As a test I just did a quotation for a hollow vase and was surprised at the total amount.
This is since the quote only takes the volume into consideration. Is it possible to have a check-box for hollow models (vases) so a quote calculated more correctly?
Is it possible for me as a Hub to override the charged amount?
Having the ability to state the amount of infill (in your case 0%) that you would like your model to have is definitely a good feature to have, I’ll forward you suggestion to our development time
At the moment you can’t override the quotes just yet but this is a feature that is high on our priority list and you can expect it to be added soon.