Complete the sentence to describe a common business model for 3D printing services.
A popular business model for 3D printing services is the [1] model, where customers upload designs and pay per printed item.
The pay-per-use model charges customers based on each item printed, which is common in 3D printing services.
Complete the sentence to identify a business model where customers pay a fixed fee regularly.
In the [1] model, customers pay a regular fee to access 3D printing services without paying per print.
The subscription model involves customers paying a fixed fee regularly to use the service.
Fix the error in the description of a 3D printing business model.
The [1] model involves customers leasing the 3D printer and paying a monthly fee for maintenance and materials.
The leasing model allows customers to use a 3D printer by paying monthly fees, including maintenance and materials.
Fill both blanks to complete the description of a hybrid business model.
A hybrid model combines [1] pricing with [2] access, allowing customers to pay a fee and also pay per print.
The hybrid model mixes subscription (fixed fee) and pay-per-use (per print) pricing.
Fill all three blanks to complete the dictionary comprehension describing a 3D printing service pricing model.
pricing = { [1]: [2] for [3], [4] in services.items() if [2] > 0 }This dictionary comprehension creates a pricing dictionary for services with prices greater than zero.