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Sara replied to the topic Modelling skin attached to tissue in the forum Using SOFA 6 months ago
Hi Hugo,
Thanks for your reply. Yes, I have been actually having trouble setting the alarm distance, contact distance and time step. So far, I have managed by trial and error, but as you can imagine this is very time consuming and still gives me a slow simulation with lag as well as occasional contact failure. Each time I make an adjustment to…[Read more]
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Sara started the topic Modelling skin attached to tissue in the forum Using SOFA 6 months, 1 week ago
Hi SOFA forum,
I have modelled breast tissue in SOFA under the assumptions of homogeneity and linearity, and would like to attach now a 1.5-2 mm thick ‘skin’ on top of my hemispherical model. I am not attempting to make an especially accurate model, but would like an approximate behaviour instead. How can I go about doing this? I will give some…[Read more]
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Sara replied to the topic Cable-Driven Actuation in the forum Programming with SOFA 6 months, 2 weeks ago
It was the fixing boxes… It’s solved!
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Sara replied to the topic Cable-Driven Actuation in the forum Programming with SOFA 6 months, 2 weeks ago
Hi Elie,
It works!!! I kept having problems until I added print(self.cableconstraintvalue.value) as well as print(c) like you recommended.
Thanks so much for your help,
Sara
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Sara replied to the topic Cable-Driven Actuation in the forum Programming with SOFA 6 months, 2 weeks ago
Hi Elie,
Thanks for getting back to me so quickly! I have used your exact code and it has solved my translation issue- the finger moves in the plane, it is just not bending. I am sure the implementation is now correct, it is just not working in my scene. I am using mac OSX- do you think it could be a hotkey issue? Even though I am using [cmd +…[Read more]
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Sara replied to the topic Cable-Driven Actuation in the forum Programming with SOFA 6 months, 2 weeks ago
Hi Elie,
Thanks very much for your help! You’re right, I have forgotten to include that mesh. I am able to move the finger in the plane now after implementing your code, but it will not close or open (bend inwards or outwards). I have had this similar problem when I tried the CableGripper/PneunetGripper SoftRobots tutorials; is it something to…[Read more]
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Sara replied to the topic Cable-Driven Actuation in the forum Programming with SOFA 6 months, 2 weeks ago
Hi SOFA,
I am trying to debug my code to find out why my gripper finger is not moving. I have simplified it down to just one finger with all the basic components necessary to simulate cable actuation. I am not getting any results, I think I am missing something important or doing something wrong. I’ve attached a file below that contains both…[Read more]
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Sara replied to the topic how to make tetrahedron msh file with meshlab? in the forum Getting Started 6 months, 2 weeks ago
Hi again RowingMK2,
I have used your linked files to create surface and volumetric meshes and loaded them into SOFA. I did not seem to face any problems and they appeared to be fine.
I have included my mesh files in the same link you…[Read more]
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Sara replied to the topic how to make tetrahedron msh file with meshlab? in the forum Getting Started 6 months, 3 weeks ago
Hi RowingMK2,
I was facing this problem last week, and have recently resolved it. I will walk you through step-by-step what I did. I roughly followed the instructions given here:
You must first export your design file in *.brep format. This will depend on the CAD software you are using; for me, I am using SolidWorks, and so I exported my…[Read more]
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Sara changed their profile picture 6 months, 3 weeks ago
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Sara started the topic Cable-Driven Actuation in the forum Programming with SOFA 6 months, 3 weeks ago
Hi SOFA forum,
I have been trying to implement a cable-driven actuation mechanism to my soft gripper. I followed roughly the same process as the CableGripper tutorial available for the SoftRobots plugin. I have debugged my code and every thing seems to be running okay (no obvious errors or warnings). However, when I try to interactively move my…[Read more]
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Sara became a registered member 7 months ago