Basics

As of now this is family/individual aimed, perhaps make business/industry/school pages/subsections?
This page aims to:
- Show various advantages of having a 3D Printer
- Determine potential savings via use of printed objects
- Provide a template for a sort of personalized "sales pitch"

Why

Often there is a late night broken device, or a need for a small, rare, plastic part, or a custom gasket
Without a 3d printer, this requires either a store run (if the store is open and in stock...), an online order where shipping often costs mre than the part and may take a long time to arrive, or simply allowing the device to die/replace it
With a 3D Printer with a sketched up model in cad (found online, or made by you), and an hour to a few hours (all depends on part dimentions, a small thin gear may take minutes, a large cover may take hours) and you have your part

Things like, Organization, Shop Work, Cooking, and all sorts of things can benefit from small tools/devices/jigs/custom solutions (handles for drawers, saftey devices like outlet covers etc)
Many of these can be 3D Printed, without needing to drive to a store, and buy it (thus no driving expenses, or premiums for labor/transportation of the product)
ALso given that it is custom made, quality is assured (no company shortcuts/ripp offs etc), and it can be modified to fit YOUR specific use (ie not general, made for the masses)

You may not have a:
- Drill Press
- CNC Router
- Bench Vise
- (Many) Clamps
And all sorts of other shot tools/devices
With a 3d printer, and some stor bough items such as metal rods, screws, and motors etc you can make these devices
Thus it can allow you to expand further, and perhaps save money in doing so

Go around and see what is "broken" write all this down
Go around and think what would be a useful gadget/jig/tool/device that would help "if only someone made it" and write these down
Think over future projects, intresting hobbies, and desired devices/machines, write these down
NEXT comes the off the shelf cost estimate
- Cost of spare parts etc for the broken stuff (if available)
- Cost of the problem solvers (if available)
- Cost of the machines/devices
Cost of hobby devices (model kits, rc frames, art tools, shop tools, planters etc)
Finally the printer based cost analysis
Look up existing models for what you need (There are MANY given the size of the internet and the many CAD Sharing Sites
Then sketch up what else is needed
Do a rough estimate of filament needed in KG
Divide this by ~20 USD/kg for pla, add a bit more for estimation errors (and more expensive materials if used) (This cost goes away once a Filament Extruder is made, which is partially 3d printed...)
Add in the convienence factor allowence + potential business profit + community help factor
Often this can make it "worth it"