Prices depend really a lot on the model itself, that's why I can't give fixed numbers. It's not just size or weight, also geometry and potential work I might need to do on the files to make them print well for example.
All of those are valid points, but how about having an hourly rate
[just for the printing part], apart from the expenses in regards to the filament types and everything else that you mentioned?
I made myself a Excel chart where I plug in the time & material weight + pre- (digital, if needed) and post-processing (physical, if needed) times & it spits out something. Then I round it up for my 3D printer piggybank
So I'm not sure what the hourly rate for printing is right now, it's mostly just the electricity cost per hour * time * 0,15kW since the printer pulls on average 150W if I remember correctly.
potential work I might need to do on the files to make them print well for example.
Assuming that the STL files came from "
Thingiverse", does it still require some sort of adjustment from your end?
Usually they are fine, but Thingiverse files can have issues as well. It's all community content, after all. I'd let you know before charging you anything though!
Also do note that depending on license I might not be allowed to print some of the files ('non-commercial' licenses etc.)
For Bitcoin related items, I also charge less than for other items,
That's interesting
Is there a percentage?
As I said, it's just something I do in my spare time so I don't need to make a lot of money off it. Just for material and electricity mostly.
I believe there's no post-processing, am I right?
When it's for Bitcoin stuff and paid in Bitcoin, I mostly just charge material and a little for machine wear & tear so I can continue to do this without subsidizing with own money. Post-processing is something I can do sure, but if it's too much I can't sit there for hours finishing up something for free