Archive for May, 2019

Bad Broadcom, bad, bad!

Posted in ODROID vs RaspingBreathburry, RaspingBreathburryDOodlePi, Sucky Wucky RaspingBreathBurry on May 20, 2019 by asteriondaedalus
Bad Bad Broadcom

So, with antitrust investigations, including accusations of monopoly practices by Broadcom, does anyone remember ODROID-W?

I do.

The rants in the Raspingdoodleberry Pi community about ODROID cheating, even though RPi comes under Creative Commons were interesting.

The gotcha appeared to be the documentation was Creative Commons (CC), even the design documentation, but building hardware based upon the design documents was not (apparently) acceptable to some.

The notion of opensource hardware appears, in fact, to be PCB level and not schematic level. So, without specific restrictions in place, building a PCB from the supplied schematic is a remix, in tune with the CC offered by the rasping lot.

So, the idea that can remix the schematic design, as you may or may not have had to to come up with ODROID-W, but you can’t build hardware from that schematic to get remixed PCB design is curious? What is the point then of that CC?

The variant of CC applied by The Rasping (is that a better jibe) should have been Non-Commercial, No Derivatives. Since The Rasping did NOT apply that restriction THEN all the bleating by members of The Rasping was unkempt, uncalled for and The Rasping should have culled the conversation and educated its members. In fact, it may draw attention by any investigation into Broadcom, since the banter was likely monopolistic in intent, especially where Broadcom employees joined in the discussion on The Rasping.

All the gaff about using the poor Raspingdoodleberry software developers efforts, when the software was offered opensource! Suck it up Princesses. You only asked for attribution. You got it.

So, is this just monopolising by Raspberry Pi community? How connected is that practice with accusations about Broadcom practices?

The more interesting thing is, apart from potty talk from the Raspingdoodlebury community, there appeared no other action directly on their part. The action on behalf of the Raspingdoodlebury Pi was apparently taken by Broadcom (according to some viewpoints).

Its hard to unpick the Broadcom/Raspberry Pi think.

Interesting, all very interesting.

I wonder how broadly the investigation into Broadcom, and monopoly practices, will look?

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Not bad

Posted in 3D Printing, Robotics on May 4, 2019 by asteriondaedalus

So, I did a print of the wheel hub. It turned out I tight fit. Too tight to insert the motor without having to sand the inner surface of the collar that will hug the outrunner.

I snuck back into the model to shave a tad off for the next print. The collar will help fit the wheel square onto the outrunner to prevent wobbling.

Balancing Act

Posted in 3D Printing, AI, Hardware, Robotics on May 4, 2019 by asteriondaedalus

So, I have printed the carcass of a 3d printed balancing robot.

I bought two gimbal motors.

I have my pesky gimbal controller from my lidar experiments.

Go figure, you can buy rock crawler tires for my old Venom Creeper for $5 a pair, so I opted for an indoor/outdoor self balancing robot. To fit the crawler tires I grabbed a 3D model of a beaded 2.2″ rim. I then modified it with freeCAD to fit over the gimbal motor – including a collar to fit around the outboard spindle.

I will mate the gimbal controller with a Sipeed Dock M1W to give the balancing robot autonomous smarts. Especially with the wifi link, it can still lean on more smarts off-board.