Does memory card read/write speed make a difference?

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AnthonyM
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Does memory card read/write speed make a difference?

Post by AnthonyM » Wed Apr 03, 2019 7:41 am

Hi,
Just wanted to know if anyone has any experience with high performance memory cards used with a Faro Focus laser scanner. The memory card that came with the scanner is an old discontinued model from what I can tell with quite a low read/write speed. Would using a card with say 300MB/s write speed make a difference in scanning time compared to the card that came with the scanner? Thanks!

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Re: Does memory card read/write speed make a difference?

Post by landmeterbeuckx » Wed Apr 03, 2019 10:37 am

i scan with a trimble tx5 (focus 120). I use different 'transcend' 30MB/s 32GB sd-cards without any problem.
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Re: Does memory card read/write speed make a difference?

Post by sim.herrod » Wed Apr 03, 2019 12:30 pm

AnthonyM wrote:
Wed Apr 03, 2019 7:41 am
Hi,
Just wanted to know if anyone has any experience with high performance memory cards used with a Faro Focus laser scanner. The memory card that came with the scanner is an old discontinued model from what I can tell with quite a low read/write speed. Would using a card with say 300MB/s write speed make a difference in scanning time compared to the card that came with the scanner? Thanks!
Exactly the situation we've just been through with an S150.

We bought a SanDisk Extreme PRO 32 GB SDHC.
https://www.amazon.co.uk/gp/product/B01 ... UTF8&th=1

Haven't noticed a difference in scanning time, but certainly a difference in getting the data off the card.

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Re: Does memory card read/write speed make a difference?

Post by tbwester » Wed Apr 03, 2019 8:28 pm

huge difference.

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Re: Does memory card read/write speed make a difference?

Post by sheartab » Wed Apr 03, 2019 10:49 pm

I use 64gb class 10 cards (633x - 95mb/sec). I have one card that is 32gb class 10 (200x - 30mb/sec) and I notice a big difference in scan write speed.

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Re: Does memory card read/write speed make a difference?

Post by mikajahkola » Tue Apr 16, 2019 9:09 am

I have been using various 16Gb and 32GB cards and I have not seen significant differences between cards.
However, when there is a large number of scans on a card (several hundred), the scanner will be waiting longer and longer at the end of each scan before it signals ready. Sometimes I have had to switch to a new SD card although the old one was only half-full, because of an annoying lag at the end of each scan. This seems not to be related to the data volume per se but the number of scans. I suspect it is a file system issue. You will also experience a very long lag if you try to browse the scans and there are several hundred of them on the card. My scanner is an M70 and the memory cards are always formatted by the scanner.

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