3D Printed Part
Once I make that change I will print it again, retest, then make the STL file available free with either a private host or some place like thingaverse.
My next project will be the plastic seat rail covers that attach to the front of the rails and hide the bolts that hold the seat frame to the body. All four of mine have broken at least twice.
Last edited by PCMusicGuy; Feb 1, 2018 at 02:07 PM.


The Best of Corvette for Corvette Enthusiasts
There are hundreds of different 3D printers and the quality of what they build is all over the place. Most of the cheap ones are just toys, their build accuracy is low, the surface quality is low and the structural integrity is low. At the other end, GE is building single crystal jet engine turbine buckets with very high end 3D printers.
I've been using 3D printers for 30+ years and while they are "cool" I find the technology to be way over hyped. Other than a "show & tell" part to pass around in a design concept meeting or to check fit in a bigger assembly they have limited real world use for me. For my line of work a functional prototype needs extremely good tolerances, finishes and material properties. 3D printing is not particularly cheap or fast either, I can frequently get 30 real parts CNC'd faster than 3D printed.
Last edited by dr_gallup; Feb 1, 2018 at 11:03 AM.
There are hundreds of different 3D printers and the quality of what they build is all over the place. Most of the cheap ones are just toys, their build accuracy is low, the surface quality is low and the structural integrity is low. At the other end, GE is building single crystal jet engine turbine buckets with very high end 3D printers.
I've been using 3D printers for 30+ years and while they are "cool" I find the technology to be way over hyped. Other than a "show & tell" part to pass around in a design concept meeting or to check fit in a bigger assembly they have limited real world use for me. For my line of work a functional prototype needs extremely good tolerances, finishes and material properties. 3D printing is not particularly cheap or fast either, I can frequently get 30 real parts CNC'd faster than 3D printed.
As a moldmaker, my experience with this goes back to the early '90s when Kodak (a local company) was monkeying with it to produce simple prototype plastic parts that were to be ultimately molded.
Back then it was called "stereo lithography" (if memory serves) and it was done in a tank filled with gel, and a computer-guided laser beam came around and solidified the portions that were to become the finished part. Something like that anyway. "3D printing" (additive manufacturing) is a new term, in comparison. My CNC mill is driven by data from my CAM software, which removes material from the workpiece. 3D printing works more or less the opposite (additive).
The Kodak parts were very brittle and would break (depending on the shape) if you dropped them on a concrete floor.
A plastics company I work with now has about a $1000 printer that they use to make prototypes and other odd things of small quantity they need -- some of which I used to machine for them.
Apparently dentists can make teeth with them now, but the finished tooth is not as durable as porcelain or gold, so the applications are limited.
But in 10-20 years, who knows where it will be. Won't matter to me!
Once I make that change I will print it again, retest, then make the STL file available free with either a private host or some place like thingaverse.
My next project will be the plastic seat rail covers that attach to the front of the rails and hide the bolts that hold the seat frame to the body. All four of mine have broken at least twice.
There are hundreds of different 3D printers and the quality of what they build is all over the place. Most of the cheap ones are just toys, their build accuracy is low, the surface quality is low and the structural integrity is low. At the other end, GE is building single crystal jet engine turbine buckets with very high end 3D printers.
I've been using 3D printers for 30+ years and while they are "cool" I find the technology to be way over hyped. Other than a "show & tell" part to pass around in a design concept meeting or to check fit in a bigger assembly they have limited real world use for me. For my line of work a functional prototype needs extremely good tolerances, finishes and material properties. 3D printing is not particularly cheap or fast either, I can frequently get 30 real parts CNC'd faster than 3D printed.


















