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Everything has been great for about a year then now over the last few days the printer has been acting strange. Heating up and printing all start fine then somewhere at a random point during the print it will just stop moving. The heat sometimes stays on and sometime it shuts off, just no movement. Once it kept chattering the steppers.

Thinking it was the gcode I was sending I used a Mattercontrol instead of Simplify3d. It printed once perfectly, but it was only a tease and froze during subsequent prints.

Next I cleared the EEPROM and updated it to 0.92.2. Still it's freezing during about 95% of my prints. I'll get one or two out just fine.

Any ideas?

Are you printing off of the SD card, or over the USB cable?

SD. I haven’t tried a different card but it started this issue while I was using Astroprint. I then switched to SD to pull that as being part of the issue.

Sounds like the controller to me. I can't think of anything common that would affect all three axis other than that. What does it do when you try to make manual moves?

I will have to try that, but I can home the printer just fine from the blue knob after the problem happens. Wiring, power supply or the controller board were my thoughts at this point.

I don't see how it could be your wiring. The power supply might be it. And then there's the controller...

In other topical news, I just got in a Maestro, it looks sharp, and it appears to support my RepRapDiscount. It might be worth looking into.

What is a Maestro?

This problem is hopefully going to be a moot point soon. Just ordered the v3.2 upgrade...

IIRC, the Duet Maestro is a cut down version of the Duet board family meant mostly for larger OEM's to integrate it into more price sensitive printers (IE, fewer drivers, less expansion, but same web interface and computational capacity we know and love)

Pretty much, but it really isn't missing anything that you need to run a 3D printer. The stepper drivers have a lower current limit, but still well above what your steppers would normally draw. It supports two extruders and a dual Z. And it's ~$120 as opposed to ~$180.

I wonder if it would fit inside an Eris? Too many projects, not enough time,,,,

Well the issue is gone. Upgraded to the v3.2 and honestly I couldn't be happier with the upgrade. When I was performing the upgrade I did fine two possible suspects for the issue I originally posted.

One was a cut on the heated bed thermistor wire running up extruded aluminum. The wire separated on me as I was unplugging it so it was barely hanging on or could have caused intermittent contact. Replaced the wire during the upgrade.

Second, the whip was very loose plugging into the HE280. I mean like -really loose- and like it had worked itself about 90% unplugged.

Both of those were could have been causing intermittent connections and possibly the reason for the random freeze...

If the HE280 comes unplugged it can crash the RAMBo.

The 3.2 upgrade is a whole new ballgame - the Duet & SD300 are a perfect combination.

g.

Excellent!