#garfield | Logs for 2016-08-21

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[00:09:47] <rue_shop4> zhanx, bit of math in the counteracting actuators
[00:10:05] <rue_shop4> actual air muscles are ... 1/9the the price
[00:10:17] <rue_shop4> for the actuator, but the valves are complex/expensive anyhow
[00:11:06] <zhanx-> Explain?
[00:11:42] <rue_shop4> loom muscles
[00:11:46] <rue_shop4> not cylinders
[00:12:19] <rue_shop4> http://www.imagesco.com/articles/airmuscle/fig2.jpg
[00:12:19] <zhanx-> Your mesh ones?
[00:12:32] <rue_shop4> I didn't invent them
[00:13:02] <rue_shop4> but I'm extending the loom beyond the expansion area for the anchors
[00:13:58] <zhanx-> http://www.scale4x4rc.org/forums/showthread.php?t=76378
[00:14:05] <zhanx-> But pvc per kat
[00:15:52] <rue_shop4> not cylinders tho...
[00:16:16] <zhanx-> here's one in pvc http://www.hive76.org/experiments-in-garden-hose-hydraulics
[00:17:40] <rue_shop4> ok but its not air mucles
[00:18:04] <rue_shop4> I think air muscles are actaully stronger
[00:18:13] <zhanx-> True a d maybe
[00:18:53] <rue_shop4> I have a pressrue/force chart somwhere
[00:19:08] <zhanx-> I can look that up
[00:19:47] <rue_shop4> https://materialdesigns.wordpress.com/2010/07/12/air-muscle-powering-robots/
[00:20:00] <rue_shop4> ; they can exert force 400 times their weight. Typical DC motors or pneumatic actuators can exert about 16 times their weight. T
[00:21:12] <rue_shop4> wow, air muscles are still growing in popularity
[00:22:02] <zhanx-> Yea, and weight is why I want them
[00:23:09] <zhanx-> I want lite and fast
[00:23:21] <zhanx-> 5 pounds max pickup weight
[00:23:57] <zhanx-> Still thinking about the end effector
[00:24:19] <rue_shop4> damn me and my lack of funding or budgets or time
[00:24:48] <rue_shop4> ok I'v decided to make the adc chip report all the channels all the time
[00:25:10] <rue_shop4> I need atleast 76800baud, not thats its asynchronous
[00:25:57] <rue_shop4> but I'm spi chaining 3 devices, so it needs to be capable of, hmm, well...
[00:26:25] <rue_shop4> 100000 bits/sec
[00:26:32] <rue_shop4> which isn't really high, so, hmm
[00:26:40] <rue_shop4> wait, 200k, I missed a *2
[00:27:15] <rue_shop4> grr, my controller is gonna be tied up recieving data
[00:31:02] <rue_shop4> what I need is someone to debate with that knows what I'm talking about
[00:32:54] <zhanx-> And right now not me
[00:34:35] <zhanx-> Rue still a freenode op?
[00:34:50] <rue_shop4> for robotics and uh... avr
[00:34:56] <rue_shop4> channel op
[00:34:58] <rue_shop4> words
[00:35:08] <zhanx-> K, messaged kline then
[00:35:30] <zhanx-> One of the channels I op the founders left and I am the last op
[00:35:54] <zhanx-> Been 6 months since last logins
[00:39:48] <rue_shop4> SWEET
[00:39:53] <rue_shop4> my code is working
[00:40:35] <rue_shop4> FF D7 FF FF FF FF FF FF FF 5F
[00:40:36] <rue_shop4> FF D7 FF FF FF FF FF FF FF 5F
[00:40:36] <rue_shop4> FF D7 FF FF FF FF FF FF FF 5F
[00:40:36] <rue_shop4> FF D7 FF FF FF FF FF FF FF 60
[00:40:36] <rue_shop4> FF D7 FF FF FF FF FF FF FF 60
[00:40:36] <rue_shop4> FF D7 FF FF FF FF FF FF FF 60
[00:40:38] <rue_shop4> FF D7 FF FF FF FF FF FF FF 60
[00:40:40] <rue_shop4> FF D7 FF FF FF FF FF FF FF 5F
[00:40:42] <rue_shop4> FF D7 FF FF FF FF FF FF FF 60
[00:40:44] <rue_shop4> FF D7 FF FF FF FF FF FF FF 5F
[00:40:46] <rue_shop4> FF D7 FF FF FF FF FF FF FF 60
[00:40:48] <rue_shop4> 10 channel adc stream
[01:24:11] <zhanx-> Ok rue follow rhis
[01:24:18] <zhanx-> Hit or miss engine
[01:24:34] <zhanx-> But air powered to move the arm on the track
[01:24:42] <zhanx-> Off center circle
[01:25:15] <rue_shop4> dont get off center
[13:06:37] <rue_house> zhanx, by which I meant, 'off centre'? what are you talking about?