Re: 3D printed parts

North Woods /
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> live ɘvil Wrote:

> -------------------------------------------------------

> Which plastic is that printed from? How long has this proto type been

> tested?

If its PLA you get about five months before it begins to crumble/brittle from UV exposure, PETG and ABS both are going to last unless they are coming into contact with gas. You could go into some exotics like nylon and glass fiber reinforced but unless you have a spool floating around or plan on making something else (or selling a bunch) it's cheaper just to buy (a mass produced) part.

I've got PETG parts that have been outside for going on a year without becoming brittle but again no exposure to gas so you can make things work but it just depends on finding the correct material.

The nice thing about FDM printing is that you can prototype in easy to work with materials like PLA till you get things right and then swap over to a different filament and if you've got it dialed in it's easy peasy and frankly dirt cheap to get into. A decent FDM printer will run you about $200 for the printer and some basics and then about $20 for a spool of PLA to get you started.

SLA has dropped in price which is nice but part production for use isn't really economical unless you are casting in my books, SLS/SLM are dropping in price and if/when those start hitting really economical consumer prices it's going to be great. (edited)

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