RE: [chrono] Fused Deposition Modeling 3d print simulation
Dan Negrut
Pendi – unfortunately there is no support for thermal analysis in Chrono. The concept of temperature does not exist. For fluid, everything is incompressible. For solids – they are solid or compliant but no temperature interplay.
Thank you for your interest, good luck with your project,
Dan
-------------------------------------------------
Mead Witter Foundation Professor
NVIDIA CUDA Fellow
Co-Director, Wisconsin Applied Computing Center
Department of Mechanical Engineering
Department of Computer Science
University of Wisconsin - Madison
4150ME, 1513 University Avenue
Madison, WI 53706-1572
608 265 2316 (Fax)
http://homepages.cae.wisc.edu/~negrut
-------------------------------------------------
From: projec...@googlegroups.com [mailto:projec...@googlegroups.com]
On Behalf Of Pendi
Sent: Saturday, June 1, 2019 8:41 AM
To: ProjectChrono <projec...@googlegroups.com>
Subject: [chrono] Fused Deposition Modeling 3d print simulation
Hello community,
i am new here.
I need to simulate the fdm process of our 3d printer in order to identify construction issues before the real print. (by bachelor-thesis)
I figured out, that it's a lot of math, physics, numeric, ...
So i decided to use an existing physics solution: chronoProject. It looks promising.
Now, i have 2 ideas:
1. Idea:
The printer-path is discretized by voxels.
1. compute the temperature-history of the part
2. apply it to the stress computation of the part
-> Here i think the FEA-Module of chronos is sufficient?
2. Idea:
Use the FIS-Module of chronos to simulate the melting, solidification process, the materialflow out of the heated printer, the hit on the ground, the air, ... until the model has finished.
I know, this is a lot of math..., but it's more accurate.
What idea would you suggest?
Are the ideas both possible to simulate in chrono?
Thank you very much
pendi
--
You received this message because you are subscribed to the Google Groups "ProjectChrono" group.
To unsubscribe from this group and stop receiving emails from it, send an email to
projectchron...@googlegroups.com.
To post to this group, send email to
projec...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/projectchrono/2d80d6dd-256c-4f9b-9fb9-589af90a7df8%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
Jelle Spijker
I'm a Mechatronic/Software engineer at Ultimaker. As you might know Ultimaker is located in the Netherlands and develops 3D printers and has the open source slicer Cura in its portfolio ( https://github.com/Ultimaker/Cura ). Last year I did an extensive design study for the development of a new liquefier and extrusion die, in other words "the hot-end". What Dan says is absolutely correct, and don't get me wrong, I love project chrono, but chrono isn't the tool for this problem. The molten filament acts as a temperature depended thixotropic fluid and that is exactly what chrono can't handle.
I made my own custom solver for this, where I split it up in a simpel thermodynamic linear problem (convection and conduction) and a micro fluid pipe problem.
An other fun fact. I stumbled upon your message today because I was just starting up a personal hobby project of mine: a FDM gcode interpreter where the motion of the gantry can be simulated. You guessed it, with the help of Project Chrono and QT 3D. Which has apparently never been done before looking at the scarcity of documentation on it. But he I like a challenge.
kind regards,
Jelle