USB VS SD Card

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CCRN
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Joined: Wed Jun 01, 2016 6:15 pm

USB VS SD Card

Post by CCRN » Sun Jun 05, 2016 8:52 pm

Just a quick question. Is it better to use USB vs the SD Card for printing? Can you pause a print to change colors?

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Jerold

jsc
Posts: 1863
Joined: Thu Apr 10, 2014 4:00 am

Re: USB VS SD Card

Post by jsc » Sun Jun 05, 2016 8:59 pm

There's really little to recommend one over the other.

If you print over USB, you can often adjust speed/extrusion settings on the fly, depending on your host program. If you print via SD card, you are less liable to get slowdown issues on models with lots of high resolution arcs, which can overwhelm the USB transfer speed. Printing via USB makes your print success reliant on your computer staying awake, not stalling on external drive spinup, etc, unless you use something like OctoPrint on a dedicated computer. It is one less step to print using USB.

You can pause prints to change filament, there is an excellent writeup in a stickied post: viewtopic.php?f=3&t=2132

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sthone
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Re: USB VS SD Card

Post by sthone » Mon Jun 06, 2016 1:20 am

I've been bitten in the arse once to many times trying to print via USB so I print mainly via the SD card now. (unless it's something quick say under an hour I still chance it now and again and use the USB.)
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