By Anuj Deshpande in Weekly — Nov 10, 2024

Weekly #13

Lucky number 13! This week we talk about Chinese low-cost CNC machining, violence fans,

Links

Monu posted a link to https://pamir.ai/ - wondering if anyone has tried it out yet?
Chinmay posted a link to how captured Russian drones show that they are full of western parts - do sanctions really work?
Neon gas and phosphor coatings for making some pretty lights - Chinmay posted the link, and Anool figured what materials they are using from the comments
Raspberry Pi launched their very own powered (or not) USB 3 hub
Low level PWM support is coming to the Pi!
Dhiru posted a link to a great post about return currents
Discussion around the "violent fan"
- loads of twitter discussion around cheap Chinese CNC manufacturing needed for such products
- I ranted about how governments should give people 5-axis CNC machines instead of handouts
- Portronics has Tez which is similar. I have ordered that and will post pictures next week
- Some twitter threads about how they might be manufacturing this with a CNC
- Kali thinks the cost is unrealistic, and JT has thoughts on how they must have optimized the costs

Shekhar is in the market for a 4-band FM receiver, and we discussed RTL-SDR as a DIY option
Syed is looking for a third payload for the model rocket they are flying on 25th December
Kali is wondering how to figure out if old 18650 cells still have any juice in them, given they show a decent voltage.
- Some of Ravi's old camera NiMH batteries would show a similar false reading
Anool and me are looking at telegram bots or something similar to enforce some community rules - have any experience with those?

Anool is hanging out at the HackPGH Makerspace for the last few days, and he sent some photos over