One of many challenges with 3D printing is seeing how far designs will be pushed earlier than they break. This contains elements like versatile hinges and structural parts, but in addition smaller particulars similar to screw threads. Typically metallic inserts with threads are added to FDM 3D prints by melting them into the plastic, however may 3D printed threads be ample for a lot of instances? This can be a query which [Adam Harig] sought to research in a current video whereas engaged on elements that may hook up with a quite costly digicam.
Reasonably than risking the digicam, a number of stand-in cubes printed in PLA+ (AnkerMake model) had been used, with these and their inner thread being uncovered to damaging testing. For the measuring tools solely a baggage/fishing scale was used. The distinction between the take a look at elements was the quantity of infill, starting from 10 to 100% infill, with 0.2 mm layer top. After this the take a look at concerned pulling on the metallic hook screwed into the plastic take a look at merchandise with the dimensions, as much as the purpose of failure or the human factor giving up.
The outcomes are quite attention-grabbing, with the 100% infill model scoring higher than than the 50% infill model (the following step down), with [Adam] giving up on making an attempt to tug the take a look at unit aside and with the dimensions maxed out. This gave him sufficient confidence to make use of this design to elevate his whole digicam off the desk. What’s maybe most attention-grabbing right here is that the way in which the take a look at gadgets had been printed, the layers skilled a peeling power, which as the ultimate clips within the video present appeared to usually consequence within the backside layers making a gift of, which was the half not being held collectively by the metallic screw contained in the merchandise. What the impact of dynamic hundreds are is one thing that ought to probably even be investigated, however it does present that FDM printing screw threads is probably not that foolish.
(Due to [Pidog] for the tip)