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SD suddenly stops working after it has been working fine

Posted by James G-J 
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James G-J
SD suddenly stops working after it has been working fine
May 19, 2016 12:51PM
I've been using the SD card reader on my reprap discount smart controller for a little while now with no issues until the other day it suddenly stopped reading the card.

The card works fine through the computer, and the files show up. When inserted into the printer, it says 'card inserted' but says 'no sd card' in the menu. I've tried erasing and reformatting the card with no success.

Any suggestions would be helpful I'm all out of ideas
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DjDemonD
Re: SD suddenly stops working after it has been working fine
May 19, 2016 04:02PM
Do other sd cards work or is it just that one?

Simon Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions
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James G-J
Re: SD suddenly stops working after it has been working fine
May 20, 2016 02:01PM
Yup I've tried two different Kingston 8gb microSD with SD adaptor, same result with both
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3dGriff
Re: SD suddenly stops working after it has been working fine
May 22, 2016 03:22AM
I just recently started having a similar issue, hoping to look into it next week. I will update if we can trace the issue—just wanted to let you know you're not alone. Let us know if you find the issue as well. Thanks.

Hooklet3d/Bad Code LLC
www.hooklet3d.com
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DjDemonD
Re: SD suddenly stops working after it has been working fine
May 22, 2016 04:25AM
I have one sd card reader, a panelone which only works if I set sdslow in marlin. Might be worth flashing your firmware with one of these options. Not sure that's it but it's easy enough to do. Doesn't affect actual printing performance.

Edited 1 time(s). Last edit at 05/22/2016 04:25AM by DjDemonD.

Simon Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions
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jinx
Re: SD suddenly stops working after it has been working fine
May 22, 2016 06:20AM
I need to double check, but I thought marlin can only use 4GB cards max.
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DjDemonD
Re: SD suddenly stops working after it has been working fine
May 22, 2016 08:10AM
I use larger cards than that all the time, running marlin Rc.
But I never fill them up so maybe it only reads the first 4gb, would never find out though.

Simon Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions
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James G-J
Re: SD suddenly stops working after it has been working fine
May 22, 2016 02:18PM
What do you mean by setting sdslow? Where can I find that line in marlin and what do I do to set that?

Edit: found it in configuration.h but had no effect

Edited 1 time(s). Last edit at 05/22/2016 02:22PM by James G-J.
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DjDemonD
Re: SD suddenly stops working after it has been working fine
May 22, 2016 02:23PM
In marlin rc it's in configuration.h underneath define_sdsupport. In this version they've options to drop to half speed, quarter speed or one eighth speed. In previous versions it's was define_sdslow.

Simon Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions
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James G-J
Re: SD suddenly stops working after it has been working fine
May 22, 2016 02:38PM
How can you adjust the speeds? I just see the line to uncomment but how can I tweak it?
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the_digital_dentist
Re: SD suddenly stops working after it has been working fine
May 22, 2016 02:44PM
James G-J,

you've tried two uSD card of the same brand, with an adapter inserted between the card and the printer. Those little adapters are notoriously unreliable and it may be the source of your trouble. I suggest you get a full sized SD card or two of different brands and try them in the printer.

Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]
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DjDemonD
Re: SD suddenly stops working after it has been working fine
May 22, 2016 02:50PM
So you uncomment either

define_sdlslow

or

define SPI_SPEED SPI_HALF_SPEED

depending on your marlin version.

Simon Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions
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James G-J
Re: SD suddenly stops working after it has been working fine
May 22, 2016 03:02PM
My version only has the line #define SDSLOW, nothing with SPI. Does that mean there's only one reduced speed I can use?

And I'll have to order a small card then as nowhere local sells small full SD cards. Is there a brand that you would recommend? And maybe try 2GB this time?
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DjDemonD
Re: SD suddenly stops working after it has been working fine
May 22, 2016 03:15PM
Yes just uncomment #define SDSLOW, reupload and try again.
It's worth a try.

Simon Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions
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James G-J
Re: SD suddenly stops working after it has been working fine
May 27, 2016 01:45PM
Got my hands on some 2GB sandisk ultra SD cards, which don't change anything. Tried sd slow with no luck.
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