27 Feb '17, 6pm

The Tiko Printer: What Happens When You Innovate Too Much

The problem with layer shifting wasn’t the stepper. It was slop in the guides on the carriage, flexing of the rods connecting the carriages to the head, and backlash in the gearbox of the stepper. A bunch of users quickly figured out the modifications needed to fix all of those, and for those people, there’s no real layer shifting issue. The slop and flex was due to the fact that they were injection molded plastic, so the tolerances probably just weren’t there. The *bigger* problem is almost certainly the *extruder*, which is just stupidly unreliable – it’s basically just a gear that eats into filament, shoving it down the tube, but there’s no real tensioner to ensure that the filament’s coming in correctly. I’ve seen *so* many people bring up the layer shifting, but that’s correctable. (Correctable to a ‘precision 3D printer’ level, I dunno, but correctable to an ‘OK prin...

Full article: http://hackaday.com/2017/02/27/the-tiko-printer-what-happ...

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