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Did my favorite search query, and the result were pretty bad, as expected: "robotics servo motors with two-directional control for under $100" 1. https://mjbo
by theamk 1y ago
Did my favorite search query, and the result were pretty bad, as expected:
"robotics servo motors with two-directional control for under $100"
1. https://mjbots.com/ https://mjbots.com/ - their motor are $1369. FAIL.
2. https://www.pololu.com/ https://www.pololu.com/ - this is huge store, but they do have some motors like that. Pass, but wish it linked to specific page and not top top-level one.
3. dh-robotics.com - no prices, but some products on open market are few K$. Likely fail as well.
4. https://www.robotarticulation.com/ https://www.robotarticulation.com/ - The product is not for sale (early beta), and it looks likely much more than $1K. FAIL.
5. https://www.lynxmotion.com/ https://www.lynxmotion.com/ - another huge store, most two-directional motors are expensive but there are some under $100... Pass, but wish it linked to specific page and not top top-level one.
- 85392_school 1y agoIt sounds like they have yet to focus on products yet. Loosely quoting https://news.ycombinator.com/item?id=43907634 https://news.ycombinator.com/item?id=43907634: > So the search should work best for people, companies, papers, high quality written content. > Types of searches Websets doesn't currently do well at: products, content that requires authentication/permissions to access, and non-English content
- gertlex 1y agoCurious: what is an example of a robotics servo motor with one-directional control? My experience around such started with pwm hobby servos, includes dynamixels, and I've worked with larger stuff using harmonic drive gearboxes. Can't recall encountering a "servo" that is one-directional.
- theamk 1y agoPWM-controlled hobby servo (1-2mS pulse evert 20mS or so) is the one-directional control I had in mind. When you are under $100 range a surprising number of servos use the same simple 1-wire protocol, even large-ish 150 kg-cm / 100W units. Dynamixels are two-way, and they are an exact thing I'd wanted to see in search results.
- gertlex 1y agoAhh, you seem to be referring to two-directional (two-way) communication, and I took it to mean rotational direction. Was imagining servos analogous to devices that simply power a motor in on/off states, so can't reverse.