[Technogym] - [Urethane-plates] - [training plate for setups]

marcellosavoldi commented 2 years ago

Description	Field
Datasheet component	[ wbsite ]
Project	setup and others
Alias Creo	[Technogym]
IIT-Code	16241,16242, 16243, 16244
Applicant	Marcello Savoldi, @marcellosavoldi
Supervisor	Luca Fiorio, @fiorisi
Maintainer	Marcello Savoldi, @marcellosavoldi
Coworkers	@icub-tech-iit/silo-mech

Attachment:

	Foro asta	D Max	H
Peso da 1.25 Kg	50 mm	166 mm	21.5 ± 0.5 mm
Peso da 2.5 Kg	50 mm	198 mm	27.5 ± 0.5 mm
Peso da 5 Kg	50 mm	240 mm	38 ± 0.5 mm
Peso da 10 Kg	50 mm	320 mm	40 ± 0.5 mm
Peso da 20 Kg

Notes:

Checklist:

Complete the checklist in order to proceed with the request.

[x] Created the Alias following the standard convention.
[x] Added, if necessary, the source files (STEP, IGS, etc), the links/datasheets/drawings or other information used to create the library part.
[x] File imported using the Creo start part commercial.
[x] Checked mass properties.
[x] Checked if one special case applies to this component.
[x] Converted the files with the EDU-COM license.
[x] Created IIT code in WINGST with manufacturer and at least one supplier.

marcellosavoldi commented 2 years ago

I created the family table technogym_training_plate.prt

but I've some problems to define the different density for all plates... Who can help me?

@icub-tech-iit/silo-mech

fiorisi commented 2 years ago

@marcellosavoldi in this case I think that we have to rely on the Alternate mass properties. This https://www.ptc.com/en/support/article/CS187047 could be an approach that requires changing the mass properties source (see also https://github.com/icub-tech-iit/cad-libraries/wiki/PTC-Creo-Guidelines#assigned-vs-computed-mass-properties). Nevertheless, I think that following this procedure the CoM coordinates are not computed. To solve this we might have to define the alternate density.

If you can try this option, then we can discuss it and approve it at the next silo-meeting.

divyashah commented 2 years ago

I had the similar problem of assigning mass properties for family tables for the issue of Seeger Rings (https://github.com/icub-tech-iit/cad-libraries/issues/56). We decided not use seeger rings at that time, so that issue got pushed into icebox.

If you can try this option, then we can discuss it and approve it at the next silo-meeting.

Now, I can try to help look into this and I think we already have this point for discussion in our list for the silo-mech meeting.

@marcellosavoldi @fiorisi

divyashah commented 2 years ago

With the previous commit, I modified the family table by adding a parameter WEIGHT:

Following the solution proposed in https://github.com/icub-tech-iit/cad-mechanics/issues/214#issuecomment-1155507804, I also updated the relations so as to assign calculated density for each instance:

Now the mass properties are correctly shown for each instance, for example:

cc @marcellosavoldi @fiorisi

divyashah commented 2 years ago

Removed additional parameters from the file to be coherent with the start-part commercial. Closing the issue now.

icub-tech-iit / cad-libraries