So from below I read $0.25/cm3 material cost
Based on rough properties i get these:
@ 1.25g/cm3*($40/1000g filament) = 5 cents/cm3 material cost
@ 1.25g/cm3*((180C-20C)*2J/gK*$.2/kWh*0.00027kWh/J) = 1.7 cents/cm3
heating energy cost...maybe we should try printing through a kill-a-watt to
see how it adds up with motors, controller, PC too if we want the whole
energy component of unit cost.
So the big question is really of labor, of who is going to do the manifold
checking, slicing, setup, babysitting while it prints, and verification of
the complete part, and how much is their time worth. Volunteers? Do we
put that responsibility on the customer and offer accordingly lower prices?
If we go with that model, how do we foolproof the interface for the
machines? If there's interest, we could put together a proposal for
crowdfunding a bank of 3D printers and staffing the operation. This isn't
the first time it's been brought up so maybe it's worth taking a closer
look.
For metal, it's $8/cm3 +$6 handling at shapeways (
http://www.shapeways.com/materials/steel)...anyone interested in joining
that 3D printed rocket engine design competition? :)
Mar 15, 2013 09:50:47 AM, drorex(a)gmail.com wrote:
Just a note, I recently "reverse engineered" their pricing uploaded
several objects of a known size and put their prices into a spreadsheet),
they dont actually tell you how they calculate it. It's:
$6 + $0.25/cm^3, with a minimum price of $9.50 --
so it's definitely to
your advantage to combine multiple parts into a single
upload.
On Fri, Mar 15, 2013 at 9:31 AM, Adam Stiles adam.d.stiles(a)gmail.com>
wrote:
For some reason it doesn't rank the printers by proximity -- there are
actually many in SF and Oakland that don't appear on Page 1, so click
through ... and maybe list the sudoroom printer to make a few bucks on the
side?
Find a 3D printer near
you.http://www.makexyz.com/
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