Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.
First time visiting? Here are some places to start:- Looking for a certain topic? Check out the categories filter or use Search (upper right).
- Need support? Ask a question to our Community Support category.
- Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
- Be respectful, on topic and if you see a problem, Flag it.
If you would like to contact our Community Manager personally, feel free to send a private message or an email.
Options
How can I change the units of measure to nanometers?
monroe_weber_shirk
Member Posts: 96 EDU
in Drawings
I can't find any options for editing the available units. I'd like to create drawings of clay particles and I'd like the measurements to be correct.
0
Best Answers
-
Options
MBartlett21
Member, OS Professional, Developers Posts: 2,034 EDU
@monroe_weber_shirk
Onshape's modelling kernel, Parasolid, does not work very well with tiny measurements (I think its smallest available measurement is 0.001 mm or 1 um). This means that you will probably have to draw your model as a scaled version.5 -
Options
elif
Onshape Employees Posts: 50 
Sorry to negate Neil, but Parasolid is in fact dimensionless. We currently take it so that 1 = 1 meter. nm as a unit is currently not supported as it falls into modeling tolerances.
I know that we are internally tracking an improvement request that would allow modeling on a smaller scale. Please check in Improvement Requests and vote or create one to collect votes from the community.Team Lead, Part Studios6
Answers
Onshape's modelling kernel, Parasolid, does not work very well with tiny measurements (I think its smallest available measurement is 0.001 mm or 1 um). This means that you will probably have to draw your model as a scaled version.
IR for AS/NZS 1100
I know that we are internally tracking an improvement request that would allow modeling on a smaller scale. Please check in Improvement Requests and vote or create one to collect votes from the community.