Hi @lucalab and welcome!
That’s a lot of questions. I’ll do my best…
There are a few options:
You can manually charge members for pretty much anything by going to their detail page, selecting “Charges & invoices” and clicking on “Add a charge or credit”.
Some labs use an automated, two-step approach for charging for filament:
- Extract information from your 3D printer about the amount of material used and store it in the
metadata field of the corresponding activity via our API.
- Use a webhook to get notified when an activity is created or updated and automatically generate a charge for the member via our API based on the information in the
This approach allows you to automatically charge people however you like, but it requires some programming. @roland has documented how Happylab does it for their Formlabs printers and I think they have something similar for their Stratasys printers. @walterw tried a similar approach for their Ultimaker printers and @mzuzelka experimented with getting that information from Prusa printers, if I remember correctly. Maybe these guys can tell you more.
There will be other options in the (near) future. In particular, we plan to allow members to pay directly via the member portal using common payment methods rather soon.
Fabman keeps all booking and usage data for as long as you’ve chosen in your account settings. At the moment yon can browse this data in Fabman
- as part of the overview visualization and
- as lists you can filter.
If you want to analyze the data in more detail, you can export it by member, machine, date range, etc. as CSV file and visualize it using your favorite spreadsheet program.
Not via the application, but if you know a little bit of programming, you can use our open Fabman API to create members and assign them key cards in batch. Let me know if you need more information about that.
We don’t store any data on the cards, but you can use Fabman as a prepaid system by enabling “Require upfront payment” for these student members. Their available amount is not stored on their card, instead it’s linked to their member account. See our related help article for details.
I hope that helps.