If it's always in one direction, I'd suspect an intermittent connection to the drive motor.

Thanks for the comments! I'll have to check the notes I have on doing a cold-pull, which I believe you do with the extruder unmounted. I've been thinking about machining a "handle" that would clamp onto the extruder the way the normal mount does. I'd prefer not to chew up the mounting surface with p...

I switched from red eSun PETG to some white HatchBox PETG, and after purging the extruder for a while and starting a small print job, I started getting clicking (actually, more of a clunking...) from the printer. The part was long & skinny in the Y directions, and it was most noticeable when it was ...

I've been using S3D, and recently upgraded to the latest version, 4.1.1. Well, they've changed a bunch of stuff, and I spent a couple days dealing with adhesion problems because they altered the way the first layer height works. I've also seen a host of other issues come up on the S3D forum that mak...

You may find that PETG has all the properties you need, and it is generally much easier to work with. It doesn't suck up moisture for one thing.

If your filament drive tension is "loose" as you say, all the gear will do is chew off filament material. It needs to bite in and not slip. If you retract the filament, or observe it going into the hotend when it's running, you should see definite teeth marks when the tension is set right. Check out...

Thanks for the factory file! I'm a bit confused by this "Here is a link to a factory file for my calibration square which uses a Extrusion multiplier of .4 not 4.2." Do you mean width, and if so, I assume you meant ".4 not .42"? For adhesion, I've tried polyimide, glass, glass with glue stick and gl...

It's an M2E, with a 0.35 mm nozzle. I've used Hatchbox white & black PETG successfully in the past, using Jules's detailed notes on PETG printer settings. This stuff behaves a bit different from the Hatchbox filaments. I'm re-running the 240C temperature test. First attempt lost bed adhesion, so I m...

Thanks! I had layer adhesion issues, and cranked it up early on, but I was in the process of backing off the temperature without cooling when I spotted the pinholes.

I'll try 250 & 245 and report back.

I'm trying to dial in the settings for a new spool of eSun red PETG. I've run some single wall calibration cubes, and I'm getting tiny pin holes in the walls. This is in the middle of walls well away from the starting point, so it doesn't have anything to do with retraction, coasting, wiping, etc. I...