Not to intrude too much of my opinion
, but if you have the opportunity, you might consider using one of the nylon filaments. The extruder needs to be run at a hotter temperature and the base needs to be much warmer than when using most other filaments, but the pieces are SIGNIFICANTLY stronger than PLA, especially when subjected to blows and torque.
I’ve been printing most things using PLA through my local library and their print tech is not yet comfortable attempting other filaments. The pluses and minuses of PLA and ABS are easily found on YouTube and I am finding that for most things I design, one or the other is acceptable, though not optimal.
I won’t get my 3D printer until October or later (or maybe at all
) as I invested in a Kickstarter campaign for a delta model printer (IVI if anyone is curious).
If because of your clubs requirements, you must use only PLA, be certain that the fill is %100!
The above is just my 2 cents, but as I delve more into 3D printing and CNC carving to augment my woodworking addiction, I find that “constructive hobbies” seem to require more planning and forethought when integrating the plastics of 3D prints.
As an “older than dirt” old fart, I’m getting more adventurous in what I want to design and build (too old for a midlife crisis, so I have no good idea, other than significant added chances at living life
). But I’m also trying to become better educated and prepared, since “winging it” seems to have less and less appeal.
If you want a great 10 minute tutorial on filaments, search YouTube for a filament comparison from Matterhackers. There are a few others, but the changes in filaments changes constantly as different companies make new compounds.
Again, I apologize if I intruded too much, but the idea of a coupler exploding at 4000 rpm is not my idea of fun.