Adding new materials

tj_thorniley

How do we add new materials? One of the parts in my new design is a light polarizing film. Apparently, it's usually a thin sheet of polyvinyl alcohol plastic (PVA/PVOH), but it's not available in the drop-down menu.

NeilCooke

@tj_thorniley - https://forum.onshape.com/discussion/7841/improvements-to-onshape-december-4th-2017#latest

Sunkmail

Google Search:             1.19 g/cm³ in kg/m³

Gives 1190 kg/m³

Jake_Rosenfeld

1.19 g/cm³ * 1/1000 kg/g *  = .00119 kg/cm³ 
.00119 kg/cm³ * 100 cm/m * 100 cm/m * 100 cm/m = 1190 kg/m³

konstantin_shiriazdanov

I see here a unit translation challenge
1.19 g/cm³ (g->0.001 kg, cm->0.01 m) = 1.19 * 0.001 kg /(0.01 m)³ = 1.19 * 0.001 / (0.01)³ kg/m³ = 1190 kg/m³

john_rousseau

Hi @tj_thorniley. Adding custom materials is a highly requested feature. Please add your vote for that feature in the improvement requests here on the forum. 

We don't provide time tables for when features will be released, but we absolutely use the votes from customers to prioritize the work. 

-John 

chrisjh777

@tj_thorniley,  You can vote for the IR here: 

 https://forum.onshape.com/discussion/4010/user-defined-materials-or-adding-a-weight-for-a-part#latest

Currently, this is the second most voted IR.  Please add your vote.

NeilCooke

@tj_thorniley - https://forum.onshape.com/discussion/7841/improvements-to-onshape-december-4th-2017#latest

tj_thorniley

Way more complicated than it ought to be. But thanks all the same. I'll give it a shot.

tj_thorniley

Quick question about adding custom density:

According to Wikipedia, the density of polyvinyl alcohol plastic is ~1.19 g/cm³.
Does that make it 1190 kg/m³?
Or .0119 kg/m³?

Sunkmail

Google Search:             1.19 g/cm³ in kg/m³

Gives 1190 kg/m³

NeilCooke

matweb.com is a good resource 

Jake_Rosenfeld

1.19 g/cm³ * 1/1000 kg/g *  = .00119 kg/cm³ 
.00119 kg/cm³ * 100 cm/m * 100 cm/m * 100 cm/m = 1190 kg/m³

konstantin_shiriazdanov

I see here a unit translation challenge
1.19 g/cm³ (g->0.001 kg, cm->0.01 m) = 1.19 * 0.001 kg /(0.01 m)³ = 1.19 * 0.001 / (0.01)³ kg/m³ = 1190 kg/m³