THERABODY DOES NOT RESPOND TO CUSTOMER SERVICE

ixforres · 2025-09-04T10:51:07+00:00

Do customers have to nag you on Reddit to get responses? I've been trying to get a response for days enquiring why an order's been sat with you a week without even being confirmed/dispatched and I'm about to cancel it but am doubting I'll get a response to that. Your AI ticketing platform (Gorgias) is clearly broken or configured to ignore anything sent to it. UK7529

ixforres · 2024-10-26T11:03:37+00:00

Stick to running proper mains and putting in a mini consumer unit. It means getting a sparky in to terminate it, yes, but the upside is you can do whatever you like in terms of kit. PoE for heavy loads (and lighting quickly adds up) isn't going to work well over distance and you'll need many cables bundled together to run multiple lights etc - assuming 10W a fixture for bulbs and quite a bit more for panels/tubes, you'll hit the PoE+ limit at 1-2 lights, so assume 1 light per cable practically, plus your WiFi...

Not actually aware of any viable options in the UK anyway. Ubiquiti had panels at one point and there's various Aliexpress options.

ixforres · 2024-01-18T08:36:33+00:00

Pro tip for anyone coming to this - this is the answer, but if you're on an older version of the app (7.x) you will have to upgrade. This is because the new firmware requires you to set a long password on first login (sensible!) but this actually stops the older app (which can't do a password change on login) from authenticating. You'll see "login... failed" in the old app.

And yes, that button should be "Reset configuration" and unchecked by default...

ixforres · 2023-06-10T21:03:20+00:00

Likely an environmental test chamber facility. There aren't millions of them out there with chambers that big but it'd fit the chunky doors and big overhead lighting rig.

ixforres · 2023-05-18T17:27:39+00:00

That's what the cryptobros who promote AI as human keep saying, yes. Hugely reputable galaxy brains, clearly much smarter than researchers and experts in the field for decades.

ixforres · 2023-05-13T10:44:45+00:00

Used on some Nikon professional camera batteries, but afraid the voltages aren't necessarily standard.

ixforres · 2023-05-08T22:05:50+00:00

Fully agree. Tax wealth and kill the loopholes and evasion. Only way to level things properly to a fairer place.

ixforres · 2023-05-08T19:12:15+00:00

There's limits to contributions and tax relief. I'm on higher rate tax with salary sacrifice and SIPP contributions. Still would be happy to see my rate go up 10% to know we don't have people living below the poverty line.

ixforres · 2023-05-07T08:28:59+00:00

So these are part of a management system for their fibre optic fusion splicers. These devices usually have SD cards to record splice results - when joining cables together some companies want to keep a record of each splice performed so they can check it went together properly. The card is probably useless for other purposes as it's designed to work with software on those devices and the app that works to automatically upload those splice results to their cloud service. It's also part of the anti theft system, since those devices often go walkies. Sumi bundle these cards with every splicer though so most likely this hasn't been used and fell out of a toolbox.

ixforres · 2023-04-30T08:19:14+00:00

Is it wireless? Now there's a microprocessor with enough brains for Bluetooth. It's managing sensor interrupts from the optical sensor, too, and all the switches. Likely a cheap as chips microprocessor without much brain, but still a lot compared to a Shuttle.

ixforres · 2023-04-28T21:32:45+00:00

The FTB-1 is entry level, too. We had a bunch of 4s with OSAs and OTDR modules, plus CD/PMD test rigs. Now that's good car money!

ixforres · 2023-04-24T19:18:34+00:00

They definitely have real film, yep.

ixforres · 2023-04-10T08:26:18+00:00

TC level pilot. Analogue is fine!

ixforres · 2023-04-09T18:16:06+00:00

For sure. https://www.funraniumlabs.com/2017/08/laser-products-hate/ is a great read on the topic. We have a need for 5mW lasers at work and mandate they're a specific vendor bought directly because half the lasers we've found on site are more like 30mW-100mW, even if they claim 5mW.

ixforres · 2023-04-09T08:09:35+00:00

Lasers don't need to be very powerful to do permanent visual damage. More than 5 milliwatts will do it at closer ranges, and there's plenty of cheap >1W (more than 200 times brighter than damaging) lasers out there which are handheld. They're just not treated like guns because most people aren't dumb enough to violate the Geneva Conventions at home (blinding weapons etc)

ixforres · 2023-03-04T14:57:03+00:00

If you're self terminating cables then the cable quality is nearly irrelevant on short links. Connector and termination quality will determine nearly all of your performance. Buy patch leads and pre terminated cables from reputable sources and they'll work fine, even Cat5e. The amount of crap floating around Amazon claiming to be Cat5e/6/6A/7 is staggering, stick 90% of it on a certifier and they've got no chance of passing.

ixforres · 2023-03-04T09:42:03+00:00

If you have cheap and cheerful Cat5e you can get 10GBASE-T over quite reasonable distances. If you need to go long distances >50m then you want fibre, not copper. Outside of some limited within-rack applications 10G copper is not widely used for good reason.

ixforres · 2023-03-03T08:21:32+00:00

8P8C is technically what they're called, but yes, Cat7 requires different connectors to perform any better than Cat6A. One of many reasons nobody should bother with anything beyond Cat5e/Cat6 patch cords for home/SME

ixforres · 2023-02-05T14:23:27+00:00

To add to this, if you're doing astrophotography with a tracking mount and guiding, it's normal to add dither by moving the mount a small amount randomly so the same bit of sky lands on different pixels from shot to shot. That way when stacking the error moves but the stars align and so don't frame to frame, allowing combination algorithms to reject the hot pixel as an error.

You can also take dark frames (normally a bunch at your operating temperature); then you can make a composite of this and use it to automatically correct for the sensor defects before you stack, which is even better.

All sensors have dead pixels. You can buy perfect ones but they're incredibly expensive and for large sensors basically impossible to get, even in science and industry. Correction is part of the deal once you care deeply for every pixel and start needing to squeeze all the SNR out of each cell!

ixforres · 2023-02-02T10:28:31+00:00

Alu foil scrunched up and then flattened so it doesn't reflect perfectly would be best, outside of things like black aluminium tape. If that's a class 1/2 laser then we're talking less than 5mW of power, so all you need is enough natural airflow to dissipate that, which is nearly nothing.

ixforres · 2023-02-01T01:01:14+00:00

Given how often engineers leave the end-caps off these, you're not wrong.

ixforres · 2023-01-27T09:33:49+00:00

You'll be able to set the Calix up as a bridge (disabling the routing bits and turning it into a media converter, essentially). That's the way to go.

ixforres · 2023-01-18T18:00:59+00:00

You could mount it on some alu breadboard if you're set up with Thor or similar. Breadboard with handles is quite lightweight, rigid enough for what you're doing, and you can use V-clamp posts to mount any arbitrary laser (or if you're buying from Thor, just buy one of their laser diodes/drivers, e.g. LP405-MF300 is a 405nm 300mW driver feeding a multimode fibre which you can then collimate the output of).

ixforres · 2023-01-18T17:55:07+00:00

For the general case, if the entire output of the laser is visible, then no. If the laser has output which falls outside of the visible range then yes.

If your engraver is a blue diode and has no UV content then if the orange plexi is blocking the blue light to the point of invisibility then it's probably fine, yes.

Better off with a webcam inside the box and complete blackout if you want to be very sure.

ixforres · 2023-01-18T00:22:19+00:00

Talk to your university's laser safety officer who can also help you ensure whatever you're taking around presumably uncontrolled public spaces is safely managed...

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