Long print time on Raspberry Pi b+ v1.4


#1

I installed the most recent released version of Octoprint on my Raspberry Pi B+. Everything seemed to be working fine and I was printing some parts that I got from Thingiverse. Up to this point I was using the SD card transfer method and printing from SD.

I have a Monoprice Mini Delta.

I tried printing a part through Octoprint that I had previously printed with the SD Card transfer. I noticed the Cura estimated print time was about 1.5 hours. When I started the print on Octoprint the estimated time, after stabilization, was 7.5 hours.

The printer came with a test part, small cat, gcode file. I copied this onto an SD card and printed it, it took about 1 hour. When I upload the gcode to Octoprint and print it, it takes 6.5 hours.

I looked at the gcode commands on ther terminal screen. It doesn't look like there are any lost commands where the printer requires them to be resent.

I have the baud rate set to 250k.

Is the Raspberry Pi B+ not powerful enough to run Octoprint?


#2

Share both of the gcode files. Are you on the original (pi1) b+?


#3

I incorrectly typed 1 hour in my original post, it should've been 3 hours and the Octoprint basically doubled the print time. This is one of the files, the longer one, that I printed.
I have since restarted my Octoprint by doing a clean install and not doing the software version upgrade (so it looks like I'm running 1.3.8). After reinstalling, I did not connect my PS3 eye camera. I wanted it as simple as possible with as little load as possible.
I'm printing a calibration cube now through Octoprint and timing the overall print time, when it's done I will print the cube again through the SD card to see what the difference is.
I suspect, correct me if this doesn't make sense, that the time lapse may have been slowing it down.

MMD_xyzCalibration_cube.zip (133.8 KB)


#4

That was the wrong file, attached is the correct one that essentially doubled the print time.MMD_Outer_Gimbal_Mk02.zip (2.0 MB)


#5

Any help on this? I'd like to use my Pi to control my printer but if I use the webcam the prints are incrediblely slow. Any larger print can triple in time if I'm using the camera, even with Time lapse off.

What else could be slwojng the prints down?