I have a 16 GB Sandisk Cruzer Blade that only works for the Photon S sample cube, and only works some of the time. If I put a smaller file on it, it doesn't work. Weird.

I think it might be connected to voltage the USB port's voltage. I got a tester to look at the voltage and noticed that it doesn't even hit 5 volts. It's within spec, but my PC puts out 5.2 volts and the guy with the 32 GB stick gets 5.15 volts. I'm hoping that people who see this post, looking for help will check their voltages and post them along with a rating of how consistently their USB drive works. That may not be the problem, but I think if we work together we can figure out the actual cause and not keep giving Anycubic a break by just trying to work around it. It will never get fixed.

My problem is that when the printer sees the files and I try to print one, it says "Failed to open file!". When it displays the PWS files that are on the directory, it is supposed to include a thumbnail of the object under the filename. When you select the file to print, it should also show a preview image. If it can do both, it's a good bet that the print will work.l If it doesn't show the preview in the directory, it likely won't work. And, no directory at all is possible. I've encountered all of these conditions with the same USB. I can get it to print all the way down to not being able to display a directory at all.

I know this is an old thread, but I expect that people will find it just like I did.

I am not using the tools of Mr. Zuckerberg

Disk Utility Tool
Utility to manage local disks and volumes
Most commands require an administrator or root user

WARNING: Most destructive operations are not prompted

Usage:  diskutil [quiet] <verb> <options>, where <verb> is as follows:

     list                 (List the partitions of a disk)
     info[rmation]        (Get information on a specific disk or partition)
     listFilesystems      (List file systems available for formatting)
     listClients          (List all current disk management clients)
     activity             (Continuous log of system-wide disk arbitration)

     u[n]mount            (Unmount a single volume)
     unmountDisk          (Unmount an entire disk (all volumes))
     eject                (Eject a disk)
     mount                (Mount a single volume)
     mountDisk            (Mount an entire disk (all mountable volumes))

     enableJournal        (Enable HFS+ journaling on a mounted HFS+ volume)
     disableJournal       (Disable HFS+ journaling on a mounted HFS+ volume)
     moveJournal          (Move the HFS+ journal onto another volume)
     enableOwnership      (Exact on-disk User/Group IDs on a mounted volume)
     disableOwnership     (Ignore on-disk User/Group IDs on a mounted volume)

     rename[Volume]       (Rename a volume)

     verifyVolume         (Verify the file system data structures of a volume)
     repairVolume         (Repair the file system data structures of a volume)
     verifyDisk           (Verify the components of a partition map of a disk)
     repairDisk           (Repair the components of a partition map of a disk)
     resetFusion          (Reset the components of a machine's Fusion Drive)

     eraseDisk            (Erase an existing disk, removing all volumes)
     eraseVolume          (Erase an existing volume)
     reformat             (Erase an existing volume with same name and type)
     eraseOptical         (Erase optical media (CD/RW, DVD/RW, etc.))
     zeroDisk             (Erase a disk, writing zeros to the media)
     randomDisk           (Erase a disk, writing random data to the media)
     secureErase          (Securely erase a disk or freespace on a volume)

     partitionDisk        ((re)Partition a disk, removing all volumes)
     resizeVolume         (Resize a volume, increasing or decreasing its size)
     splitPartition       (Split an existing partition into two or more)
     mergePartitions      (Combine two or more existing partitions into one)

     appleRAID <verb>     (Perform additional verbs related to AppleRAID)
     coreStorage <verb>   (Perform additional verbs related to CoreStorage)
     apfs <verb>          (Perform additional verbs related to APFS)

diskutil <verb> with no options will provide help on that verb

What kind of other Tool do I need

Here the Output of the Original Stick

Last login: Sat Jun 20 11:22:08 on console
iMac27:~ gerarddirks$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS iMac 27" Ex             999.2 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

/dev/disk1 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *4.0 GB     disk1
   1:                 DOS_FAT_32 ┐╔Êã»┤┼┼╠              4.0 GB     disk1s1

Where is documented that 16G is the maximum? If 16Gb is a Maximum then their is probably also a restriction of using USB3 Sticks?

I refuse to use Facebook as Information Source, sorry then no Forums Usage ;-)

I read also; https://github.com/Photonsters/anycubic … -issues.md
Their is only written FAT32 nothing about Max. 16Gb Size!

Gérard

I have a small issue with USB-Sticks for the Photon-S

The Original 4Gb Stick works fine. I suppose the original is an USB2 Stick

I want to have a stick with both 2 Connectors (USB-A & USB-C), because my main Computer has only USB-C Connectors. I got a Sandisk "Ultra Dual Drive Luxe" 32Gb and the USB-A Connector has a blue indication that it is USB3

I reformat the USB-Stick as FAT32

/dev/disk3 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *30.8 GB    disk3
   1:                 DOS_FAT_32 PHOTON-S                30.8 GB    disk3s1

When I insert it in a running Photon-S the LCD is blocked! When I switch the Photon-S Off & On, the Printer gives a Beep Tone which doesn't stop?

What is wrong?
- Doesn't the Photon-S doesn't Support 32Gb Size?
- Doesn't the Photon-S doesn't Support USB3 Size?

It is slightly difficult the get old fashioned USB-Stick with USB2 an small sizes (e.g. 4 or 8Gb). I want really an USB Stick with USBA for the 3D Printer and USB-C for my MacBook Pro. I don't want to use extra USB Docks!!!

Further I don't trust to reformat the original Drive. It has a very cryptic "Chinese Name" ?!? I don't want to lose the connection to my printer.

It looks that I am not the only person with such an issue;
https://www.reddit.com/r/AnycubicPhoton … ts_do_not/