In very large quantities, that is a great way to optimize rigidity and cost. The less connections the better. Imagine some extruded LR4 beams…
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I’ve wondered on something like the Qidi Plus 4 could you print out a monolithic frame to build a CNC on . Similar to a cast aluminium idea chassis idea.
Like a Makera style mpCNC with low part count.
That is what has been happening with the printers speeding up. The first MPCNC core was 6-8 parts? The LR4 core is 1.
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Can’t do squares, takes too many bearings and it gets real hard to balance the tension and not get rocking. 3 points of contact is much easier to manage than 4.
Now that I say that. I have an idea.
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Three instead of 2? 
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Actually…I might have an idea. Shooot. Are there international standards for box section?
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Would be Neat to stick a router on this and flip it over!
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You’re getting really close to looking at v-groove extrusion.
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There are imperial and metric ones. But the rest is pretty standard. 100x80x4 or sth like that, imperial is different but also fixed.
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Guy reverse engineered everything about his Spyware Vacuum cleaner:
Just a heads up for you guys. Finally a confirmation what I said from the start.
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I’m a developper by trade and I’m all for open/self-hosted solutions, but I think the title is a bit misleading
This article is not about a vacuum “spying” on the owner, it’s “just” a “vendor kill switch” that’s been discovered by the customer
It doesn’t make this any more acceptable, a device you paid for shouldn’tbe able being desactivated by the vendor (either by the vendor decision or simple stop of the servers)
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Sending map data is not spying?
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And sending your wifi credentials back to the manufacturer, what’s the legitimate purpose of that?
You say they discovered like it was a an unused quirk of code
The device was disabled remotely because it was blocked from sending data back to the manufacturer.
I wonder how many other consumer devices are deliberately disabled, either remotely or on a timer.
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Personally, if I was selling robots, I’d make sure there was a kill switch incase some major safety recall class situation needed to be addressed ASAP. But would also be 100% transparent about such policies. Send clear email/sms notifications for such events. Data gathered for valid product improvements should be transparent, clear, and fully audited to track data access/use within the company. Strip personally identifiable information (PII), etc…
Silently sending wifi creds to cloud isn’t cool. But does seem to be increasingly common as devices try to be convenient… e.g amzn know my wifi pwd even if I don’t.
No idea if the article author is over hyping, I didn’t dig too deep. So I don’t know if the company is maliciously spying, and/or, incompetent insensitive engineering 
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It’s a vacuum!! What’s it gonna do, start blasting those hidden flamethrowers? 
With the first vacuum robots I told my friends I am 100% sure that every map that they make is sent directly to China. In case of the next invasion, they don’t only have google maps for every location of every house, but every floorplan and whatnot. Yes, we can share the tinfoil hat…
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Anything’s possible with software 
http://google.com/search?q=software+bug+causes+consumer+device+overheat+fire
But DJI have the world mapped anyway (with the approval of aviation and military authorities!).
Don’t get me started on supermarkets with face recognition tracking individual buying habits!
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Sending an “overheat” signal to every wifi device in a given locality would be a neat way of flattening a suburb without having to worry about “enemy” defences! 
Where’s your smart home now?
Thanks, we might need it!
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