1 Topic by zburhop

  • zburhop
  • Member
  • Offline
  • Registered: 2014-03-17
  • Posts: 101

Topic: makerbot 2 large part heat failure

I have an interesting problem. My makerbot was running awesome.  Then i tried a part that took up most of the bed and it got a "loss temp"failure.  So then i printed like 30 smaller parts no issue.  Then again tried a big mart and got two failures at the exact same place in the exact same part.  Then printed a smaller part and no issue.  I replaced the thermocouple recently so i know for sure its fine.  Its not a time issue because i can easily print parts with a smaller bed surface area that las well over 5 hours. Also i noticed on the big parts if i pause the print the temperature started to climb back up where it should be. Anyone seen this before?

Zach

2 Reply by wardjr

  • wardjr
  • wardjr
  • Moderator
  • Offline
  • From: Minnesota
  • Registered: 2013-06-10
  • Posts: 5,623

Re: makerbot 2 large part heat failure

It'd be interesting to see a temp chart with the output graph.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

wardjr's Website

3 Reply by IronMan

  • IronMan
  • IronMan
  • PRINTiT
  • Offline
  • From: SC
  • Registered: 2012-09-14
  • Posts: 1,269

Re: makerbot 2 large part heat failure

Loose thermistor/thermocouple connections could be a culprit...

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
Thanks for All of Your Help!

4 Reply by widespreaddeadhead

  • widespreaddeadhead
  • Member
  • Offline
  • From: Quad Cities IA/IL
  • Registered: 2015-01-20
  • Posts: 471

Re: makerbot 2 large part heat failure

Had this happen on our Makerbot Mini twice yesterday. I've become quite the expert taking those "smart" extruders apart, and could see nothing noticeably wrong when I took it apart after the first error. When I reprinted and got the second error, I was skeptical, so I just hit resume and it went on extruding just fine.

We have two "smart" extruders, and I noticed this only happens on the one we use the most, the other is really just a back up anyway. Could be some sort of wear over time, but I'm more inclined to believe it's a weird fluke, like the filament jam detection option that really only seems to be there to try and keep people from using 3rd party filament.

FuseBox 1.5 CoreXY - e3dv6 - Graphic Smart Display
Solidoodle 2 - e3dv6 - Hobb Goblin - e3d Titan - lawsy carriages - Direct Drive Y Axis - T8 Z axis - OctoPi