

@FreeCAD On todays #FreeCADFriday I've added a "tilt support" to my rear lighting bracket for the basket of a kids bicycle. The first iteration worked quiet well but it's tilting a bit and the strap wasn't as tight as I wanted it to be (yes, #1stworldproblem ). While I'm writing this, I realize that I still haven't posted a picture of the 3D-printed part of the first iteration :blobpats:

Screenshot of FreeCAD showing a bracket which can (hopefully) be pushed on top of the mesh basket of a kids bicycle. The front side is rounded. This is where the rear light should be attached to. The back side is rounded too, to make the mounting strip a little tighter. At the bottom, there is a little "arm" which is going to be the tilt support (if it's still mountable to the basket...)
#FreeCAD#3dprinting
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M4x

@FreeCAD I've printed the design today. It worked flawlessly without support. Yes, the detailed contact area of the tilt support might be over-engineered for a FDM printer with a 0.4 mm nozzle. But isn't there a saying? You can never be overdressed or over-engineered (or something like that). However, it fits great. I'm going to add a rubber strip between the printed part and the light but otherwise, that's it (apart from publishing the model -> 2do list 😬 )
#FreeCAD #fc3d #3dprinting #bicycle

Version 02 Photo of a black 3D-printed (PETG) bracket which can be pushed on top of the mesh basket of a kids bicycle. A rear light is going to be attached to it.
Version 02 Photo of a black 3D-printed (PETG) bracket mounted on top of the mesh basket of a kids bicycle. A rear light is going to be attached to it. Detail view of the added tilt support which is in contact with one of the bars.
Version 02 Photo of a black 3D-printed (PETG) bracket mounted on top of the mesh basket of a kids bicycle. A rear light is attached to it.
Version 01 Photo of a black 3D-printed (PETG) bracket mounted on top of the mesh basket of a kids bicycle. A rear light is attached to it. This is the first version (non elegant installation of the rubber band of the rear light + missing tilt support).
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