There arent many posts on 3d printing use in industry, so Iet me show you how we use it in the development of new products. Already developing new products for 2017 and this is first prototype of the speareguns we will be making out of carbon fibre.
We started research in fabruary, done preliminary designes, choose harware supliers and then onto prototyping so we get some professional users feedback of whats good and whats not. If all goes well, we will be making moulds trough out the summer and starting production trough the winter, so we can have production established by the start of 2017 fishing season.
Anyways, once design locked, I cutted 3dmodel so it could fit into printable area, and designed some strenghting-joining elements and sliced the thing. We used aluminium tube for joiner, not only providing acurate joints, but also giving the gun some strenght, so one could actually used it. For reference, gun is 1400mm in lenght or roughly 54".
Printed on our own printer #Typhoon-150 with @eSUN_SHENZHEN ABS and ABS+, some #ninjaflex, sliced with kisslicer & Simplify 3d, 0.3mm layers, #E3D Volcano 0,6mm nozzle.
Cool to see the industrial side of things
Thx for sharing, its really nice that we can see some professional uses.
And I like the idea with the alutube.
As a child I was using the same idea for building a wind turbine.
I use a alutube and Styrofoam(cutting it with a hot wire)to build the form of the blade
And using slices of old T-shirts with resin as cheap diy replacement of carbonfibers 
I wished we had in 3d printers at this time Styrofoam was always a mess to clean up
@Sebastian_Schmidt we actually still today use the styrofoam technique for large volume models. We either mill the model either hot wire cut it, depends from the geometry.
Great!