Hi Folks, bit lost for places to start diagnosing this one... ZoneStar (2015 model) printer - set up as per rather amusing instructions and using provided firmware. A few teething issues but OK. (TBH I looked at the custom firmware configurator - no idea where to start eliminating options) Set it to run a rather large print - 5-7 days at 0.1mm layer height. 3/4 of the way through the extruder stopped extruding. the head kept moving in the XYZ, but there was nothing coming out. The temperature display said def/ 0 oC def/ 0 oC. OK, something screwy with both temperature modules? maybe? Luckily I have a spare extruder. fit spare extruder, do a few test runs - all OK. do a longer test run - same problem. I'm open to suggestions for what to look at next... things I've noticed. The extruder makes a clicking noise, and you can see it slipping. I disassembled the clamp to check the cogs - now have no idea how tight to make the spring or how to adjust the spring. https://reprap.org/forum/read.php?406,690541,690541#msg-690541 Tue, 16 Jun 2026 10:51:01 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?406,690541,690543#msg-690543 https://reprap.org/forum/read.php?406,690541,690543#msg-690543
I searched for a reasonable amount of time for a solution before posting this..

very next hit I looked at was this one, which almost perfectly describes most of my problem... enough that I can start troubleshooting at least...

[www.rc-cam.com]

(and references this one too [www.geeetech.com] )

I'll see how I go and post an update.]]> bulwynkl Prusa i3 and variants Wed, 20 Jul 2016 23:40:18 -0400 https://reprap.org/forum/read.php?406,690541,690541#msg-690541 https://reprap.org/forum/read.php?406,690541,690541#msg-690541
bit lost for places to start diagnosing this one...

ZoneStar (2015 model) printer - set up as per rather amusing instructions and using provided firmware. A few teething issues but OK. (TBH I looked at the custom firmware configurator - no idea where to start eliminating options)

Set it to run a rather large print - 5-7 days at 0.1mm layer height.

3/4 of the way through the extruder stopped extruding. the head kept moving in the XYZ, but there was nothing coming out. The temperature display said def/ 0 oC def/ 0 oC. OK, something screwy with both temperature modules? maybe? Luckily I have a spare extruder.

fit spare extruder, do a few test runs - all OK.

do a longer test run - same problem.

I'm open to suggestions for what to look at next...

things I've noticed.

The extruder makes a clicking noise, and you can see it slipping.

I disassembled the clamp to check the cogs - now have no idea how tight to make the spring or how to adjust the spring.]]> bulwynkl Prusa i3 and variants Wed, 20 Jul 2016 23:28:28 -0400