August 2021 - Libresilicon-developers

Libresilicon infrastructure down
by Ferenc Éger 10 Aug '21

10 Aug '21

Hello David, Sorry for the spam. It seems that Libresilicon infrastructure is down. All machines in 62.192.20.131-136 are unresponsive and unpingable. Also, I get "Nameserver c.ns.buddyns.com. reports: No such host dns.lanceville.cn". Regards, Ferenc

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Announcement - Mumble session on Sunday 2021-08-08 @ 18:00 UTC
by Hagen SANKOWSKI 09 Aug '21

09 Aug '21

Hello List! This is our weekly announcement for the next Mumble Sessions on Sunday 2021-08-08 @ 18:00 UTC. Please join us as usual at our Mumble Server murmur.libresilicon.com at Port 64738, the Channel is IC. We like to follow-up our topics from mumble sessions before. Regards, Hagen.

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Precision leadscrews
by David Lanzendörfer 03 Aug '21

03 Aug '21

Hello everyone So I've been checking for affordable precision leadscrews for positioning the table and came across this web shop here: https://shop.mitutoyo.eu/web/mitutoyo/en/mitutoyo/01.02.07.04/ Precision%20Lead%20Screw/$catalogue/mitutoyoData/PR/04AZA161/index.xhtml What do you think? -- (\__/) (='.'=) This is Ninja Bunny. (")_(") Copy and paste Bunny into your signature to help him gain world domination

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Maskless lithography
by David Lanzendörfer 02 Aug '21

02 Aug '21

Howdy So I came across those two components which can solve our positioning problem with the wafer: Those LEDs produce a light within the spectrum we need in order to shine through silicon (1000nm ~ 1400nm): https://tech-led.com/en/product/ir-nir-leds/ The OV5647 is sensible up to at least 1000 nm and is quite affordable: https://cdn.sparkfun.com/datasheets/Dev/RaspberryPi/ov5647_full.pdf There are OV5647 imaging modules available for Raspberry Pi. I'll try to contact Marubemi directly and ask them for a quotation on their NIR/IR LEDs in the wavelength range we require and while I'm on it, I'll also check with them for a potentially more suitable CMOS sensor, then I'll compare the prices. As I've discussed with Dilek, the goal is to produce an affordable stepper suitable for hobbyists and small labs with limited budget. Cheers David -- (\__/) (='.'=) This is Ninja Bunny. (")_(") Copy and paste Bunny into your signature to help him gain world domination

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Announcement - Mumble session on Sunday 2021-08-01 @ 18:00 UTC
by Hagen SANKOWSKI 01 Aug '21

01 Aug '21

Hello List! This is our weekly announcement for the next Mumble Sessions on Sunday 2021-08-01 @ 18:00 UTC. Please join us as usual at our Mumble Server murmur.libresilicon.com at Port 64738, the Channel is IC. We like to follow-up our topics from mumble sessions before. Regards, Hagen.

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