Did someone post her lcd shutter flasher top here? because i've seen that before but don't remember from where.

In my posting history somewhere also in reddit cyberpunk thread:

http://sensibleendowment.com/entry.php/6639

Yeah, she pops up pretty regularly. Personally, I'm more of a Lady Adda fan. The whole hyper-sexualized, attention seeking thing SexyCyborg does is kind of annoying. But I do admire her tech skills and creativity.

I've been watching some of her product vids on adafruit, she's good at explaining shit. Like SexyCyborg, she has also been one of the factors that made me realize I've been out of the electronics game for too long. I forgot how fun hardware could be. Previous employment sapped the life out of that love like it did for computers.

Yes, she is good. I also really enjoy Collin Cunningham's videos, for explaining basic principles and technologies. Addafruit must be a pretty amazing place to work.

Another guy I've learned a lot from is Big Clive, up in Glasgow. He's a lighting engineer, so many of his tear-downs and mods are lighting related, but I've learned an awful lot about general circuit design from him.

Hey midden Didn't you say you welded? I might need to pick your brain. Your entire brain.

I weld, but I don't claim to be a Welder. I'll be happy to help, but take anything I say as semi-informed at best.

Any Mig welding tips? My welds are shit (but I'm just fucking around at the moment on scrap mild.) My welds look black (granted I'm not cleaning the steel yet- waiting on the wire brush parts to arrive)

I have a Hobart Co2/Argon gas mix with .024 solid core.
(I'm not sure my gas is coming out. Should I totally be able to hear it?)
The gas is set to just under 20 CFH.
Spooling tightness set to 3.
The settings have been between 4 feed and 55amp
3 feed/55 amp
3 feed and 40 amps...
I've burned through the steel at 60 so I'm not worried about penetration potential.

So I'm guessing the contaminants from not cleaning the working surface and possibly no shielding gas? The scrap metal I'm using is a touch under 1/16th thick.

Also I just realized I can adjust the brightness on my helmet so I can actually see where I'm welding. Ha!!

Here are the shit welds:
https://imgur.com/a/86p4Z

Ouch. Yeah, looks like you're having some issues. From all the soot I'm guessing you are not getting good gas flow, plus it looks like you are either moving too fast (plus wire feed too fast) or holding the electrode too far from the surface. You might also have the wire sticking too far out. No, you probably shouldn't hear the gas, unless you are doing a pretty massive weld with a very high flow rate.

It looks like you're not letting the base metal form a puddle. You want to see a little pool of liquid right below the tip of the electrode. You want it to be almost like you are gently nudging that little puddle of liquid along with the plasma arc. The tip should almost touch the puddle, as in 1/16" or less space. Don't worry about having the electrode stick to the work now and then while you getting used to it. I tend to use either little circular or U shaped movements to keep the puddle maybe 1/4"-3/8" in diameter.

Once you get good (I'm not there, yet) you can go really fast with MIG. I still move about as fast as if I'm stick welding or oxy/acetylene welding. Because of that, I use lower power and slower wire feed than a professional would. That's what I recommend: first just focus on getting a nice puddle with the minimum power and feed rate. As you get more comfortable, you can turn up the power, move faster, and still have control of the puddle. When you do that, you'll also need to increase the feed rate on the wire to get a nice fill.

The down side of going low and slow is that more heat builds up and increases potential for warping. I tend to go a bit overboard with my tacking. A pro MIG welder can tack a few spots then lay down a perfect bead before the metal even knows what's happening.

Check out this guy; he's really good. Down and Dirty MIG welding tips:
https://www.youtube.com/watch?v=H3Qb9I03FCk

A nice series he did on getting started with MIG:
https://www.youtube.com/watch?v=5KrwmK7df-s&list=PLp0pALmMwc6v2ScmEGbvNSpNKcYA8GiGA

The whole series is maybe two hours long and will get you well on you way. Even just the first three or four 15 minute segments should be tremendously helpful.

Good luck!

Sounds like I am definitely holding the electrode too far away and running the wire too fast. I'll try working on the puddles and watching the videos to get the timing down. Thank you so much!

I think Collin was mostly in the background of the couple product videos I watched, so I didn't spare him much thought . I'll have to check out his vids. Lord knows I could use the refresher. Thanks for the recommendations! :D

Lol, I like the Tree of Life she's got on the frontpage of her website. Insightful.

Just a quick thought but don't make-up palette's usually have a mirror not a giant screen. If you wanted to hide it make those glasses useful and polarize them to the "mirror" so that the mirror surface becomes see through while you have said glasses on.

Anyway niffty idea and hot Asian lady :D

I think some of these phones have a mirror-screen mode. Not sure is the blackberry or whatever she is using does.

Love her, she's got that autodidactic streak that raises the bar of her potential pretty high. I'm always looking forward to what she's going to do next. Plus, it's a great glimpse into the ShenZhen "maker culture."

SE Shenzhen: The Silicon Valley of Hardware post:

http://sensibleendowment.com/entry.php/7061

Watched it, commented on it. Also noticed she commented on it over on an imgur post. Said there isn't really a maker culture. Hence my quotes. I may bug her one of these days and see if I can pick her brain on what's up over there.

She's really nice. Gave me some advice about the flight sim.

Which btw has been a trial not bugging you for status updates daily ;)

I'm stuck between milling and welding caster wheels or finding a way to install a "Flange Block Mounted Bearing" but I don't know how much support the rod can hold before bending...

So I'm going to be stuck awhile while I practice mig welding and research parts so I picked up a mini-project: a two player raspberry pie arcade table with joysticks controlled by andrunos.

Word. I'm probably going to get into arduino stuff soon. I'd really like my next project to be a multichannel EEG but considering I no longer have much in the way of equipment and I never really learned to solder, I'll probably start with something smaller like a heart rate monitor or positionally tracked input wand. Something that I can tie into the VR stuff. I've got that roadmap in my head. So I'm trying to stay on top of it. Since I can't get ahead of it :P

I've been spending a lot of time on python lately. I don't know if you remember that Automate the Boring Stuff with Python link I shared on facebook about a year ago, but it showed up in my 'On This Day' posts and I decided to try my hand at a few projects I've been needing to get done. Also, I finally got a chrome extension written that I've been putting off for two years. Think I'm finally comfortable enough with javascript to be useful thanks to the SE2 beta work. :D

I think I might have that book. Python has been by far one of my favorite languages and I fee like it's pretty similar to R.

I can do a hack job of sodering but I've never gotten good at it.

I've spent at least one paycheck building up shop for this project because of the great betrayal of '89 but tools are back in the shop- well the shitty Chinese equivalents but function over form for now.

R is on the list. I think I've get a coursera class somewhere that requires it.

I'v been spending a lot of time browsing aliexpress and ebay. Haven't bought anything yet, but I'm surprised at how cheap some of the arduino stuff is. Looking forward to playing around after the holidays.

If you want I have a dataset and a paper I turned in from from reddit/r/randomactsofpizza
I can give you my course homework if you want. Some of it has the functions etc

Thank you. I may bug you for it later. It's not a priority right now. I'm kind of a digital hoarder so I need to focus on what I'm doing for the time being ;)

I recommend you do what you need to focus on. Just keep in mind standord spark has good data sets but R can be limited in size it can run and it's not the best platform to clean data.

Also does anyone know anything about pneumatics?!

I mean, I hear ain't nothing wrong with a little pump and grind ;)

r/AskAnEngineer/?