Author Topic: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable  (Read 1156 times)

tesla500

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SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« on: March 25, 2020, 03:13:49 PM »
This is an SSD holder for the Chronos 1.4 and 2.1-HD. This accessory is invaluable when shooting DNG on the go; save speed is vastly improved compared to an SD card. The camera can write about 60MB/s to a SATA SSD instead of ~12MB/s to most SD cards. DNG saves at about 12FPS on the 2.1-HD and about 18FPS on the 1.4, at full resolution.



We plan to offer this for sale in our store eventually, but you can 3D print one right now! The attached models have been updated from the pictures shown, the SD card opening was widened so you can easily grab an SD card with your fingers instead of needing pliers to remove it.

We're in the process of ordering custom versions of the eSATAp cables that have a short cable length to avoid the need to coil up the extra cable.


Items you'll need



3D Printer to print the SSD cage (see attached files)

3D Print Instructions
This file has been tested on the Makerbot Replicator 2X
Recommended settings:
Print with raft, raft expansion 12mm
Print with supports
Orient the part with the drive opening pointing straight up

We've been using these at Krontech for the last few months and these mounts are incredibly useful, let us know how they work for you! One modification we were thinking about is centering the SSD above the camera. Currently, it overhangs the screen and makes it harder to see if you're looking from an upward angle. Thoughts?
« Last Edit: March 25, 2020, 03:22:44 PM by tesla500 »

SergeyKashin

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #1 on: March 25, 2020, 05:04:29 PM »
You can use the m2 SSD on the top of the camera and they may not cover the screen

tesla500

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #2 on: March 25, 2020, 05:26:11 PM »
You can use the m2 SSD on the top of the camera and they may not cover the screen

Good idea, did you make a setup using one of these?

SergeyKashin

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« Last Edit: March 25, 2020, 06:28:46 PM by SergeyKashin »

SergeyKashin

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #4 on: March 31, 2020, 03:40:18 PM »
This is an SSD holder for the Chronos 1.4 and 2.1-HD. This accessory is invaluable when shooting DNG on the go; save speed is vastly improved compared to an SD card. The camera can write about 60MB/s to a SATA SSD instead of ~12MB/s to most SD cards. DNG saves at about 12FPS on the 2.1-HD and about 18FPS on the 1.4, at full resolution.

What is the maximum speed of the SATA connector? And in General, all the connectors through which you can write files, how can you find out their maximum recording speed? USB, SDcard.
camera 2.1

Or is it the maximum write speed of 12 MB / sec, regardless of the speed that the SD card can write
« Last Edit: March 31, 2020, 03:42:33 PM by SergeyKashin »

Nikon1

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #5 on: April 01, 2020, 07:23:41 AM »
This is an SSD holder for the Chronos 1.4 and 2.1-HD. This accessory is invaluable when shooting DNG on the go; save speed is vastly improved compared to an SD card. The camera can write about 60MB/s to a SATA SSD instead of ~12MB/s to most SD cards. DNG saves at about 12FPS on the 2.1-HD and about 18FPS on the 1.4, at full resolution.

What is the maximum speed of the SATA connector? And in General, all the connectors through which you can write files, how can you find out their maximum recording speed? USB, SDcard.
camera 2.1

Or is it the maximum write speed of 12 MB / sec, regardless of the speed that the SD card can write
Not Quite sure, but i think its more of an internal Limit bevore you will hit the Limits of the SD-Cards or SSDs (There are sure some Pretty slow and old SD-Cards or drives that will limit Write Speed, but i am not talking about that...). At Least, if you have an reasonable fast Card or Drive, i would expect the Bottleneck to be more inside the Camera in Reading out The Data from RAM/ Compressing / Computing /Whatever happens else to the Sensor data inside the Camera.

SergeyKashin

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #6 on: April 01, 2020, 08:33:04 AM »
This is an SSD holder for the Chronos 1.4 and 2.1-HD. This accessory is invaluable when shooting DNG on the go; save speed is vastly improved compared to an SD card. The camera can write about 60MB/s to a SATA SSD instead of ~12MB/s to most SD cards. DNG saves at about 12FPS on the 2.1-HD and about 18FPS on the 1.4, at full resolution.

What is the maximum speed of the SATA connector? And in General, all the connectors through which you can write files, how can you find out their maximum recording speed? USB, SDcard.
camera 2.1

Or is it the maximum write speed of 12 MB / sec, regardless of the speed that the SD card can write
Not Quite sure, but i think its more of an internal Limit bevore you will hit the Limits of the SD-Cards or SSDs (There are sure some Pretty slow and old SD-Cards or drives that will limit Write Speed, but i am not talking about that...). At Least, if you have an reasonable fast Card or Drive, i would expect the Bottleneck to be more inside the Camera in Reading out The Data from RAM/ Compressing / Computing /Whatever happens else to the Sensor data inside the Camera.

My SDcard 95mb and 300mb

foobar

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #7 on: April 01, 2020, 09:05:15 AM »
This is an SSD holder for the Chronos 1.4 and 2.1-HD. This accessory is invaluable when shooting DNG on the go; save speed is vastly improved compared to an SD card. The camera can write about 60MB/s to a SATA SSD instead of ~12MB/s to most SD cards. DNG saves at about 12FPS on the 2.1-HD and about 18FPS on the 1.4, at full resolution.

What is the maximum speed of the SATA connector? And in General, all the connectors through which you can write files, how can you find out their maximum recording speed? USB, SDcard.
camera 2.1

Or is it the maximum write speed of 12 MB / sec, regardless of the speed that the SD card can write

According to the SD card specs, we should theoretically be able to achieve 24MB/s on the Chronos 1.4/2.1, but in practice I have never seen any card exceed 10MB/s.

The vendor for our CPU quotes an ideal throughput of a little over 100MB/s for the write speed of the SATA port, but when dealing with filesystem access patterns and overhead we are more likely to see the performance of the SATA interface top out at a little closer to 60MB/s.

Martin

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #8 on: April 01, 2020, 11:16:33 AM »
Hi,

I did some tests a while ago:

http://forum.krontech.ca/index.php?topic=442.msg2307#msg2307

I guess SATA speeds with very fast random access SSD drives will be even better performing!

All the best
M.

NiNeff

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #9 on: June 27, 2020, 08:53:09 AM »
I finally found the time to also print this SSD holder. I forgot to add supports for the print, but my printer handled it very well even without them.
I did some very quick tests an the SSD is about twice as fast as the SD card when saving DNG files, MP4 is about the same. Currently I have it formatted to FAT32, maybe I'll "upgrade" the filesystem to EXT3 or even EXT4 and see how it does then.
However reading EXT formatted Devices from Windows sucks :D


EDIT: I just saw the mounting-holes for the m2x10 screws, what are they for? As far as I can tell the holder works perfectly fine without those screws in there...
« Last Edit: June 27, 2020, 08:57:00 AM by NiNeff »

CircleOfConfusion

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #10 on: August 07, 2020, 02:11:55 PM »
I finally found the time to also print this SSD holder. I forgot to add supports for the print, but my printer handled it very well even without them.
I did some very quick tests an the SSD is about twice as fast as the SD card when saving DNG files, MP4 is about the same. Currently I have it formatted to FAT32, maybe I'll "upgrade" the filesystem to EXT3 or even EXT4 and see how it does then.
However reading EXT formatted Devices from Windows sucks :D


EDIT: I just saw the mounting-holes for the m2x10 screws, what are they for? As far as I can tell the holder works perfectly fine without those screws in there...

The m2 screws are to secure the SATA cable in the SSD holder to prevent it from moving/shifting when connected to the SSD.

NiNeff

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Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable
« Reply #11 on: August 08, 2020, 12:33:05 AM »
The m2 screws are to secure the SATA cable in the SSD holder to prevent it from moving/shifting when connected to the SSD.
Ah, thanks! I personally don't need those as the disc and cable are relatively tight in there already, but good to know.