I'm using sheet metal to design a box and can't find a material that will accurately calculate the weight when I take my part to a drawing. Any ideas?
Thanks!
I'm using sheet metal to design a box and can't find a material that will accurately calculate the weight when I take my part to a drawing. Any ideas?
Thanks!
Did you look here
That looks like it would work, but I don't have that option. This is all I've got:
Is that something that was downloaded outside of the regular install of the software?
Is it loaded here
I'm definitely missing something that you have.
Where can I download that file?
It is the bottom one on the list, the other one I have is ctopher (Updated Ctopher's Material Database )
materials.
GOT IT!!! THANKS!!!
Dang... My weight is still off by about 500% or more. I have a box that is roughly 9inx77inx42in and it's showing my weight at 26lbs
In the Mass Properties window select the Override Mass Properties button, in the next window check the box Overide mass and key in .007, this should give a close estimate. Go here Densities of Solids
I am pretty sure that part of the problem is the inherent nature of cardboard.
Typical cardboard is 1 flat sheet then 1 corrugated sheet, then 1 flat sheet (sometimes there are 2 corrugated sheets and 3 flat sheets).
Either way, Solidworks is assuming that the material is solid when in reality it isn't. There is a lot of empty space there between those sheets and the corrugated sheet.
If I were to hazard a guess, I would say that this could result in at least a 50-100 75% increase in material weight that isn't actually there. (edit: OK I meant to say 75% not 100%....that would be silly... )
Scott,
Make a custom material based on Corrugated board boxes & make it's Mass Density 100 instead of 500 & see if that gets somewhere close....then adjust as needed to fine tune.
I see you have an answer marked correct. My comments may or may not suit everyone. You will have to decide for yourself.
"NOTE DO OR TRY THIS AT YOUR OWN RISK"
"NOTE DO OR TRY THIS AT YOUR OWN RISK"
"NOTE DO OR TRY THIS AT YOUR OWN RISK"
This is the actual ‘text’ from the .sldmat file for 2017. Please read my comments in their entirety before you do anything.
<material name= This indicates the start of the material description and concludes with
</material> COMMENT end of material description
<material name="201 Annealed Stainless Steel (SS)" matid="83"
You might change this to (suggested only of course:)
<material name="Cardboard" matid="XX" COMMENT Where XX is a number not used previously. You MUST search the file for a number not used. This can be a one, two or three digit number.
Actually I’m using “201 Annealed ….” As an example only, I would suggest you use a starting material that is closer in its properties to cardboard. Other properties could also require changing depending on how you will use this material. I noted “Mass Density” below only as a suggestion.
You cannot just edit and change this file as it must be ‘saved’ in a special format that is a standard practice for saving text files. Though if you want to do this you will have to search Google to find this method for yourself, I will not tell you how to do that here. In this case, you will absorb all risk in trying or using this method. Make a copy of the original .sldmat file before you do this.
I will state I have my ‘standard material file’ so edited and have added multiple materials including galvaneal, fish paper and others. I do not have to navigate to another Custom Material file. I have also used this method from 2014. These changed materials then appear in your standard material listing.
<material name="201 Annealed Stainless Steel (SS)" matid="83"
envdata="1" appdata="Material Financial Impact data is based on bulk raw material price computed from 1. MetalPrices.com (2012). Accessed May 15th, 2012, from http://www.metalprices.com/">
<physicalproperties>
<EX displayname="Elastic modulus" value="207000000000.000000" />
<NUXY displayname="Poisson's ratio" value="0.270000" />
<ALPX displayname="Thermal expansion coefficient" value="0.000017" />
<DENS displayname="Mass density" value="7859.999900" />
<KX displayname="Thermal conductivity" value="16.300000" />
<C displayname="Specific heat" value="501.999980" />
<SIGXT displayname="Tensile strength" value="685000000.000000" />
<SIGYLD displayname="Yield strength" value="292000000.000000" />
<RK displayname="Hardening factor (0.0-1.0; 0.0=isotropic; 1.0=kinematic)" value="0.850000" />
<materialmodel name="Material Model Name" type="4" />
<materialcurve id="1000" name="Stress Strain curve" type="100">
<data points="0.0014 2.8957981e+008" />
<data points="0.003 3.1715884e+008" />
<data points="0.004 3.4473786e+008" />
<data points="0.005 3.5852738e+008" />
<data points="0.006 3.5862738e+008" />
<data points="0.007 3.6542214e+008" />
<data points="0.008 3.6572214e+008" />
<data points="0.009 3.6886952e+008" />
<data points="0.01 3.7231689e+008" />
<data points="0.012 3.8610641e+008" />
<data points="0.013 3.9989592e+008" />
</materialcurve>
</physicalproperties>
<shaders>
<pwshader2 path="\metal\steel\satin finish stainless steel.p2m" name="satin finish stainless steel" isNewShader="1" />
<cgshader2 name="defaultplastic" />
</shaders>
<xhatch name="ANSI32 (Steel)" angle="0.0" scale="1.0" />
<custom>
<prop name="Financial Impact" description="" value="3.815" units="USD/kg" />
</custom>
</material> COMMENT end of material description
AGAIN! PLEASE REMEMBER THAT YOU WILL BE DOING THIS AT YOUR OWN RISK.
AGAIN! PLEASE REMEMBER THAT YOU WILL BE DOING THIS AT YOUR OWN RISK.
AGAIN! PLEASE REMEMBER THAT YOU WILL BE DOING THIS AT YOUR OWN RISK.
It is the bottom one on the list, the other one I have is ctopher (Updated Ctopher's Material Database )
materials.