No retraction at end of print...

[naviathan]

I'm printing with TPE and it's very flexible. I've disabled retraction entirely, but there must be a built in retraction at the end of the script because when I attempt to start a new print the filament is kinked in the extruder the same way it does when it tries to retract. I checked my ending script and there's no movements on the extruder at all. Is there some place else I should be looking?

[rrdavis]

You could check your ending script in S3D.

But more importantly, open the gcode file for the print and make sure there is actually a "G1 E-xxx" command in the file. There's a lot of reasons why the filament can get kinked, so you don't want to be chasing the wrong cause - make sure there's actually a retraction command in the file first!

[wirlybird]

I might also approach this from a hardware point. If a flexible material is getting caught up in the extruder then maybe it needs modification to handle the material better.

What printer?

[naviathan]

I did check my ending script and I don't see anything there. Didn't think about the gcode file, but I just checked and I don't see anything there either. This is really weird.

I'm running a home built i3 with an E3D Titan and V6 hot end.

[rrdavis]

Well if there isn't a "G1 E-something" command in your file, then that isn't what's causing the problem. As others mentioned, there are a lot of other causes for kinked filament, so try looking at those instead.

[naviathan]

So here's what I've figured out. Apparently the MakerFlex filament needs to be under tension to print without kinking. I noticed that it would kink the fastest after the roll would tumble a little and loosen the feed. So I tightened up the captive nuts on my spool roll and it completed the print I was trying for without an issue. Sorry for the false report. Just couldn't pin point this. I guess the first time I printed with it I had the spool tighter.