Search found 8 matches

by otakuex
Fri Jan 11, 2019 2:52 pm
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Re: Taz 5 Temperature Drops

PSU pins 1+3 and 2+4 are 24.16VDC on each. I connected the new hotend heatsync fan to a dedicated 5V power supply. Would be nice to connect to the control board. Please let me know if anyone knows how I might do this other than the pins for the mini blower. I still have to clear the last filament ja...
by otakuex
Wed Jan 09, 2019 11:35 pm
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Re: Taz 5 Temperature Drops

Thanks so much for your replies. After a YEAR (I moved and had to put this on hold for some months), I finally found the issue. I added a 2nd fan for the hotend heatsync in parallel with the mini blower. It was causing too much draw it seems and it was pulling power away from the thermistor somehow?...
by otakuex
Mon Feb 05, 2018 2:05 pm
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Re: Taz 5 Temperature Drops

Thanks ScottW. Just to make sure I didn't make a mistake, I recently replaced the thermistor and heater cartridge with the following parts. https://www.lulzbot.com/store/parts/100k-semitec-gt-2-thermistor https://itworks3d.com/product/ceramic-heater-cartridge-hexagon-hotend/?attribute_voltage-resist...
by otakuex
Mon Feb 05, 2018 10:01 am
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Re: Taz 5 Temperature Drops

See attached Serial.log. It looks like line 7186 (2018-02-04 17:45:10,640) is the last good temp "209.6 /210.0". Then it clearly starts going down at line 7432 (2018-02-04 17:45:16,100). This is when (+/- a few seconds) I saw the OctoPrint temp graph start to drop. I searched and couldn't find an "S...
by otakuex
Fri Feb 02, 2018 3:31 pm
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Re: Taz 5 Temperature Drops

If that doesn't work out, I just confirmed that Octoprint's serial logging ("Settings, Serial Connection, Log communication to serial.log") captures everything sent/received, and timestamps each entry. There is a warning about the performance hit, but I ran a print with it enabled and didn't see an...
by otakuex
Fri Feb 02, 2018 10:33 am
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Re: Taz 5 Temperature Drops

I'll try recording my screen with the console up on one computer while watching the temp graph on another. I'll post some results tomorrow.
by otakuex
Thu Feb 01, 2018 2:28 pm
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Re: Taz 5 Temperature Drops

Took some time to get my hands on a reliable multimeter, but the resistances check out. At room temperature I got about 19.9 ohms for the heater cartridge, as well as the old one I had previously replaced, and about 108k ohms for the thermistor. But I don't think there was reason to suspect it since...
by otakuex
Mon Jan 29, 2018 11:18 am
Forum: Hardware
Topic: Taz 5 Temperature Drops
Replies: 14
Views: 6385

Taz 5 Temperature Drops

I've repeatedly tried and failed to run a 54 hour 400G print. Everything starts fine, but a few hours in the actual temperature drops below the melting point of my eSun PLA and it starts printing in air. I've run the print both from the SD card and from my Octopi. The last time I ran it without fila...