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jlin @jlin.fosstodon.org.ap.brid.gy · 03/02/2026

First time really trying to use Blender, following the donut and coffee mug tutorial from blenderguru

Blender rendering of a blue coffee mug, a green (supposed to be pistachio flavour) donut, donut is on a plat. there is no table because I didn't want to make it lol

jlin @jlin.fosstodon.org.ap.brid.gy · 30/12/2025

A very janky 25 gbe setup. ethtool says it's up! but I haven't assigned ip address or done anything else yet. at least the physical layer is good!

linux ethtool partial output

Speed: 25000Mb/s
Lanes: 1
Duplex: Full
Auto-negotiation: on
Port: Direct Attach Copper
PHYAD: 0
Transceiver: internal
Supports Wake-on: d
Wake-on: d
Link detected: yes

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jlin @jlin.fosstodon.org.ap.brid.gy · 26/11/2025

From time to time these show up on the local FB marketplace: www.facebook.com/share/1BioneSrxg Kuka KR 350 6 axis robot arms, two available Condition Used - Good KUKA KR 350L280/2 – Heavy Payload Robots (Pair) Price: 15,000 for both Included: 2× KR […] [Original post on fosstodon.org]

2 Industrial KUKA robot arms on pallet in a factory. The arms are the traditional KUKA orange colour.

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jlin @jlin.fosstodon.org.ap.brid.gy · 25/11/2025

I changed the link to my Windows 11 PC to an RJ45 sfp+ 10gbp link (on the PC is a built in Marvell Aqtion 10gbps on the motherboard) - and I had some disappointment with iperf3 until I read that on windows, iperf3 needs a ton of threads via -P to max out the […] [Original post on fosstodon.org]

iperf3 -P 21 on windows 11, reports 9.29 Gbits/sec with 0 retry

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jlin @jlin.fosstodon.org.ap.brid.gy · 22/11/2025

Best damn wiring job I've ever seen. Puts my server room in Toronto to shame. Mare Nostrum 5 supercomputer, 14th on the Top500 2025 list #marenostrum5 #barcelonasupercomputingcenter www.bsc.es/marenostrum/marenostrum-5

Barcelona Supercomputing Centre - MareNostrum5 - showing storage nodes in server cabinets. Colour coded wiring - blue for Storage node, Red for computation node, yellow for networking (if I remember correctly)

MareNostrum5 supercomputer - server cabinets, cooling nodes, all arranged in rows and columns.

Super Large watercooling pipes and pumps. Colour coded, red probably means hot, green is the intake. Doesn't need "cool" water - just need a small differential to pull heat - so I think the loop is actually pretty hot (a little lower than cpu temp)

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jlin @jlin.fosstodon.org.ap.brid.gy · 19/11/2025

initial ifconfig and iperf3 to a 2.5 gbs connected desktop measured at 2.3 gbs. This is *so* worth it. Just being able to transfer files on desktop at full speed, while still watching videos, movies, via wifi on laptop without stuttering, and *still* have […] [Original post on fosstodon.org]

2 runs of iperf3 over a 2.5gb rj45 link, bitrate at around 2.3 gbps

ifconfig for mce1, connected at 10Gbase-SR full duplex with ip address

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jlin @jlin.fosstodon.org.ap.brid.gy · 19/11/2025

Phase 1 - got computer on 2.5 gbps.

Windows networking panel for Marvell AQtion 10gbit adapter wired to a 2.5Gbps port with link speed at 2500Mbps

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jlin @jlin.fosstodon.org.ap.brid.gy · 14/08/2025

Seen at #siggraph2025 Lumio 3D face scanner pretty cool stuff. I wasn't brave enough to stick my head into the scanner but it looks pretty futuristic.

Lumio 3d staff - bald asian dude grimacing hilariously, pointing to the 3d scanned and printed rubber mask also with the same expression that he's wearing on his belly. OK this reads impossibly ridiculous, but it's true! To the right I included a bit of the 3d scanner - a polygonal spheroid with millions of led lights meant to encase a person's head.

At Siggraph 2025, the lumio 3d face scanner - a volunteer is putting their upper body into the face scanner - millions of points of light in a polygonal spheroid meant to encase a person's head to scan it.

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jlin @jlin.fosstodon.org.ap.brid.gy · 10/02/2025

Met some fiddle heros! Beòlach from Cape Breton Nova Scotia. Wendy MacIsaac is one of my original fiddle heros, and Màiri Rankin just has an incredibly smooth tone. Mac Morin the keyboard player reminds me of another player, Calum MacKenzie, from the Bay […] [Original post on fosstodon.org]

Beòlach - Cape Breton Nova Scotia fiddle / piano / bagpipe (sans bagpipe this tour) supergroup - playing in Vancouver BC on their recent tour. Their music is part of the Canadian cultural landscape for 25 years and counting. (three people on stage, left to right, Mac Morin keyboard, Màiri Rankin fiddle, and Wendy MacIsaac fiddle)

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jlin @jlin.fosstodon.org.ap.brid.gy · 10/02/2025

So I'm pretty sure the issue is localised to the battery bay. it's either 1) the battery controller 2) the corrosion along the battery cables 3) the little backup battery that is on top of the battery bay (first time in history anyone is seeing this mini […] [Original post on fosstodon.org]

Disassembled camera parts. I hope I know how to put it back together!

Battery controller and battery spring contact, both corroded and not in good shape.

Mini battery that serves as standby battery for this camera. It's grey and a bit corroded? How do I replace it? it seems to be soldered on and I'm not sure what kind of battery it is. It's supposed to be a rechargable cell but I'm not sure exactly what specs it has.

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jlin @jlin.fosstodon.org.ap.brid.gy · 09/02/2025

Sunday activities: taking apart a camera that no longer powers on. I'm thinking there might be a blown fuse or a loose connection but I'll have to find it. #SilentSunday #photography #electronics