Search found 41 matches

by eussrh
Wed Feb 13, 2019 10:28 pm
Forum: LulzBot TAZ
Topic: TAZ5 underextruding by half
Replies: 3
Views: 253

Re: TAZ5 underextruding by half

I tested again and once it extruded 65% of the requested distance and another time it extruded 55% of the required distance. I will check for loose wiring although not sure how since it is intermittent apparently. I tried an alternate extruder head with similar results so it is not the extruder head...
by eussrh
Tue Feb 12, 2019 11:54 pm
Forum: LulzBot TAZ
Topic: TAZ5 underextruding by half
Replies: 3
Views: 253

TAZ5 underextruding by half

My TAZ suddenly started underextruding. No hardware or software changes. I measured the extrusion rate and it is half what it should be. All other axis are ok. I changed esteps/mm to 1666 (twice what it was previously) and it works correctly now. So it sounds like it mysteriously decided to go to 1/...
by eussrh
Sun Aug 27, 2017 2:41 pm
Forum: Hardware
Topic: JamSentry, a device to detect filament jams and runouts
Replies: 1
Views: 580

JamSentry, a device to detect filament jams and runouts

Here is a device I built to detect printer jams and filament runouts. I use it on my Lulzbot printers. Here is how to build one.
https://robogardens.com/?p=2220
Image
by eussrh
Sun Aug 14, 2016 9:38 pm
Forum: LulzBot TAZ
Topic: Simple filament runout sensor
Replies: 9
Views: 11064

Re: Simple filament runout sensor

So wouldn't the Filament runout switch be better if it was wired as normally closed in series with the Z-Max switch, such that either case of Z-Max or filament runout would cause a halt in the printing? You could wire it to be normally closed and in series with Z-max, but you still need firmware ch...
by eussrh
Thu Aug 11, 2016 2:47 pm
Forum: LulzBot TAZ
Topic: Simple filament runout sensor
Replies: 9
Views: 11064

Re: Simple filament runout sensor

Please come up with a different name for this. There is already a term in mechanical engineering called run-out: https://en.wikipedia.org/wiki/Runout I had completely the wrong idea of what your "out of filament" sensor did given the title of this thread. Unfortunately "filament runout" is the name...
by eussrh
Fri Aug 05, 2016 11:43 am
Forum: Hardware
Topic: Auto-pausing low-filament sensor
Replies: 8
Views: 3167

Re: Auto-pausing low-filament sensor

Thanks for the info. I guess the low filament sensor on the mini could be used to restart the process automatically. as long as you paused it in cura first, then you would have plenty of time to change it. so something like this for the mini: -sensor is tripped, causing print to pause at the mini. ...
by eussrh
Thu Aug 04, 2016 12:06 pm
Forum: LulzBot TAZ
Topic: Simple filament runout sensor
Replies: 9
Views: 11064

Re: Simple filament runout sensor

how does this work when running from cura? does the software show paused, and do you have control of the printer, just like you paused it in cura? Also, any idea if this can work on the mini? I just asked about a similar product in the development area. viewtopic.php?f=16&t=4947&p=29375#p29375 It w...
by eussrh
Thu Aug 04, 2016 11:58 am
Forum: Hardware
Topic: Auto-pausing low-filament sensor
Replies: 8
Views: 3167

Re: Auto-pausing low-filament sensor

so the pausing of the print does not go back to Cura and tell it that the machine is paused...??? There must be some communication back. or are you talking about printing from SD card only, not hooked to PC? I'm curious if there is even a hardware plug in the Mini for the sensor switch. Filament ru...
by eussrh
Thu Aug 04, 2016 11:14 am
Forum: LulzBot TAZ
Topic: Differing machine speeds
Replies: 2
Views: 678

Re: Differing machine speeds

After some testing I think I identified the problem. The machines have differing z-heights set in the eprom. The slower machine has z Offset set to 0. The faster machine has z Offset set to -3.5. So the slower machine spends more time slowly lowering the probe. With 25 points to probe, the time adds...
by eussrh
Thu Aug 04, 2016 9:39 am
Forum: Filament
Topic: Filament separation issue
Replies: 7
Views: 1767

Re: Filament separation issue

If it is heat creep, then you can put either my hot-end cooling duct & 25mm fan, (or a Taz6 hotend cooling duct & 40mm fan) in place of the wimpy stock blower. Part and installation instructions: http://www.thingiverse.com/thing:1461335 No stuck nozzles, no spaghetti, no "lace" layers, whatsoever s...